Index: trunk/doc/TODO
===================================================================
--- trunk/doc/TODO	(revision 17464)
+++ trunk/doc/TODO	(revision 17465)
@@ -2,6 +2,12 @@
 - fungw action transition:
 	- replace the int/char** argv action API with fungw functions in core
 	- replace the int/char** argv action API with fungw functions in plugins
+	- case sensitivity - fgw_vcall()?
+	- callers should check the return value from res:
+		- pcb_act_LoadFootprint
+		- pcb_act_SaveLayout
+	- retest import_sch
+	- free res and args after fgw_vcall() and pcb_actionv_()
 - XOR rendering upgrade: [report: pstuge]
 	- option 1: composite solution:
 		+ make sure all xor draws are done in a single pass, at the very end; consider converting XOR draw from GC into a drawing mode [report: Ade]
Index: trunk/src/action_act.c
===================================================================
--- trunk/src/action_act.c	(revision 17464)
+++ trunk/src/action_act.c	(revision 17465)
@@ -55,7 +55,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_ExecuteFile(int oargc, const char **oargv)
+fgw_error_t pcb_act_ExecuteFile(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 
Index: trunk/src/actions.c
===================================================================
--- trunk/src/actions.c	(revision 17464)
+++ trunk/src/actions.c	(revision 17465)
@@ -124,7 +124,7 @@
 	}
 }
 
-const pcb_action_t *pcb_find_action(const char *name)
+const pcb_action_t *pcb_find_action(const char *name, fgw_func_t **f_out)
 {
 	fgw_func_t *f;
 	hid_cookie_action_t *ca;
@@ -138,6 +138,8 @@
 		return NULL;
 	}
 	ca = f->reg_data;
+	if (f_out != NULL)
+		*f_out = f;
 	return ca->action;
 }
 
@@ -225,43 +227,62 @@
 	return pcb_actionv(name, argc, argv);
 }
 
-int pcb_actionv_(const pcb_action_t *a, int argc, const char **argv)
+fgw_error_t pcb_actionv_(const fgw_func_t *f, fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	int i, ret;
+	fgw_error_t ret;
+	int i;
 	const pcb_action_t *old_action;
+	hid_cookie_action_t *ca = f->reg_data;
 
 	if (conf_core.rc.verbose) {
-		printf("Action: \033[34m%s(", a->name);
+		printf("Action: \033[34m%s(", f->name);
 		for (i = 0; i < argc; i++)
-			printf("%s%s", i ? "," : "", argv[i]);
+			printf("%s%s", i ? "," : "", (argv[i].type & FGW_STR) == FGW_STR ? argv[i].val.str : "<non-str>");
 		printf(")\033[0m\n");
 	}
 
 	old_action = pcb_current_action;
-	pcb_current_action = a;
-	ret = pcb_current_action->trigger_cb(argc, argv);
+	pcb_current_action = ca->action;
+	ret = pcb_current_action->trigger_cb(res, argc, argv);
 	pcb_current_action = old_action;
 
 	return ret;
 }
 
-int pcb_actionv(const char *name, int argc, const char **argv)
+int pcb_actionv(const char *name, int argc, const char **argsv)
 {
-	const pcb_action_t *a;
+	fgw_func_t *f;
+	fgw_arg_t res, argv[PCB_ACTION_MAX_ARGS+1];
+	int n;
 
 	if (name == NULL)
 		return 1;
 
-	a = pcb_find_action(name);
-	if (a == NULL) {
+	if (argc >= PCB_ACTION_MAX_ARGS) {
+		pcb_message(PCB_MSG_ERROR, "can not call action %s with this many arguments (%d >= %d)\n", name, argc, PCB_ACTION_MAX_ARGS);
+		return 1;
+	}
+
+	f = fgw_func_lookup(&pcb_fgw, name);
+	if (f == NULL) {
 		int i;
 		pcb_message(PCB_MSG_ERROR, "no action %s(", name);
 		for (i = 0; i < argc; i++)
-			pcb_message(PCB_MSG_ERROR, "%s%s", i ? ", " : "", argv[i]);
+			pcb_message(PCB_MSG_ERROR, "%s%s", i ? ", " : "", argsv[i]);
 		pcb_message(PCB_MSG_ERROR, ")\n");
 		return 1;
 	}
-	return pcb_actionv_(a, argc, argv);
+	argv[0].type = FGW_FUNC;
+	argv[0].val.func = f;
+	for(n = 0; n < argc; n++) {
+		argv[n+1].type = FGW_STR;
+		argv[n+1].val.str = (char *)argsv[n];
+	}
+	res.type = FGW_INVALID;
+	if (pcb_actionv_(f, &res, argc+1, argv) != 0)
+		return -1;
+	fgw_argv_conv(&pcb_fgw, &res, FGW_INT);
+	return res.val.nat_int;
 }
 
 void pcb_hid_get_coords(const char *msg, pcb_coord_t *x, pcb_coord_t *y)
Index: trunk/src/actions.h
===================================================================
--- trunk/src/actions.h	(revision 17464)
+++ trunk/src/actions.h	(revision 17465)
@@ -6,7 +6,7 @@
 
 struct pcb_action_s {
 	const char *name; /* action command name */
-	fgw_error_t (*trigger_cb)(int argc, const char **argv); /* Action implementation; if this returns non-zero, no further actions will be invoked for this key/mouse event. */
+	fgw_error_t (*trigger_cb)(fgw_arg_t *ores, int argc, fgw_arg_t *argv); /* Action implementation; if this returns non-zero, no further actions will be invoked for this key/mouse event. */
 	const char *description;/* Short description (help text) */
 	const char *syntax; /* Full allowed syntax; use \n to separate lines.  */
 };
@@ -27,7 +27,7 @@
 void pcb_print_actions(void);
 void pcb_dump_actions(void);
 
-const pcb_action_t *pcb_find_action(const char *name);
+const pcb_action_t *pcb_find_action(const char *name, fgw_func_t **f_out);
 
 void pcb_remove_actions(const pcb_action_t *a, int n);
 void pcb_remove_actions_by_cookie(const char *cookie);
@@ -35,7 +35,7 @@
 int pcb_action(const char *action_);
 int pcb_actionl(const char *action_, ...); /* NULL terminated */
 int pcb_actionv(const char *action_, int argc_, const char **argv_);
-int pcb_actionv_(const pcb_action_t *a, int argc, const char **argv);
+fgw_error_t pcb_actionv_(const fgw_func_t *f, fgw_arg_t *res, int argc, fgw_arg_t *argv);
 
 /* Parse the given command string into action calls, and call
    hid_actionv for each action found.  Accepts both "action(arg1,
@@ -53,11 +53,27 @@
    else show msg and let the user click in the drawing area */
 void pcb_hid_get_coords(const char *msg, pcb_coord_t *x, pcb_coord_t *y);
 
+#define PCB_ACTION_MAX_ARGS 16
+
+PCB_INLINE int pcb_old_act_begin_conv(int oargc, fgw_arg_t *oargv, char **argv)
+{
+	int n;
+	for(n = 1; n < oargc; n++) {
+		if (fgw_argv_conv(&pcb_fgw, &oargv[n], FGW_STR) == 0)
+			argv[n-1] = oargv[n].val.str;
+		else
+			argv[n-1] = "";
+	}
+	argv[n] = NULL;
+	return oargc - 1;
+}
+
 /* temporary hack for smooth upgrade to fungw based actions */
 #define PCB_OLD_ACT_BEGIN \
 { \
-	int argc = oargc; \
-	const char **argv = oargv
+	char *argv__[PCB_ACTION_MAX_ARGS]; \
+	const char **argv = (const char **)argv__; \
+	int argc = pcb_old_act_begin_conv(oargc, oargv, argv__)
 
 #define PCB_OLD_ACT_END \
 	(void)argc; \
Index: trunk/src/brave.c
===================================================================
--- trunk/src/brave.c	(revision 17464)
+++ trunk/src/brave.c	(revision 17465)
@@ -237,7 +237,7 @@
 	"Brave()\n"
 	"Brave(setting, on|off)\n";
 static const char pcb_acth_Brave[] = "Changes brave settings.";
-static fgw_error_t pcb_act_Brave(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Brave(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	desc_t *d;
Index: trunk/src/buffer.c
===================================================================
--- trunk/src/buffer.c	(revision 17464)
+++ trunk/src/buffer.c	(revision 17465)
@@ -169,7 +169,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_LoadFootprint(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadFootprint(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *name = PCB_ACTION_ARG(0);
@@ -364,7 +364,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_FreeRotateBuffer(int oargc, const char **oargv)
+fgw_error_t pcb_act_FreeRotateBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *angle_s;
@@ -761,7 +761,7 @@
 @end table
 
 %end-doc */
-static fgw_error_t pcb_act_PasteBuffer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PasteBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = argc ? argv[0] : "";
Index: trunk/src/buffer.h
===================================================================
--- trunk/src/buffer.h	(revision 17464)
+++ trunk/src/buffer.h	(revision 17465)
@@ -82,7 +82,7 @@
 
 
 /* This action is called from ActionElementAddIf() */
-fgw_error_t pcb_act_LoadFootprint(int argc, const char **argv);
+fgw_error_t pcb_act_LoadFootprint(fgw_arg_t *res, int oargc, fgw_arg_t *oargv);
 
 /* pastes the contents of the buffer to the layout. Only visible objects
    are handled by the routine. */
Index: trunk/src/change_act.c
===================================================================
--- trunk/src/change_act.c	(revision 17464)
+++ trunk/src/change_act.c	(revision 17465)
@@ -58,8 +58,8 @@
 #include "grid.h"
 
 static void ChangeFlag(const char *, const char *, int, const char *);
-static fgw_error_t pcb_act_ChangeSize(int oargc, const char **oargv);
-static fgw_error_t pcb_act_Change2ndSize(int oargc, const char **oargv);
+static fgw_error_t pcb_act_ChangeSize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
+static fgw_error_t pcb_act_Change2ndSize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 /* --------------------------------------------------------------------------- */
 
@@ -78,7 +78,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChangeClearSize(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeClearSize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -167,7 +167,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChangeFlag(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeFlag(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -249,7 +249,7 @@
 /* --------------------------------------------------------------------------- */
 static const char changehold_syntax[] = "ChangeHole(ToggleObject|Object|SelectedVias|Selected)";
 static const char changehold_help[] = "Changes the hole flag of objects. Not supported anymore; use the propery editor.";
-static fgw_error_t pcb_act_ChangeHole(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeHole(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -258,7 +258,7 @@
 }
 static const char pcb_acts_ChangePaste[] = "ChangePaste(ToggleObject|Object|SelectedPads|Selected)";
 static const char pcb_acth_ChangePaste[] = "Changes the no paste flag of objects. Not supported anymore.";
-static fgw_error_t pcb_act_ChangePaste(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangePaste(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -282,16 +282,16 @@
 with the same arguments. If any of them did not fail, return success.
 %end-doc */
 
-static fgw_error_t pcb_act_ChangeSizes(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeSizes(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
-	int a, b, c;
+	fgw_error_t a, b, c;
 	pcb_undo_save_serial();
-	a = pcb_act_ChangeSize(argc, argv);
+	a = pcb_act_ChangeSize(ores, oargc, oargv);
 	pcb_undo_restore_serial();
-	b = pcb_act_Change2ndSize(argc, argv);
+	b = pcb_act_Change2ndSize(ores, oargc, oargv);
 	pcb_undo_restore_serial();
-	c = pcb_act_ChangeClearSize(argc, argv);
+	c = pcb_act_ChangeClearSize(ores, oargc, oargv);
 	pcb_undo_restore_serial();
 	pcb_undo_inc_serial();
 	return !(!a || !b || !c);
@@ -317,7 +317,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChangeSize(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeSize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -411,7 +411,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Change2ndSize(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Change2ndSize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -486,7 +486,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChangePinName(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangePinName(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_cardinal_t changed = 0;
@@ -558,7 +558,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_ChangeName(int oargc, const char **oargv)
+fgw_error_t pcb_act_ChangeName(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -636,7 +636,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChangeJoin(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeJoin(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -690,7 +690,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChangeNonetlist(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeNonetlist(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -728,7 +728,7 @@
 
 static const char pcb_acts_ChangeSquare[] = "ChangeSquare(ToggleObject)\n" "ChangeSquare(SelectedElements|SelectedPins)\n" "ChangeSquare(Selected|SelectedObjects)";
 static const char pcb_acth_ChangeSquare[] = "Changes the square flag of pins and pads. Not supported anymore.";
-static fgw_error_t pcb_act_ChangeSquare(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeSquare(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -737,7 +737,7 @@
 }
 static const char pcb_acts_SetSquare[] = "SetSquare(ToggleObject|SelectedElements|SelectedPins)";
 static const char pcb_acth_SetSquare[] = "sets the square-flag of objects. Not supported anymore.";
-static fgw_error_t pcb_act_SetSquare(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetSquare(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -747,7 +747,7 @@
 
 static const char pcb_acts_ClearSquare[] = "ClearSquare(ToggleObject|SelectedElements|SelectedPins)";
 static const char pcb_acth_ClearSquare[] = "Clears the square-flag of pins and pads. Not supported anymore.";
-static fgw_error_t pcb_act_ClearSquare(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ClearSquare(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -756,7 +756,7 @@
 }
 static const char pcb_acts_ChangeOctagon[] = "ChangeOctagon(Object|ToggleObject|SelectedObjects|Selected)\n" "ChangeOctagon(SelectedElements|SelectedPins|SelectedVias)";
 static const char pcb_acth_ChangeOctagon[] = "Changes the octagon-flag of pins and vias. Not supported anymore.";
-static fgw_error_t pcb_act_ChangeOctagon(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeOctagon(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -765,7 +765,7 @@
 }
 static const char pcb_acts_SetOctagon[] = "SetOctagon(Object|ToggleObject|SelectedElements|Selected)";
 static const char pcb_acth_SetOctagon[] = "Sets the octagon-flag of objects. Not supported anymore.";
-static fgw_error_t pcb_act_SetOctagon(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetOctagon(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -774,7 +774,7 @@
 }
 static const char pcb_acts_ClearOctagon[] = "ClearOctagon(ToggleObject|Object|SelectedObjects|Selected)\n" "ClearOctagon(SelectedElements|SelectedPins|SelectedVias)";
 static const char pcb_acth_ClearOctagon[] = "Clears the octagon-flag of pins and vias. Not supported anymore.";
-static fgw_error_t pcb_act_ClearOctagon(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ClearOctagon(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported with padstacks.\n");
@@ -813,7 +813,7 @@
 to connect with. However, they will have no effect without the polygon.
 %end-doc */
 
-static fgw_error_t pcb_act_SetThermal(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetThermal(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -881,7 +881,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SetFlag(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetFlag(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -912,7 +912,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ClrFlag(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ClrFlag(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -947,7 +947,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SetValue(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetValue(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -1027,7 +1027,7 @@
 	"ChangeAngle(SelectedObjects|Selected, start|delta|both, delta)\n"
 	"ChangeAngle(SelectedArcs, start|delta|both, delta)\n";
 static const char pcb_acth_ChangeAngle[] = "Changes the start angle, delta angle or both angles of an arc.";
-static fgw_error_t pcb_act_ChangeAngle(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeAngle(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -1103,7 +1103,7 @@
 	"ChangeRadius(SelectedObjects|Selected, width|x|height|y|both, delta)\n"
 	"ChangeRadius(SelectedArcs, width|x|height|y|both, delta)\n";
 static const char pcb_acth_ChangeRadius[] = "Changes the width or height (radius) of an arc.";
-static fgw_error_t pcb_act_ChangeRadius(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChangeRadius(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
Index: trunk/src/conf_act.c
===================================================================
--- trunk/src/conf_act.c	(revision 17464)
+++ trunk/src/conf_act.c	(revision 17465)
@@ -53,7 +53,7 @@
 	return res;
 }
 
-static fgw_error_t pcb_act_Conf(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Conf(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *cmd = argc > 0 ? argv[0] : 0;
@@ -224,7 +224,7 @@
 /*------------ get/chk (check flag actions for menus) ------------------*/
 static const char GetStyle_syntax[] = "GetStyle()" ;
 static const char GetStyle_help[] = "Return integer index (>=0) of the currently active style or -1 if no style is selected (== custom style)";
-static fgw_error_t pcb_act_GetStyle(int oargc, const char **oargv)
+static fgw_error_t pcb_act_GetStyle(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	return pcb_route_style_lookup(&PCB->RouteStyle, conf_core.design.line_thickness, conf_core.design.via_thickness, conf_core.design.via_drilling_hole, conf_core.design.clearance, NULL);
@@ -233,7 +233,7 @@
 
 static const char ChkMode_syntax[] = "ChkMode(expected_mode)" ;
 static const char ChkMode_help[] = "Return 1 if the currently selected mode is the expected_mode";
-static fgw_error_t pcb_act_ChkMode(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkMode(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 #warning cleanup TODO: convert this to a compile-time hash; or make the toolbar configurable from the menu file
@@ -278,7 +278,7 @@
 	"ChkGridSize(none)\n"
 	;
 static const char ChkGridSize_help[] = "Return 1 if the currently selected grid matches the expected_size. If argument is \"none\" return 1 if there is no grid.";
-static fgw_error_t pcb_act_ChkGridSize(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkGridSize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	assert(argc == 1);
@@ -291,7 +291,7 @@
 
 static const char ChkSubcID_syntax[] = "ChkSubcID(pattern)\n";
 static const char ChkSubcID_help[] = "Return 1 if currently shown subc ID matches the requested pattern";
-static fgw_error_t pcb_act_ChkSubcID(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkSubcID(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *have = conf_core.editor.subc_id, *expected;
@@ -306,7 +306,7 @@
 
 static const char ChkGridUnits_syntax[] = "ChkGridUnits(expected)";
 static const char ChkGridUnits_help[] = "Return 1 if currently selected grid unit matches the expected (normally mm or mil)";
-static fgw_error_t pcb_act_ChkGridUnits(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkGridUnits(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	assert(argc == 1);
@@ -316,7 +316,7 @@
 
 static const char ChkBuffer_syntax[] = "ChkBuffer(idx)";
 static const char ChkBuffer_help[] = "Return 1 if currently selected buffer's index matches idx";
-static fgw_error_t pcb_act_ChkBuffer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int expected = argv[0][0] - '0';
Index: trunk/src/file_act.c
===================================================================
--- trunk/src/file_act.c	(revision 17464)
+++ trunk/src/file_act.c	(revision 17465)
@@ -64,7 +64,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ExecCommand(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ExecCommand(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *command;
@@ -118,7 +118,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LoadFrom(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function, *name, *format = NULL;
@@ -183,7 +183,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_New(int oargc, const char **oargv)
+static fgw_error_t pcb_act_New(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *argument_name = PCB_ACTION_ARG(0);
@@ -228,7 +228,7 @@
 /* --------------------------------------------------------------------------- */
 static const char pcb_acts_normalize[] = "Normalize()";
 static const char pcb_acth_normalize[] = "Move all objects within the drawing area, align the drawing to 0;0";
-static fgw_error_t pcb_act_normalize(int oargc, const char **oargv)
+static fgw_error_t pcb_act_normalize(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	return pcb_board_normalize(PCB);
@@ -269,7 +269,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SaveTo(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SaveTo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function;
@@ -372,7 +372,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Quit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Quit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *force = PCB_ACTION_ARG(0);
@@ -390,7 +390,7 @@
 /* --------------------------------------------------------------------------- */
 static const char pcb_acts_Export[] = "Export(exporter, [exporter-args])";
 static const char pcb_acth_Export[] = "Export the current layout, e.g. Export(png, --dpi, 600)";
-static fgw_error_t pcb_act_Export(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Export(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc < 1) {
@@ -419,7 +419,7 @@
 
 static const char pcb_acts_Backup[] = "Backup()";
 static const char pcb_acth_Backup[] = "Backup the current layout - save using the same method that the timed backup function uses";
-static fgw_error_t pcb_act_Backup(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Backup(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_backup();
Index: trunk/src/find_act.c
===================================================================
--- trunk/src/find_act.c	(revision 17464)
+++ trunk/src/find_act.c	(revision 17465)
@@ -53,7 +53,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_DRCheck(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DRCheck(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int count;
Index: trunk/src/font_act.c
===================================================================
--- trunk/src/font_act.c	(revision 17464)
+++ trunk/src/font_act.c	(revision 17465)
@@ -38,7 +38,7 @@
 static const char pcb_acts_load_font_from[] = "LoadFontFrom([file, id])";
 static const char pcb_acth_load_font_from[] = "Load PCB font from a file";
 
-fgw_error_t pcb_act_load_font_from(int oargc, const char **oargv)
+fgw_error_t pcb_act_load_font_from(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname, *sid;
@@ -105,7 +105,7 @@
 static const char pcb_acts_save_font_to[] = "SaveFontTo([file, id])";
 static const char pcb_acth_save_font_to[] = "Save PCB font to a file";
 
-fgw_error_t pcb_act_save_font_to(int oargc, const char **oargv)
+fgw_error_t pcb_act_save_font_to(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname, *sid;
Index: trunk/src/gui_act.c
===================================================================
--- trunk/src/gui_act.c	(revision 17464)
+++ trunk/src/gui_act.c	(revision 17465)
@@ -224,7 +224,7 @@
 }
 
 extern pcb_opfunc_t ChgFlagFunctions;
-static fgw_error_t pcb_act_Display(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Display(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function, *str_dir;
@@ -556,7 +556,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Mode(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Mode(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -758,7 +758,7 @@
 static const char pcb_acth_CycleDrag[] = "Cycle through which object is being dragged";
 
 #define close_enough(a, b) ((((a)-(b)) > 0) ? ((a)-(b) < (PCB_SLOP * pcb_pixel_slop)) : ((a)-(b) > -(PCB_SLOP * pcb_pixel_slop)))
-static fgw_error_t pcb_act_CycleDrag(int oargc, const char **oargv)
+static fgw_error_t pcb_act_CycleDrag(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	void *ptr1, *ptr2, *ptr3;
@@ -846,7 +846,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Message(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Message(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int i;
@@ -876,7 +876,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ToggleHideName(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ToggleHideName(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "ToggleHideName: deprecated feature removed with subcircuits; just delete\nthe text object if it should not be on the silk of the final board.\n");
@@ -904,7 +904,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_MarkCrosshair(int oargc, const char **oargv)
+static fgw_error_t pcb_act_MarkCrosshair(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -951,7 +951,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_RouteStyle(int oargc, const char **oargv)
+static fgw_error_t pcb_act_RouteStyle(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *str = PCB_ACTION_ARG(0);
@@ -997,7 +997,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_CreateMenu(int oargc, const char **oargv)
+static fgw_error_t pcb_act_CreateMenu(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (pcb_gui == NULL) {
@@ -1030,7 +1030,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_RemoveMenu(int oargc, const char **oargv)
+static fgw_error_t pcb_act_RemoveMenu(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (pcb_gui == NULL) {
@@ -1082,7 +1082,7 @@
 		pcb_use_route_style_idx(&PCB->RouteStyle, known);
 }
 
-static fgw_error_t pcb_act_SetSame(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetSame(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -1142,7 +1142,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SwitchHID(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SwitchHID(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_hid_t *ng = pcb_hid_find_gui(argv[0]);
@@ -1170,7 +1170,7 @@
 
 static const char pcb_acth_FullScreen[] = "Hide widgets to get edit area full screen";
 
-static fgw_error_t pcb_act_FullScreen(int oargc, const char **oargv)
+static fgw_error_t pcb_act_FullScreen(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *op = argv == NULL ? NULL : argv[0];
@@ -1192,7 +1192,7 @@
 	"Tells the GUI that the whole PCB has changed. The optional \"revert\""
 	"parameter can be used as a hint to the GUI that the same design is being"
 	"reloaded, and that it might keep some viewport settings";
-static fgw_error_t pcb_act_PCBChanged(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PCBChanged(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *rv = argv == NULL ? NULL : argv[0];
@@ -1203,7 +1203,7 @@
 
 static const char pcb_acts_NetlistChanged[] = "NetlistChanged()";
 static const char pcb_acth_NetlistChanged[] = "Tells the GUI that the netlist has changed.";
-static fgw_error_t pcb_act_NetlistChanged(int oargc, const char **oargv)
+static fgw_error_t pcb_act_NetlistChanged(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_netlist_changed(0);
@@ -1214,7 +1214,7 @@
 
 static const char pcb_acts_RouteStylesChanged[] = "RouteStylesChanged()";
 static const char pcb_acth_RouteStylesChanged[] = "Tells the GUI that the routing styles have changed.";
-static fgw_error_t pcb_act_RouteStylesChanged(int oargc, const char **oargv)
+static fgw_error_t pcb_act_RouteStylesChanged(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_event(PCB_EVENT_ROUTE_STYLES_CHANGED, NULL);
@@ -1224,7 +1224,7 @@
 
 static const char pcb_acts_LibraryChanged[] = "LibraryChanged()";
 static const char pcb_acth_LibraryChanged[] = "Tells the GUI that the libraries have changed.";
-static fgw_error_t pcb_act_LibraryChanged(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LibraryChanged(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_event(PCB_EVENT_LIBRARY_CHANGED, NULL);
@@ -1269,7 +1269,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Cursor(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Cursor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_unit_list_t extra_units_x = {
@@ -1342,7 +1342,7 @@
 
 static const char pcb_acts_EditLayer[] = "Editlayer([@layer], [name=text|auto=[0|1]|sub=[0|1])]\nEditlayer([@layer], attrib, key=value)";
 static const char pcb_acth_EditLayer[] = "Change a property or attribute of a layer. If the first argument starts with @, it is taken as the layer name to manipulate, else the action uses the current layer. Without arguments or if only a layer name is specified, interactive runs editing.";
-static fgw_error_t pcb_act_EditLayer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_EditLayer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int ret = 0, n, interactive = 1, explicit = 0;
@@ -1449,7 +1449,7 @@
 pcb_layergrp_id_t pcb_actd_EditGroup_gid = -1;
 static const char pcb_acts_EditGroup[] = "Editgroup([@group], [name=text|type=+bit|type=-bit])]\nEditlayer([@layer], attrib, key=value)";
 static const char pcb_acth_EditGroup[] = "Change a property or attribute of a layer group. If the first argument starts with @, it is taken as the group name to manipulate, else the action uses the current layer's group. Without arguments or if only a layer name is specified, interactive runs editing.";
-static fgw_error_t pcb_act_EditGroup(int oargc, const char **oargv)
+static fgw_error_t pcb_act_EditGroup(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int ret = 0, n, interactive = 1, explicit = 0;
@@ -1569,7 +1569,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SelectLayer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SelectLayer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_layer_id_t lid;
@@ -1614,7 +1614,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ChkLayer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkLayer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_layer_id_t lid;
@@ -1672,7 +1672,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ToggleView(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ToggleView(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_layer_id_t lid;
@@ -1757,7 +1757,7 @@
 Return 1 if layerid is visible. Intended for meu item 'checked' fields.
 %end-doc */
 
-static fgw_error_t pcb_act_ChkView(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkView(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_layer_id_t lid;
@@ -1815,7 +1815,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SetUnits(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SetUnits(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const pcb_unit_t *new_unit;
@@ -1833,7 +1833,7 @@
 	"grid(set, [name:]size[@offs][!unit])\n"
 	"grid(+|up)\n" "grid(-|down)\n" "grid(#N)\n" "grid(idx, N)\n";
 static const char pcb_acth_grid[] = "Set the grid.";
-static fgw_error_t pcb_act_grid(int oargc, const char **oargv)
+static fgw_error_t pcb_act_grid(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc == 0)
@@ -1872,7 +1872,7 @@
 Return 1 if route_style_id matches pen.
 %end-doc */
 
-static fgw_error_t pcb_act_ChkRst(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ChkRst(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int rid;
@@ -1903,7 +1903,7 @@
 Prompts the user for a coordinate, if one is not already selected.
 
 %end-doc */
-static fgw_error_t pcb_act_GetXY(int oargc, const char **oargv)
+static fgw_error_t pcb_act_GetXY(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -1933,7 +1933,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_PrintCalibrate(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintCalibrate(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_hid_t *printer = pcb_hid_find_printer();
Index: trunk/src/hid_flags.c
===================================================================
--- trunk/src/hid_flags.c	(revision 17464)
+++ trunk/src/hid_flags.c	(revision 17465)
@@ -57,9 +57,10 @@
 	}
 	else {
 		const char *end, *s;
-		const char *argv[2];
+		fgw_arg_t res, argv[2];
 		if (cp != NULL) {
 			const pcb_action_t *a;
+			fgw_func_t *f;
 			char buff[256];
 			int len, multiarg;
 			len = cp - name;
@@ -69,7 +70,7 @@
 			}
 			memcpy(buff, name, len);
 			buff[len] = '\0';
-			a = pcb_find_action(buff);
+			a = pcb_find_action(buff, &f);
 			if (!a) {
 				pcb_message(PCB_MSG_ERROR, "hid_get_flag: no action %s\n", name);
 				return -1;
@@ -95,9 +96,15 @@
 				len = end - cp;
 				memcpy(buff, cp, len);
 				buff[len] = '\0';
-				argv[0] = buff;
-				argv[1] = NULL;
-				return pcb_actionv_(a, len > 0, argv);
+				argv[0].type = FGW_FUNC;
+				argv[0].val.func = f;
+				argv[1].type = FGW_STR;
+				argv[1].val.str = buff;
+				res.type = FGW_INVALID;
+				if (pcb_actionv_(f, &res, (len > 0) ? 2 : 1, argv) != 0)
+					return -1;
+				fgw_argv_conv(&pcb_fgw, &res, FGW_INT);
+				return res.val.nat_int;
 			}
 			else {
 				/* slower but more generic way */
Index: trunk/src/main_act.c
===================================================================
--- trunk/src/main_act.c	(revision 17464)
+++ trunk/src/main_act.c	(revision 17465)
@@ -57,7 +57,7 @@
 
 static const char pcb_acth_PrintActions[] = "Print all actions available.";
 
-fgw_error_t pcb_act_PrintActions(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintActions(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_print_actions();
@@ -70,7 +70,7 @@
 
 static const char pcb_acth_DumpActions[] = "Dump all actions available.";
 
-fgw_error_t pcb_act_DumpActions(int oargc, const char **oargv)
+fgw_error_t pcb_act_DumpActions(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_dump_actions();
@@ -164,7 +164,7 @@
 	return 0;
 }
 
-fgw_error_t pcb_act_PrintUsage(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintUsage(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	u("");
@@ -198,7 +198,7 @@
 
 static const char pcb_acth_PrintVersion[] = "Print version.";
 
-fgw_error_t pcb_act_PrintVersion(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintVersion(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	printf("pcb-rnd version %s rev %s\n", PCB_VERSION, PCB_REVISION);
@@ -211,7 +211,7 @@
 
 static const char pcb_acth_PrintCopyright[] = "Print copyright notice.";
 
-fgw_error_t pcb_act_PrintCopyright(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintCopyright(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	printf("\n"
@@ -255,7 +255,7 @@
 	printf("\"\n");
 }
 
-fgw_error_t pcb_act_PrintPaths(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintPaths(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	htsp_entry_t *e;
@@ -285,7 +285,7 @@
 	}
 }
 
-fgw_error_t pcb_act_PrintFiles(int oargc, const char **oargv)
+fgw_error_t pcb_act_PrintFiles(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	htsp_entry_t *e;
@@ -301,7 +301,7 @@
 
 static const char pcb_acth_DumpPlugins[] = "Print plugins loaded in a format digestable by scripts.";
 
-fgw_error_t pcb_act_DumpPlugins(int oargc, const char **oargv)
+fgw_error_t pcb_act_DumpPlugins(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pup_plugin_t *p;
@@ -329,7 +329,7 @@
 
 static const char pcb_acth_DumpPluginDirs[] = "Print plugins directories in a format digestable by scripts.";
 
-fgw_error_t pcb_act_DumpPluginDirs(int oargc, const char **oargv)
+fgw_error_t pcb_act_DumpPluginDirs(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char **p;
@@ -347,7 +347,7 @@
 	printf("	%lx	%s	%s\n", flg, fb->name, fb->help);
 }
 
-fgw_error_t pcb_act_DumpObjFlags(int oargc, const char **oargv)
+fgw_error_t pcb_act_DumpObjFlags(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	unsigned long ot, max = PCB_OBJ_CLASS_REAL + 1;
@@ -366,7 +366,7 @@
 
 static const char pcb_acts_System[] = "System(shell_cmd)";
 static const char pcb_acth_System[] = "Run shell command";
-fgw_error_t pcb_act_System(int oargc, const char **oargv)
+fgw_error_t pcb_act_System(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char tmp[128];
Index: trunk/src/netlist_act.c
===================================================================
--- trunk/src/netlist_act.c	(revision 17464)
+++ trunk/src/netlist_act.c	(revision 17465)
@@ -234,7 +234,7 @@
 
 typedef void (*NFunc) (pcb_lib_menu_t *, pcb_lib_entry_t *);
 
-static fgw_error_t pcb_act_Netlist(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Netlist(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	NFunc func;
Index: trunk/src/obj_pstk_act.c
===================================================================
--- trunk/src/obj_pstk_act.c	(revision 17464)
+++ trunk/src/obj_pstk_act.c	(revision 17465)
@@ -38,7 +38,7 @@
 static const char pcb_acts_padstackconvert[] = "PadstackConvert(buffer|selected, [originx, originy])";
 static const char pcb_acth_padstackconvert[] = "Convert selection or current buffer to padstack";
 
-fgw_error_t pcb_act_padstackconvert(int oargc, const char **oargv)
+fgw_error_t pcb_act_padstackconvert(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -107,7 +107,7 @@
 static const char pcb_acts_padstackplace[] = "PadstackPlace([proto_id|default], [x, y])";
 static const char pcb_acth_padstackplace[] = "Place a pad stack (either proto_id, or if not specified, the default for style)";
 
-fgw_error_t pcb_act_padstackplace(int oargc, const char **oargv)
+fgw_error_t pcb_act_padstackplace(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_cardinal_t pid;
Index: trunk/src/object_act.c
===================================================================
--- trunk/src/object_act.c	(revision 17464)
+++ trunk/src/object_act.c	(revision 17465)
@@ -70,7 +70,7 @@
 %end-doc */
 
 
-static fgw_error_t pcb_act_Attributes(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Attributes(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -227,7 +227,7 @@
 	}
 }
 
-static fgw_error_t pcb_act_DisperseElements(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DisperseElements(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -300,7 +300,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Flip(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Flip(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -355,7 +355,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_MoveObject(int oargc, const char **oargv)
+static fgw_error_t pcb_act_MoveObject(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *x_str = PCB_ACTION_ARG(0);
@@ -405,7 +405,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_MoveToCurrentLayer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_MoveToCurrentLayer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -508,12 +508,12 @@
 	return strcmp(got_name, expect_name);
 }
 
-static fgw_error_t pcb_act_ElementList(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ElementList(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_subc_t *sc;
 	const char *refdes, *value, *footprint;
-	const char *args[3];
+	fgw_arg_t res, args[4];
 	const char *function = argv[0];
 	int fx, fy, fs;
 
@@ -561,9 +561,15 @@
 	footprint = PCB_ACTION_ARG(1);
 	value = PCB_ACTION_ARG(2);
 
-	args[0] = footprint;
-	args[1] = refdes;
-	args[2] = value;
+	args[0].type = FGW_FUNC;
+	args[0].val.func = NULL;
+	args[1].type = FGW_STR;
+	args[1].val.str = (char *)footprint;
+	args[2].type = FGW_STR;
+	args[2].val.str = (char *)refdes;
+	args[3].type = FGW_STR;
+	args[3].val.str = (char *)value;
+	argc = 4;
 
 	/* turn of flip to avoid mirror/rotat confusion */
 	fx = conf_core.editor.view.flip_x;
@@ -588,7 +594,7 @@
 		printf("  ... Footprint not on board, need to add it.\n");
 #endif
 		/* Not on board, need to add it. */
-		if (pcb_act_LoadFootprint(argc, args)) {
+		if (pcb_act_LoadFootprint(&res, argc, args)) {
 			number_of_footprints_not_found++;
 			return 1;
 		}
@@ -629,7 +635,7 @@
 		double orig_rot;
 
 		/* Different footprint, we need to swap them out.  */
-		if (pcb_act_LoadFootprint(argc, args) != 0) {
+		if (pcb_act_LoadFootprint(&res, argc, args) != 0) {
 			number_of_footprints_not_found++;
 			return 1;
 		}
@@ -716,7 +722,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ElementSetAttr(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ElementSetAttr(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_subc_t *sc;
@@ -766,7 +772,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_RipUp(int oargc, const char **oargv)
+static fgw_error_t pcb_act_RipUp(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -841,7 +847,7 @@
 
 static const char pcb_acts_MinMaskGap[] = "MinMaskGap(delta)\n" "MinMaskGap(Selected, delta)";
 static const char pcb_acth_MinMaskGap[] = "Ensures the mask is a minimum distance from pins and pads. Not supported anymore.";
-static fgw_error_t pcb_act_MinMaskGap(int oargc, const char **oargv)
+static fgw_error_t pcb_act_MinMaskGap(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_ERROR, "Feature not supported; use padstackedit()\n");
@@ -916,7 +922,7 @@
 	PCB_ENDALL_LOOP;
 }
 
-static fgw_error_t pcb_act_MinClearGap(int oargc, const char **oargv)
+static fgw_error_t pcb_act_MinClearGap(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -999,7 +1005,7 @@
 
 %end-doc */
 extern pcb_layergrp_id_t pcb_actd_EditGroup_gid;
-fgw_error_t pcb_act_MoveLayer(int oargc, const char **oargv)
+fgw_error_t pcb_act_MoveLayer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int old_index, new_index;
@@ -1085,7 +1091,7 @@
 
 static const char pcb_acts_CreateText[] = "CreateText(layer, fontID, X, Y, direction, scale, text)\n";
 static const char pcb_acth_CreateText[] = "Create a new text object";
-static fgw_error_t pcb_act_CreateText(int oargc, const char **oargv)
+static fgw_error_t pcb_act_CreateText(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -1131,7 +1137,7 @@
 	"subc(loose, on|off|toggle|check)\n"
 	;
 static const char pcb_acth_subc[] = "Various operations on subc";
-static fgw_error_t pcb_act_subc(int oargc, const char **oargv)
+static fgw_error_t pcb_act_subc(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc == 0)
@@ -1237,7 +1243,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Rotate90(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Rotate90(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *ssteps = PCB_ACTION_ARG(0);
Index: trunk/src/plug_footprint_act.c
===================================================================
--- trunk/src/plug_footprint_act.c	(revision 17464)
+++ trunk/src/plug_footprint_act.c	(revision 17465)
@@ -33,7 +33,7 @@
 
 static const char pcb_acts_fp_rehash[] = "fp_rehash()" ;
 static const char pcb_acth_fp_rehash[] = "Flush the library index; rescan all library search paths and rebuild the library index. Useful if there are changes in the library during a pcb-rnd session.";
-static fgw_error_t pcb_act_fp_rehash(int oargc, const char **oargv)
+static fgw_error_t pcb_act_fp_rehash(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_fplibrary_t *l;
Index: trunk/src/plugins.c
===================================================================
--- trunk/src/plugins.c	(revision 17464)
+++ trunk/src/plugins.c	(revision 17465)
@@ -66,7 +66,7 @@
 
 static const char pcb_acth_ManagePlugins[] = "Manage plugins dialog.";
 
-static fgw_error_t pcb_act_ManagePlugins(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ManagePlugins(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pup_plugin_t *p;
Index: trunk/src/polygon_act.c
===================================================================
--- trunk/src/polygon_act.c	(revision 17464)
+++ trunk/src/polygon_act.c	(revision 17465)
@@ -66,7 +66,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_MorphPolygon(int oargc, const char **oargv)
+static fgw_error_t pcb_act_MorphPolygon(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -131,7 +131,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Polygon(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Polygon(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
Index: trunk/src/rats_act.c
===================================================================
--- trunk/src/rats_act.c	(revision 17464)
+++ trunk/src/rats_act.c	(revision 17465)
@@ -76,7 +76,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_AddRats(int oargc, const char **oargv)
+static fgw_error_t pcb_act_AddRats(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -153,7 +153,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Connection(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Connection(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -205,7 +205,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_DeleteRats(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DeleteRats(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
Index: trunk/src/rats_patch.c
===================================================================
--- trunk/src/rats_patch.c	(revision 17464)
+++ trunk/src/rats_patch.c	(revision 17465)
@@ -383,7 +383,7 @@
 
 static const char pcb_acth_ReplaceFootprint[] = "Replace the footprint of the selected components with the footprint specified.";
 
-static fgw_error_t pcb_act_ReplaceFootprint(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ReplaceFootprint(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fpname;
@@ -472,7 +472,7 @@
 /* %start-doc actions SavePatch
 Save netlist patch for back annotation.
 %end-doc */
-static fgw_error_t pcb_act_SavePatch(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SavePatch(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fn;
Index: trunk/src/remove_act.c
===================================================================
--- trunk/src/remove_act.c	(revision 17464)
+++ trunk/src/remove_act.c	(revision 17465)
@@ -50,7 +50,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Delete(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Delete(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -96,7 +96,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_RemoveSelected(int oargc, const char **oargv)
+static fgw_error_t pcb_act_RemoveSelected(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (pcb_remove_selected())
Index: trunk/src/select_act.c
===================================================================
--- trunk/src/select_act.c	(revision 17464)
+++ trunk/src/select_act.c	(revision 17465)
@@ -85,7 +85,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Select(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Select(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -194,7 +194,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Unselect(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Unselect(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
Index: trunk/src/undo_act.c
===================================================================
--- trunk/src/undo_act.c	(revision 17464)
+++ trunk/src/undo_act.c	(revision 17465)
@@ -88,7 +88,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_Atomic(int oargc, const char **oargv)
+fgw_error_t pcb_act_Atomic(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc != 1)
@@ -136,7 +136,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_Undo(int oargc, const char **oargv)
+fgw_error_t pcb_act_Undo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
@@ -180,7 +180,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_Redo(int oargc, const char **oargv)
+fgw_error_t pcb_act_Redo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_notify_crosshair_change(pcb_false);
Index: trunk/src/undo_act.h
===================================================================
--- trunk/src/undo_act.h	(revision 17464)
+++ trunk/src/undo_act.h	(revision 17465)
@@ -1,4 +1,4 @@
 /* Publish actions - these may be useful for other actions */
-fgw_error_t pcb_act_Undo(int argc, const char **argv);
-fgw_error_t pcb_act_Redo(int argc, const char **argv);
-fgw_error_t pcb_act_Atomic(int argc, const char **argv);
+fgw_error_t pcb_act_Undo(fgw_arg_t *res, int oargc, fgw_arg_t *oargv);
+fgw_error_t pcb_act_Redo(fgw_arg_t *res, int oargc, fgw_arg_t *oargv);
+fgw_error_t pcb_act_Atomic(fgw_arg_t *res, int oargc, fgw_arg_t *oargv);
Index: trunk/src_plugins/acompnet/acompnet.c
===================================================================
--- trunk/src_plugins/acompnet/acompnet.c	(revision 17464)
+++ trunk/src_plugins/acompnet/acompnet.c	(revision 17465)
@@ -85,7 +85,7 @@
 static const char pcb_acts_acompnet[] = "acompnet()\n" ;
 static const char pcb_acth_acompnet[] = "Attempt to auto-complete the current network";
 
-static fgw_error_t pcb_act_acompnet(int oargc, const char **oargv)
+static fgw_error_t pcb_act_acompnet(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	acompnet_mesh();
Index: trunk/src_plugins/autocrop/autocrop.c
===================================================================
--- trunk/src_plugins/autocrop/autocrop.c	(revision 17464)
+++ trunk/src_plugins/autocrop/autocrop.c	(revision 17465)
@@ -40,7 +40,7 @@
 
 static const char pcb_acth_autocrop[] = "Autocrops the board dimensions to (extants + a margin of 1 grid), keeping the move and board size grid aligned";
 static const char pcb_acts_autocrop[] = "autocrop()";
-static fgw_error_t pcb_act_autocrop(int oargc, const char **oargv)
+static fgw_error_t pcb_act_autocrop(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_box_t box;
Index: trunk/src_plugins/autoplace/action.c
===================================================================
--- trunk/src_plugins/autoplace/action.c	(revision 17464)
+++ trunk/src_plugins/autoplace/action.c	(revision 17465)
@@ -51,7 +51,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_AutoPlaceSelected(int oargc, const char **oargv)
+static fgw_error_t pcb_act_AutoPlaceSelected(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_event(PCB_EVENT_BUSY, NULL);
Index: trunk/src_plugins/autoroute/action.c
===================================================================
--- trunk/src_plugins/autoroute/action.c	(revision 17464)
+++ trunk/src_plugins/autoroute/action.c	(revision 17465)
@@ -69,7 +69,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_AutoRoute(int oargc, const char **oargv)
+static fgw_error_t pcb_act_AutoRoute(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = PCB_ACTION_ARG(0);
Index: trunk/src_plugins/boardflip/boardflip.c
===================================================================
--- trunk/src_plugins/boardflip/boardflip.c	(revision 17464)
+++ trunk/src_plugins/boardflip/boardflip.c	(revision 17465)
@@ -166,7 +166,7 @@
 	PCB_END_LOOP;
 }
 
-static fgw_error_t pcb_act_boardflip(int oargc, const char **oargv)
+static fgw_error_t pcb_act_boardflip(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int h = PCB->MaxHeight;
Index: trunk/src_plugins/diag/diag.c
===================================================================
--- trunk/src_plugins/diag/diag.c	(revision 17464)
+++ trunk/src_plugins/diag/diag.c	(revision 17465)
@@ -59,7 +59,7 @@
 
 extern lht_doc_t *conf_main_root[];
 extern lht_doc_t *conf_plug_root[];
-static fgw_error_t pcb_act_DumpConf(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DumpConf(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *cmd = argc > 0 ? argv[0] : NULL;
@@ -114,7 +114,7 @@
 
 static const char eval_conf_help[] = "Perform various operations on the configuration tree.";
 
-static fgw_error_t pcb_act_EvalConf(int oargc, const char **oargv)
+static fgw_error_t pcb_act_EvalConf(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *path = argc > 0 ? argv[0] : NULL;
@@ -170,7 +170,7 @@
 static const char dump_layers_help[] = "Print info about each layer";
 
 extern lht_doc_t *conf_main_root[];
-static fgw_error_t pcb_act_DumpLayers(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DumpLayers(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int g, n, used;
@@ -268,7 +268,7 @@
 
 static const char dump_fonts_syntax[] = "dumpfonts()\n";
 static const char dump_fonts_help[] = "Print info about fonts";
-static fgw_error_t pcb_act_DumpFonts(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DumpFonts(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	printf("Font summary:\n");
@@ -288,7 +288,7 @@
 extern void undo_dump(void);
 static const char dump_undo_syntax[] = "dumpfonts()\n";
 static const char dump_undo_help[] = "Print info about fonts";
-static fgw_error_t pcb_act_DumpUndo(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DumpUndo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	printf("Undo:\n");
@@ -345,7 +345,7 @@
 
 static const char dump_data_syntax[] = "dumpdata()\n";
 static const char dump_data_help[] = "Dump an aspect of the data";
-static fgw_error_t pcb_act_DumpData(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DumpData(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	dd_flags what = DD_DRC | DD_COPPER_ONLY;
@@ -358,7 +358,7 @@
 
 static const char integrity_syntax[] = "integrity()\n";
 static const char integrity_help[] = "perform integrirty check on the current board and generate errors if needed";
-static fgw_error_t pcb_act_integrity(int oargc, const char **oargv)
+static fgw_error_t pcb_act_integrity(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_check_integrity(PCB);
@@ -383,7 +383,7 @@
 
 static const char dumpflags_syntax[] = "dumpflags([fmt])\n";
 static const char dumpflags_help[] = "dump flags, optionally using the format string provided by the user";
-static fgw_error_t pcb_act_dumpflags(int oargc, const char **oargv)
+static fgw_error_t pcb_act_dumpflags(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int n;
@@ -420,7 +420,7 @@
 
 static const char d1_syntax[] = "d1()\n";
 static const char d1_help[] = "debug action for development";
-static fgw_error_t pcb_act_d1(int oargc, const char **oargv)
+static fgw_error_t pcb_act_d1(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	printf("D1!\n");
@@ -433,7 +433,7 @@
 
 static const char forcecolor_syntax[] = "forcecolor(#RRGGBB)\n";
 static const char forcecolor_help[] = "change selected objects' color to #RRGGBB, reset if does not start with '#'";
-static fgw_error_t pcb_act_forcecolor(int oargc, const char **oargv)
+static fgw_error_t pcb_act_forcecolor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
Index: trunk/src_plugins/dialogs/TEMPLATE.c
===================================================================
--- trunk/src_plugins/dialogs/TEMPLATE.c	(revision 17464)
+++ trunk/src_plugins/dialogs/TEMPLATE.c	(revision 17465)
@@ -85,7 +85,7 @@
 
 static const char pcb_acts_Foo[] = "Foo(object)\n"; <<<- edit this
 static const char pcb_acth_Foo[] = ""; <<<- edit this
-static fgw_error_t pcb_act_Foo(int oargc, const char **oargv) <<<- edit this
+static fgw_error_t pcb_act_Foo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv) <<<- edit this
 {
 	return 0;
 }
Index: trunk/src_plugins/dialogs/TEMPLATE_MODAL.c
===================================================================
--- trunk/src_plugins/dialogs/TEMPLATE_MODAL.c	(revision 17464)
+++ trunk/src_plugins/dialogs/TEMPLATE_MODAL.c	(revision 17465)
@@ -68,7 +68,7 @@
 
 static const char pcb_acts_Foo[] = "Foo(object)\n"; <<<- edit this
 static const char pcb_acth_Foo[] = ""; <<<- edit this
-static fgw_error_t pcb_act_Foo(int oargc, const char **oargv) <<<- edit this
+static fgw_error_t pcb_act_Foo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv) <<<- edit this
 {
 	return 0;
 }
Index: trunk/src_plugins/dialogs/dlg_about.c
===================================================================
--- trunk/src_plugins/dialogs/dlg_about.c	(revision 17464)
+++ trunk/src_plugins/dialogs/dlg_about.c	(revision 17465)
@@ -59,7 +59,7 @@
 
 static const char pcb_acts_About[] = "About()\n";
 static const char pcb_acth_About[] = "Present the about box";
-static fgw_error_t pcb_act_About(int oargc, const char **oargv)
+static fgw_error_t pcb_act_About(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_dlg_about();
Index: trunk/src_plugins/dialogs/dlg_flag_edit.c
===================================================================
--- trunk/src_plugins/dialogs/dlg_flag_edit.c	(revision 17464)
+++ trunk/src_plugins/dialogs/dlg_flag_edit.c	(revision 17465)
@@ -75,7 +75,7 @@
 
 static const char pcb_acts_FlagEdit[] = "FlagEdit(object)\n";
 static const char pcb_acth_FlagEdit[] = "Change the layer binding.";
-static fgw_error_t pcb_act_FlagEdit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_FlagEdit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	fe_ctx_t ctx;
Index: trunk/src_plugins/dialogs/dlg_layer_binding.c
===================================================================
--- trunk/src_plugins/dialogs/dlg_layer_binding.c	(revision 17464)
+++ trunk/src_plugins/dialogs/dlg_layer_binding.c	(revision 17465)
@@ -188,7 +188,7 @@
 
 static const char pcb_acts_LayerBinding[] = "LayerBinding(object)\nLayerBinding(selected)\nLayerBinding(buffer)\n";
 static const char pcb_acth_LayerBinding[] = "Change the layer binding.";
-static fgw_error_t pcb_act_LayerBinding(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LayerBinding(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	lb_ctx_t ctx;
Index: trunk/src_plugins/dialogs/dlg_padstack.c
===================================================================
--- trunk/src_plugins/dialogs/dlg_padstack.c	(revision 17464)
+++ trunk/src_plugins/dialogs/dlg_padstack.c	(revision 17465)
@@ -579,7 +579,7 @@
 
 static const char pcb_acts_PadstackEdit[] = "PadstackEdit(object)\n";
 static const char pcb_acth_PadstackEdit[] = "interactive pad stack editor";
-static fgw_error_t pcb_act_PadstackEdit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PadstackEdit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int n, target_tab = -1;
Index: trunk/src_plugins/dialogs/dlg_test.c
===================================================================
--- trunk/src_plugins/dialogs/dlg_test.c	(revision 17464)
+++ trunk/src_plugins/dialogs/dlg_test.c	(revision 17465)
@@ -38,7 +38,7 @@
 static void cb_jump(void *hid_ctx, void *caller_data, pcb_hid_attribute_t *attr);
 
 static int attr_idx, attr_idx2;
-static fgw_error_t pcb_act_dlg_test(int oargc, const char **oargv)
+static fgw_error_t pcb_act_dlg_test(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *vals[] = { "foo", "bar", "baz", NULL };
Index: trunk/src_plugins/distalign/distalign.c
===================================================================
--- trunk/src_plugins/distalign/distalign.c	(revision 17464)
+++ trunk/src_plugins/distalign/distalign.c	(revision 17465)
@@ -255,7 +255,7 @@
  * Defaults are Marks, First.
  */
 static const char pcb_acts_align[] = "Align(X/Y, [Lefts/Rights/Tops/Bottoms/Centers/Marks, [First/Last/pcb_crosshair/Average[, Gridless]]])";
-static fgw_error_t pcb_act_align(int oargc, const char **oargv)
+static fgw_error_t pcb_act_align(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int dir;
@@ -379,7 +379,7 @@
  * before they were distributed.
  */
 static const char pcb_acts_distribute[] = "Distribute(X/Y, [Lefts/Rights/Tops/Bottoms/Centers/Marks/Gaps, [First/Last/pcb_crosshair, First/Last/pcb_crosshair[, Gridless]]])";
-static fgw_error_t pcb_act_distribute(int oargc, const char **oargv)
+static fgw_error_t pcb_act_distribute(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int dir;
Index: trunk/src_plugins/distaligntext/distaligntext.c
===================================================================
--- trunk/src_plugins/distaligntext/distaligntext.c	(revision 17464)
+++ trunk/src_plugins/distaligntext/distaligntext.c	(revision 17465)
@@ -273,7 +273,7 @@
  *
  * Defaults are Lefts/Tops, First */
 static const char pcb_acts_aligntext[] = "AlignText(X/Y, [Lefts/Rights/Tops/Bottoms/Centers, [First/Last/pcb_crosshair/Average[, Gridless]]])";
-static fgw_error_t pcb_act_aligntext(int oargc, const char **oargv)
+static fgw_error_t pcb_act_aligntext(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int dir;
@@ -432,7 +432,7 @@
    Distributed texts always retain the same relative order they had
    before they were distributed. */
 static const char pcb_acts_distributetext[] = "DistributeText(Y, [Lefts/Rights/Tops/Bottoms/Centers/Gaps, [First/Last/pcb_crosshair, First/Last/pcb_crosshair[, Gridless]]])";
-static fgw_error_t pcb_act_distributetext(int oargc, const char **oargv)
+static fgw_error_t pcb_act_distributetext(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int dir;
Index: trunk/src_plugins/djopt/djopt.c
===================================================================
--- trunk/src_plugins/djopt/djopt.c	(revision 17464)
+++ trunk/src_plugins/djopt/djopt.c	(revision 17465)
@@ -2491,7 +2491,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_DJopt(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DJopt(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *arg = argc > 0 ? argv[0] : NULL;
Index: trunk/src_plugins/draw_csect/draw_csect.c
===================================================================
--- trunk/src_plugins/draw_csect/draw_csect.c	(revision 17464)
+++ trunk/src_plugins/draw_csect/draw_csect.c	(revision 17465)
@@ -834,7 +834,7 @@
 static const char pcb_acts_dump_csect[] = "DumpCsect()";
 static const char pcb_acth_dump_csect[] = "Print the cross-section of the board (layer stack)";
 
-static fgw_error_t pcb_act_dump_csect(int oargc, const char **oargv)
+static fgw_error_t pcb_act_dump_csect(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_layergrp_id_t gid;
Index: trunk/src_plugins/expfeat/expfeat.c
===================================================================
--- trunk/src_plugins/expfeat/expfeat.c	(revision 17464)
+++ trunk/src_plugins/expfeat/expfeat.c	(revision 17465)
@@ -40,7 +40,7 @@
 /* %start-doc actions Debug
 This action is a template, copy and rename this to create new actions.
 %end-doc */
-static fgw_error_t pcb_act_ExpFeatTmp(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ExpFeatTmp(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_INFO, "Hello world from expfeat!\n");
Index: trunk/src_plugins/export_openems/mesh.c
===================================================================
--- trunk/src_plugins/export_openems/mesh.c	(revision 17464)
+++ trunk/src_plugins/export_openems/mesh.c	(revision 17465)
@@ -895,7 +895,7 @@
 
 const char pcb_acts_mesh[] = "mesh()";
 const char pcb_acth_mesh[] = "generate a mesh for simulation";
-fgw_error_t pcb_act_mesh(int oargc, const char **oargv)
+fgw_error_t pcb_act_mesh(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_mesh_interactive();
Index: trunk/src_plugins/export_openems/mesh.h
===================================================================
--- trunk/src_plugins/export_openems/mesh.h	(revision 17464)
+++ trunk/src_plugins/export_openems/mesh.h	(revision 17465)
@@ -34,7 +34,7 @@
 
 extern const char pcb_acts_mesh[];
 extern const char pcb_acth_mesh[];
-fgw_error_t pcb_act_mesh(int argc, const char **argv);
+fgw_error_t pcb_act_mesh(fgw_arg_t *res, int oargc, fgw_arg_t *oargv);
 
 /* Get one of the configured meshes */
 pcb_mesh_t *pcb_mesg_get(const char *name);
Index: trunk/src_plugins/export_openscad/export_openscad.c
===================================================================
--- trunk/src_plugins/export_openscad/export_openscad.c	(revision 17464)
+++ trunk/src_plugins/export_openscad/export_openscad.c	(revision 17465)
@@ -597,7 +597,7 @@
 
 static const char pcb_acts_scad_export_poly[] = "ScadExportPoly(filename)\n";
 static const char pcb_acth_scad_export_poly[] = "exports all selected polygons to an openscad script; only the outmost contour of each poly is exported";
-static fgw_error_t pcb_act_scad_export_poly(int oargc, const char **oargv)
+static fgw_error_t pcb_act_scad_export_poly(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	FILE *f;
Index: trunk/src_plugins/export_ps/ps.c
===================================================================
--- trunk/src_plugins/export_ps/ps.c	(revision 17464)
+++ trunk/src_plugins/export_ps/ps.c	(revision 17465)
@@ -1448,7 +1448,7 @@
 {
 }
 
-static fgw_error_t pcb_act_PSCalib(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PSCalib(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	ps_calibrate(0.0, 0.0);
Index: trunk/src_plugins/extedit/extedit.c
===================================================================
--- trunk/src_plugins/extedit/extedit.c	(revision 17464)
+++ trunk/src_plugins/extedit/extedit.c	(revision 17465)
@@ -168,7 +168,7 @@
 
 static const char pcb_acts_extedit[] = "extedit(object|selected, [interactive|method])\n";
 static const char pcb_acth_extedit[] = "Invoke an external program to edit a specific part of the current board.";
-static fgw_error_t pcb_act_extedit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_extedit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	long type;
Index: trunk/src_plugins/fontmode/fontmode.c
===================================================================
--- trunk/src_plugins/fontmode/fontmode.c	(revision 17464)
+++ trunk/src_plugins/fontmode/fontmode.c	(revision 17465)
@@ -100,7 +100,7 @@
 	pcb_poly_invalidate_draw(layer, np);
 }
 
-static fgw_error_t pcb_act_FontEdit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_FontEdit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_font_t *font;
@@ -240,7 +240,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_FontSave(int oargc, const char **oargv)
+static fgw_error_t pcb_act_FontSave(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_font_t *font;
Index: trunk/src_plugins/gpmi/pcb-gpmi/gpmi_plugin/gpmi_pkg/actions/actions.c
===================================================================
--- trunk/src_plugins/gpmi/pcb-gpmi/gpmi_plugin/gpmi_pkg/actions/actions.c	(revision 17464)
+++ trunk/src_plugins/gpmi/pcb-gpmi/gpmi_plugin/gpmi_pkg/actions/actions.c	(revision 17465)
@@ -31,7 +31,7 @@
 }
 
 
-static fgw_error_t pcb_act_action_cb(int oargc, const char **oargv)
+static fgw_error_t pcb_act_action_cb(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	acontext_t *ctx = (acontext_t *)pcb_current_action;
Index: trunk/src_plugins/gpmi/pcb-gpmi/gpmi_plugin/gpmi_plugin.c
===================================================================
--- trunk/src_plugins/gpmi/pcb-gpmi/gpmi_plugin/gpmi_plugin.c	(revision 17464)
+++ trunk/src_plugins/gpmi/pcb-gpmi/gpmi_plugin/gpmi_plugin.c	(revision 17465)
@@ -84,7 +84,7 @@
 	}
 }
 
-static fgw_error_t pcb_act_gpmi_scripts(int oargc, const char **oargv)
+static fgw_error_t pcb_act_gpmi_scripts(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc == 0) {
@@ -132,7 +132,7 @@
 	PCB_OLD_ACT_END;
 }
 
-static fgw_error_t pcb_act_gpmi_rehash(int oargc, const char **oargv)
+static fgw_error_t pcb_act_gpmi_rehash(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	cmd_reload(NULL);
Index: trunk/src_plugins/hid_batch/batch.c
===================================================================
--- trunk/src_plugins/hid_batch/batch.c	(revision 17464)
+++ trunk/src_plugins/hid_batch/batch.c	(revision 17465)
@@ -79,7 +79,7 @@
 		prompt = pcb_strdup("no-board");
 }
 
-static fgw_error_t pcb_act_help(int oargc, const char **oargv)
+static fgw_error_t pcb_act_help(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_print_actions();
@@ -87,7 +87,7 @@
 	PCB_OLD_ACT_END;
 }
 
-static fgw_error_t pcb_act_info(int oargc, const char **oargv)
+static fgw_error_t pcb_act_info(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int i, j;
Index: trunk/src_plugins/hid_lesstif/dialogs.c
===================================================================
--- trunk/src_plugins/hid_lesstif/dialogs.c	(revision 17464)
+++ trunk/src_plugins/hid_lesstif/dialogs.c	(revision 17465)
@@ -120,7 +120,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Load(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Load(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function;
@@ -180,7 +180,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LoadVendor(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadVendor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char *name;
@@ -234,7 +234,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Save(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Save(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function;
@@ -460,7 +460,7 @@
 	return ok;
 }
 
-static fgw_error_t pcb_act_ConfirmAction(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ConfirmAction(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int rv = lesstif_confirm_dialog(argc > 0 ? argv[0] : 0,
@@ -585,7 +585,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_PromptFor(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PromptFor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char *rv = lesstif_prompt_for(argc > 0 ? argv[0] : 0,
@@ -1285,7 +1285,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_DoWindows(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DoWindows(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *a = argc == 1 ? argv[0] : "";
@@ -1323,7 +1323,7 @@
 %end-doc */
 
 
-static fgw_error_t pcb_act_About(int oargc, const char **oargv)
+static fgw_error_t pcb_act_About(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	static Widget about = 0;
@@ -1355,7 +1355,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Print(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Print(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_hid_attribute_t *opts;
@@ -1391,7 +1391,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ExportGUI(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ExportGUI(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	static Widget selector = 0;
@@ -1563,7 +1563,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_AdjustSizes(int oargc, const char **oargv)
+static fgw_error_t pcb_act_AdjustSizes(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (!sizes_dialog) {
@@ -1659,7 +1659,7 @@
 %end-doc */
 
 extern void lesstif_show_layergrp_edit(void);
-static fgw_error_t pcb_act_EditLayerGroups(int oargc, const char **oargv)
+static fgw_error_t pcb_act_EditLayerGroups(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	lesstif_show_layergrp_edit();
@@ -1671,7 +1671,7 @@
 static const char pcb_acts_fontsel[] = "EditLayerGroups()";
 static const char pcb_acth_fontsel[] = "Let the user change fonts";
 extern void lesstif_show_fontsel_edit(pcb_layer_t *txtly, pcb_text_t *txt, int type);
-static fgw_error_t pcb_act_fontsel(int oargc, const char **oargv)
+static fgw_error_t pcb_act_fontsel(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc > 1)
@@ -2007,7 +2007,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ImportGUI(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ImportGUI(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	static int I_am_recursing = 0;
Index: trunk/src_plugins/hid_lesstif/library.c
===================================================================
--- trunk/src_plugins/hid_lesstif/library.c	(revision 17464)
+++ trunk/src_plugins/hid_lesstif/library.c	(revision 17465)
@@ -169,7 +169,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LibraryShow(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LibraryShow(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (build_library_dialog())
Index: trunk/src_plugins/hid_lesstif/main.c
===================================================================
--- trunk/src_plugins/hid_lesstif/main.c	(revision 17464)
+++ trunk/src_plugins/hid_lesstif/main.c	(revision 17465)
@@ -435,7 +435,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Zoom(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Zoom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -509,7 +509,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ZoomTo(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ZoomTo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x1, y1, x2, y2;
@@ -542,7 +542,7 @@
 
 static int pan_thumb_mode;
 
-static fgw_error_t pcb_act_Pan(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Pan(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -616,7 +616,7 @@
 }
 
 #warning TODO: ui_zoomplan.c does the same, maybe make the code common?
-static fgw_error_t pcb_act_SwapSides(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SwapSides(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int old_shown_side = conf_core.editor.show_solder_side;
@@ -775,7 +775,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Command(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Command(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	XtManageChild(m_cmd_label);
@@ -797,7 +797,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Benchmark(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Benchmark(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int i = 0;
@@ -833,7 +833,7 @@
 	PCB_OLD_ACT_END;
 }
 
-static fgw_error_t pcb_act_Center(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Center(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
Index: trunk/src_plugins/hid_lesstif/netlist.c
===================================================================
--- trunk/src_plugins/hid_lesstif/netlist.c	(revision 17464)
+++ trunk/src_plugins/hid_lesstif/netlist.c	(revision 17465)
@@ -373,7 +373,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LesstifNetlistShow(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LesstifNetlistShow(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (build_netlist_dialog())
Index: trunk/src_plugins/hid_lesstif/styles.c
===================================================================
--- trunk/src_plugins/hid_lesstif/styles.c	(revision 17464)
+++ trunk/src_plugins/hid_lesstif/styles.c	(revision 17465)
@@ -311,7 +311,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_AdjustStyle(int oargc, const char **oargv)
+static fgw_error_t pcb_act_AdjustStyle(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if ((!mainwind) || (PCB->RouteStyle.array == NULL))
Index: trunk/src_plugins/import_dsn/dsn.c
===================================================================
--- trunk/src_plugins/import_dsn/dsn.c	(revision 17464)
+++ trunk/src_plugins/import_dsn/dsn.c	(revision 17465)
@@ -206,7 +206,7 @@
 
 static const char load_dsn_help[] = "Loads the specified routed dsn file.";
 
-fgw_error_t pcb_act_LoadDsnFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadDsnFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/import_hpgl/hpgl.c
===================================================================
--- trunk/src_plugins/import_hpgl/hpgl.c	(revision 17464)
+++ trunk/src_plugins/import_hpgl/hpgl.c	(revision 17465)
@@ -149,7 +149,7 @@
 
 static const char pcb_acts_LoadHpglFrom[] = "LoadHpglFrom(filename)";
 static const char pcb_acth_LoadHpglFrom[] = "Loads the specified hpgl plot file to the current buffer";
-fgw_error_t pcb_act_LoadHpglFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadHpglFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/import_ipcd356/ipcd356.c
===================================================================
--- trunk/src_plugins/import_ipcd356/ipcd356.c	(revision 17464)
+++ trunk/src_plugins/import_ipcd356/ipcd356.c	(revision 17465)
@@ -355,7 +355,7 @@
 
 static const char pcb_acts_LoadIpc356From[] = "LoadIpc356From(filename, [nonet], [nopad], [nosubc])";
 static const char pcb_acth_LoadIpc356From[] = "Loads the specified IPC356-D netlist";
-fgw_error_t pcb_act_LoadIpc356From(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadIpc356From(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	FILE *f;
Index: trunk/src_plugins/import_ltspice/ltspice.c
===================================================================
--- trunk/src_plugins/import_ltspice/ltspice.c	(revision 17464)
+++ trunk/src_plugins/import_ltspice/ltspice.c	(revision 17465)
@@ -266,7 +266,7 @@
 
 static const char pcb_acts_LoadLtspiceFrom[] = "LoadLtspiceFrom(filename)";
 static const char pcb_acth_LoadLtspiceFrom[] = "Loads the specified ltspice .net and .asc file - the netlist must be mentor netlist.";
-fgw_error_t pcb_act_LoadLtspiceFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadLtspiceFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL, *end;
Index: trunk/src_plugins/import_mentor_sch/mentor_sch.c
===================================================================
--- trunk/src_plugins/import_mentor_sch/mentor_sch.c	(revision 17464)
+++ trunk/src_plugins/import_mentor_sch/mentor_sch.c	(revision 17465)
@@ -257,7 +257,7 @@
 
 static const char pcb_acts_Loadmentor_schFrom[] = "LoadMentorFrom(filename)";
 static const char pcb_acth_Loadmentor_schFrom[] = "Loads the specified Mentor Graphics Design Capture schematics flat .edf file.";
-fgw_error_t pcb_act_LoadMentorFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadMentorFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/import_mucs/mucs.c
===================================================================
--- trunk/src_plugins/import_mucs/mucs.c	(revision 17464)
+++ trunk/src_plugins/import_mucs/mucs.c	(revision 17465)
@@ -56,7 +56,7 @@
 
 static const char pcb_acts_LoadMucsFrom[] = "LoadMucsFrom(filename)";
 static const char pcb_acth_LoadMucsFrom[] = "Loads the specified mucs routing file.";
-fgw_error_t pcb_act_LoadMucsFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadMucsFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/import_sch/import_sch.c
===================================================================
--- trunk/src_plugins/import_sch/import_sch.c	(revision 17464)
+++ trunk/src_plugins/import_sch/import_sch.c	(revision 17465)
@@ -60,7 +60,7 @@
 
 conf_import_sch_t conf_import_sch;
 
-extern fgw_error_t pcb_act_ExecuteFile(int oargc, const char **oargv);
+extern fgw_error_t pcb_act_ExecuteFile(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 /* ---------------------------------------------------------------- */
 static const char pcb_acts_Import[] =
@@ -178,12 +178,13 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Import(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Import(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *mode;
 	const char **sources = NULL;
 	int nsources = 0;
+	fgw_arg_t res;
 
 	if (conf_import_sch.plugins.import_sch.verbose)
 		pcb_message(PCB_MSG_DEBUG, "pcb_act_Import:  ===  Entering pcb_act_Import  ===\n");
@@ -360,9 +361,7 @@
 		if (conf_import_sch.plugins.import_sch.verbose)
 			pcb_message(PCB_MSG_DEBUG, "pcb_act_Import:  about to run pcb_act_ExecuteFile, file = %s\n", tmpfile);
 
-		cmd[0] = tmpfile;
-		cmd[1] = NULL;
-		pcb_act_ExecuteFile(1, cmd);
+		fgw_vcall(&pcb_fgw, &res, "ExecuteFile", FGW_STR, tmpfile, 0);
 
 		for(i = 0; i < nsources; i++)
 			free((char *) cmd[8 + i]);
@@ -436,9 +435,7 @@
 			return 1;
 		}
 
-		cmd[0] = tmpfile;
-		cmd[1] = NULL;
-		pcb_act_ExecuteFile(1, cmd);
+		fgw_vcall(&pcb_fgw, &res, "ExecuteFile", FGW_STR, tmpfile, 0);
 
 		free((char*)cmd[2]);
 		free((char*)cmd[3]);
Index: trunk/src_plugins/import_tinycad/tinycad.c
===================================================================
--- trunk/src_plugins/import_tinycad/tinycad.c	(revision 17464)
+++ trunk/src_plugins/import_tinycad/tinycad.c	(revision 17465)
@@ -172,7 +172,7 @@
 
 static const char pcb_acts_LoadtinycadFrom[] = "LoadTinycadFrom(filename)";
 static const char pcb_acth_LoadtinycadFrom[] = "Loads the specified tinycad .net file - the netlist must be tinycad netlist output.";
-fgw_error_t pcb_act_LoadtinycadFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadtinycadFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/io_hyp/io_hyp.c
===================================================================
--- trunk/src_plugins/io_hyp/io_hyp.c	(revision 17464)
+++ trunk/src_plugins/io_hyp/io_hyp.c	(revision 17465)
@@ -70,7 +70,7 @@
 
 static const char load_hyp_help[] = "Loads the specified Hyperlynx file.";
 
-fgw_error_t pcb_act_LoadhypFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadhypFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/io_kicad/read_net.c
===================================================================
--- trunk/src_plugins/io_kicad/read_net.c	(revision 17464)
+++ trunk/src_plugins/io_kicad/read_net.c	(revision 17465)
@@ -216,7 +216,7 @@
 
 const char pcb_acts_LoadeeschemaFrom[] = "LoadEeschemaFrom(filename)";
 const char pcb_acth_LoadeeschemaFrom[] = "Loads the specified eeschema .net file - the netlist must be an s-expression.";
-fgw_error_t pcb_act_LoadeeschemaFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadeeschemaFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;
Index: trunk/src_plugins/io_kicad/read_net.h
===================================================================
--- trunk/src_plugins/io_kicad/read_net.h	(revision 17464)
+++ trunk/src_plugins/io_kicad/read_net.h	(revision 17465)
@@ -3,5 +3,5 @@
 
 extern const char pcb_acts_LoadeeschemaFrom[];
 extern const char pcb_acth_LoadeeschemaFrom[];
-fgw_error_t pcb_act_LoadeeschemaFrom(int oargc, const char **oargv);
+fgw_error_t pcb_act_LoadeeschemaFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
Index: trunk/src_plugins/io_tedax/io_tedax.c
===================================================================
--- trunk/src_plugins/io_tedax/io_tedax.c	(revision 17464)
+++ trunk/src_plugins/io_tedax/io_tedax.c	(revision 17465)
@@ -64,7 +64,7 @@
 
 static const char pcb_acts_Savetedax[] = "SaveTedax(type, filename)";
 static const char pcb_acth_Savetedax[] = "Saves the specific type of data in a tEDAx file. Type can be: board-footprints";
-static fgw_error_t pcb_act_Savetedax(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Savetedax(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname, *type = argv[0];
@@ -98,7 +98,7 @@
 
 static const char pcb_acts_LoadtedaxFrom[] = "LoadTedaxFrom(type, filename)";
 static const char pcb_acth_LoadtedaxFrom[] = "Loads the specified block from a tedax file. Type can be: netlist or footprint.";
-static fgw_error_t pcb_act_LoadtedaxFrom(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadtedaxFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname, *type = argv[0];
Index: trunk/src_plugins/jostle/jostle.c
===================================================================
--- trunk/src_plugins/jostle/jostle.c	(revision 17464)
+++ trunk/src_plugins/jostle/jostle.c	(revision 17465)
@@ -469,7 +469,7 @@
 }
 
 static const char pcb_acts_jostle[] = "Jostle(diameter)";
-static fgw_error_t pcb_act_jostle(int oargc, const char **oargv)
+static fgw_error_t pcb_act_jostle(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
Index: trunk/src_plugins/lib_gtk_common/act_fileio.c
===================================================================
--- trunk/src_plugins/lib_gtk_common/act_fileio.c	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/act_fileio.c	(revision 17465)
@@ -58,7 +58,7 @@
 	return pcb_strdup(getcwd(tmp, sizeof(tmp)));
 }
 
-fgw_error_t pcb_gtk_act_load(GtkWidget *top_window, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_load(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function;
@@ -120,7 +120,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_gtk_act_save(GtkWidget *top_window, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_save(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function;
@@ -267,7 +267,7 @@
 
 const char pcb_gtk_acts_importgui[] = "ImportGUI()";
 const char pcb_gtk_acth_importgui[] = N_("Asks user which schematics to import into PCB.\n");
-fgw_error_t pcb_gtk_act_importgui(GtkWidget *top_window, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_importgui(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char *name = NULL;
Index: trunk/src_plugins/lib_gtk_common/act_fileio.h
===================================================================
--- trunk/src_plugins/lib_gtk_common/act_fileio.h	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/act_fileio.h	(revision 17465)
@@ -2,12 +2,12 @@
 #include <libfungw/fungw.h>
 #include "unit.h"
 
-fgw_error_t pcb_gtk_act_load(GtkWidget *top_window, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_load(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 extern const char pcb_gtk_acts_save[];
 extern const char pcb_gtk_acth_save[];
-fgw_error_t pcb_gtk_act_save(GtkWidget *top_window, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_save(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 extern const char pcb_gtk_acts_importgui[];
 extern const char pcb_gtk_acth_importgui[];
-fgw_error_t pcb_gtk_act_importgui(GtkWidget *top_window, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_importgui(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
Index: trunk/src_plugins/lib_gtk_common/act_print.c
===================================================================
--- trunk/src_plugins/lib_gtk_common/act_print.c	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/act_print.c	(revision 17465)
@@ -43,7 +43,7 @@
 
 const char pcb_gtk_acts_print[] = "Print()";
 const char pcb_gtk_acth_print[] = N_("Print the layout.");
-fgw_error_t pcb_gtk_act_print(GtkWidget *top_window, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_print(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_hid_t **hids;
Index: trunk/src_plugins/lib_gtk_common/act_print.h
===================================================================
--- trunk/src_plugins/lib_gtk_common/act_print.h	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/act_print.h	(revision 17465)
@@ -3,9 +3,9 @@
 
 extern const char pcb_gtk_acts_print[];
 extern const char pcb_gtk_acth_print[];
-fgw_error_t pcb_gtk_act_print(GtkWidget *top_window, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_print(GtkWidget *top_window, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 extern const char pcb_gtk_acts_printcalibrate[];
 extern const char pcb_gtk_acth_printcalibrate[];
-fgw_error_t pcb_gtk_act_printcalibrate(int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_printcalibrate(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
Index: trunk/src_plugins/lib_gtk_common/dlg_log.c
===================================================================
--- trunk/src_plugins/lib_gtk_common/dlg_log.c	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/dlg_log.c	(revision 17465)
@@ -171,7 +171,7 @@
 
 const char pcb_gtk_acts_logshowonappend[] = "LogShowOnAppend(true|false)";
 const char pcb_gtk_acth_logshowonappend[] = "If true, the log window will be shown whenever something is appended to it. If false, the log will still be updated, but the window won't be shown.";
-fgw_error_t pcb_gtk_act_logshowonappend(int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_logshowonappend(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *a = argc == 1 ? argv[0] : "";
Index: trunk/src_plugins/lib_gtk_common/dlg_log.h
===================================================================
--- trunk/src_plugins/lib_gtk_common/dlg_log.h	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/dlg_log.h	(revision 17465)
@@ -15,6 +15,6 @@
 /* Actions */
 extern const char pcb_gtk_acts_logshowonappend[];
 extern const char pcb_gtk_acth_logshowonappend[];
-fgw_error_t pcb_gtk_act_logshowonappend(int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_logshowonappend(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 #endif /* PCB_GTK_DLG_LOG_H */
Index: trunk/src_plugins/lib_gtk_common/dlg_netlist.c
===================================================================
--- trunk/src_plugins/lib_gtk_common/dlg_netlist.c	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/dlg_netlist.c	(revision 17465)
@@ -915,7 +915,7 @@
 
 const char pcb_gtk_acts_netlistshow[] = "NetlistShow(pinname|netname)";
 const char pcb_gtk_acth_netlistshow[] = "Selects the given pinname or netname in the netlist window. Does not show the window if it isn't already shown.";
-fgw_error_t pcb_gtk_act_netlistshow(pcb_gtk_common_t *com, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_netlistshow(pcb_gtk_common_t *com, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	ghid_netlist_window_create(com);
@@ -927,7 +927,7 @@
 
 const char pcb_gtk_acts_netlistpresent[] = "NetlistPresent()";
 const char pcb_gtk_acth_netlistpresent[] = "Presents the netlist window.";
-fgw_error_t pcb_gtk_act_netlistpresent(pcb_gtk_common_t *com, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_netlistpresent(pcb_gtk_common_t *com, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_gtk_dlg_netlist_show(com, TRUE);
Index: trunk/src_plugins/lib_gtk_common/dlg_netlist.h
===================================================================
--- trunk/src_plugins/lib_gtk_common/dlg_netlist.h	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/dlg_netlist.h	(revision 17465)
@@ -19,10 +19,10 @@
 /* Actions */
 extern const char pcb_gtk_acts_netlistshow[];
 extern const char pcb_gtk_acth_netlistshow[];
-fgw_error_t pcb_gtk_act_netlistshow(pcb_gtk_common_t *com, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_netlistshow(pcb_gtk_common_t *com, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 extern const char pcb_gtk_acts_netlistpresent[];
 extern const char pcb_gtk_acth_netlistpresent[];
-fgw_error_t pcb_gtk_act_netlistpresent(pcb_gtk_common_t *com, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_netlistpresent(pcb_gtk_common_t *com, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 #endif /* PCB_GTK_DLG_NETLIST_H */
Index: trunk/src_plugins/lib_gtk_common/ui_zoompan.c
===================================================================
--- trunk/src_plugins/lib_gtk_common/ui_zoompan.c	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/ui_zoompan.c	(revision 17465)
@@ -364,7 +364,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_gtk_act_center(pcb_gtk_view_t *vw, int oargc, const char **oargv, pcb_coord_t pcb_x, pcb_coord_t pcb_y, int offset_x, int offset_y, int *out_pointer_x, int *out_pointer_y)
+fgw_error_t pcb_gtk_act_center(pcb_gtk_view_t *vw, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv, pcb_coord_t pcb_x, pcb_coord_t pcb_y, int offset_x, int offset_y, int *out_pointer_x, int *out_pointer_y)
 {
 	PCB_OLD_ACT_BEGIN;
 	int widget_x, widget_y;
@@ -499,7 +499,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_gtk_act_scroll(pcb_gtk_view_t *vw, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_scroll(pcb_gtk_view_t *vw, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	gdouble dx = 0.0, dy = 0.0;
@@ -539,7 +539,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_gtk_act_pan(pcb_gtk_view_t *vw, int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_pan(pcb_gtk_view_t *vw, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int mode;
Index: trunk/src_plugins/lib_gtk_common/ui_zoompan.h
===================================================================
--- trunk/src_plugins/lib_gtk_common/ui_zoompan.h	(revision 17464)
+++ trunk/src_plugins/lib_gtk_common/ui_zoompan.h	(revision 17465)
@@ -97,7 +97,7 @@
 
 extern const char pcb_acts_center[];
 extern const char pcb_acth_center[];
-fgw_error_t pcb_gtk_act_center(pcb_gtk_view_t *vw, int oargc, const char **oargv, pcb_coord_t pcb_x, pcb_coord_t pcb_y, int offset_x, int offset_y, int *out_pointer_x, int *out_pointer_y);
+fgw_error_t pcb_gtk_act_center(pcb_gtk_view_t *vw, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv, pcb_coord_t pcb_x, pcb_coord_t pcb_y, int offset_x, int offset_y, int *out_pointer_x, int *out_pointer_y);
 
 extern const char pcb_acts_swapsides[];
 extern const char pcb_acth_swapsides[];
@@ -105,11 +105,11 @@
 
 extern const char pcb_acts_scroll[];
 extern const char pcb_acth_scroll[];
-fgw_error_t pcb_gtk_act_scroll(pcb_gtk_view_t *vw, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_scroll(pcb_gtk_view_t *vw, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 extern const char pcb_acts_pan[];
 extern const char pcb_acth_pan[];
-fgw_error_t pcb_gtk_act_pan(pcb_gtk_view_t *vw, int oargc, const char **oargv);
+fgw_error_t pcb_gtk_act_pan(pcb_gtk_view_t *vw, fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 void pcb_gtk_get_coords(pcb_gtk_mouse_t *mouse, pcb_gtk_view_t *vw, const char *msg, pcb_coord_t * x, pcb_coord_t * y);
 
Index: trunk/src_plugins/lib_gtk_hid/actions.c
===================================================================
--- trunk/src_plugins/lib_gtk_hid/actions.c	(revision 17464)
+++ trunk/src_plugins/lib_gtk_hid/actions.c	(revision 17465)
@@ -70,15 +70,13 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_AdjustStyle(int oargc, const char **oargv)
+static fgw_error_t pcb_act_AdjustStyle(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	PCB_OLD_ACT_BEGIN;
-	if (argc > 1)
+	if (argc > 2)
 		PCB_ACT_FAIL(AdjustStyle);
 
-  pcb_gtk_route_style_edit_dialog(&ghidgui->common, GHID_ROUTE_STYLE(ghidgui->topwin.route_style_selector));
+	pcb_gtk_route_style_edit_dialog(&ghidgui->common, GHID_ROUTE_STYLE(ghidgui->topwin.route_style_selector));
 	return 0;
-	PCB_OLD_ACT_END;
 }
 
 /* ------------------------------------------------------------ */
@@ -85,7 +83,7 @@
 
 static const char pcb_acts_fontsel[] = "FontSel()\n";
 static const char pcb_acth_fontsel[] = "Select the font to draw new text with.";
-static fgw_error_t pcb_act_fontsel(int oargc, const char **oargv)
+static fgw_error_t pcb_act_fontsel(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc > 1)
@@ -113,7 +111,7 @@
 
 /* ---------------------------------------------------------------------- */
 
-static fgw_error_t pcb_act_Command(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Command(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	ghid_handle_user_command(&ghidgui->topwin.cmd, TRUE);
@@ -123,14 +121,14 @@
 
 /* ------------------------------------------------------------ */
 
-fgw_error_t  pcb_gtk_act_print_(int oargc, const char **oargv)
+fgw_error_t pcb_gtk_act_print_(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	return pcb_gtk_act_print(gport->top_window, oargc, oargv);
+	return pcb_gtk_act_print(gport->top_window, res, argc, argv);
 }
 
 /* ------------------------------------------------------------ */
 
-static fgw_error_t pcb_act_ExportGUI(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ExportGUI(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	/* check if layout is empty */
@@ -146,7 +144,7 @@
 
 /* ------------------------------------------------------------ */
 
-static fgw_error_t pcb_act_Benchmark(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Benchmark(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int i = 0;
@@ -218,7 +216,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_DoWindows(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DoWindows(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *a = argc >= 1 ? argv[0] : "";
@@ -275,7 +273,7 @@
 in the popups subtree in the menu lht file.
 
 %end-doc */
-static fgw_error_t pcb_act_Popup(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Popup(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	GtkWidget *menu = NULL;
@@ -347,7 +345,7 @@
 
 static const char pcb_acth_SaveWinGeo[] = N_("Saves window geometry in the config.\n");
 
-static fgw_error_t pcb_act_SaveWinGeo(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SaveWinGeo(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	ghid_wgeo_save(1, 0);
@@ -357,7 +355,7 @@
 
 
 /* ------------------------------------------------------------ */
-static fgw_error_t pcb_act_Zoom(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Zoom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	return pcb_gtk_zoom(&gport->view, argc, argv);
@@ -364,9 +362,9 @@
 	PCB_OLD_ACT_END;
 }
 
-static fgw_error_t pcb_act_Center(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Center(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	PCB_OLD_ACT_BEGIN;
+	fgw_error_t e;
 	pcb_coord_t x, y;
 	int offset_x, offset_y, pointer_x, pointer_y;
 	GdkDisplay *display = gdk_display_get_default();
@@ -375,13 +373,12 @@
 	pcb_hid_get_coords("Click to center", &x, &y);
 
 	gdk_window_get_origin(gtk_widget_get_window(gport->drawing_area), &offset_x, &offset_y);
-	pcb_gtk_act_center(&gport->view, argc, argv, x, y, offset_x, offset_y, &pointer_x, &pointer_y);
+	e = pcb_gtk_act_center(&gport->view, res, argc, argv, x, y, offset_x, offset_y, &pointer_x, &pointer_y);
 	gdk_display_warp_pointer(display, screen, pointer_x, pointer_y);
-	return 0;
-	PCB_OLD_ACT_END;
+	return e;
 }
 
-static fgw_error_t pcb_act_SwapSides(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SwapSides(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int res, oa;
@@ -397,46 +394,46 @@
 	PCB_OLD_ACT_END;
 }
 
-static fgw_error_t pcb_act_Scroll(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Scroll(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
 	if (ghidgui == NULL)
 		return 0;
 
-	return pcb_gtk_act_scroll(&gport->view, oargc, oargv);
+	return pcb_gtk_act_scroll(&gport->view, res, argc, argv);
 }
 
-static fgw_error_t pcb_act_Pan(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Pan(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
 	if (ghidgui == NULL)
 		return 0;
 
-	return pcb_gtk_act_pan(&gport->view, oargc, oargv);
+	return pcb_gtk_act_pan(&gport->view, res, argc, argv);
 }
 
-static fgw_error_t pcb_act_NetlistShow(int oargc, const char **oargv)
+static fgw_error_t pcb_act_NetlistShow(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	return pcb_gtk_act_netlistshow(&ghidgui->common, oargc, oargv);
+	return pcb_gtk_act_netlistshow(&ghidgui->common, res, argc, argv);
 }
 
-static fgw_error_t pcb_act_NetlistPresent(int oargc, const char **oargv)
+static fgw_error_t pcb_act_NetlistPresent(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	return pcb_gtk_act_netlistpresent(&ghidgui->common, oargc, oargv);
+	return pcb_gtk_act_netlistpresent(&ghidgui->common, res, argc, argv);
 }
 
 
-static fgw_error_t pcb_act_load(int oargc, const char **oargv)
+static fgw_error_t pcb_act_load(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	return pcb_gtk_act_load(ghid_port.top_window, oargc, oargv);
+	return pcb_gtk_act_load(ghid_port.top_window, res, argc, argv);
 }
 
-static fgw_error_t pcb_act_save(int oargc, const char **oargv)
+static fgw_error_t pcb_act_save(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	return pcb_gtk_act_save(ghid_port.top_window, oargc, oargv);
+	return pcb_gtk_act_save(ghid_port.top_window, res, argc, argv);
 }
 
-static fgw_error_t pcb_act_importgui(int oargc, const char **oargv)
+static fgw_error_t pcb_act_importgui(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	return pcb_gtk_act_importgui(ghid_port.top_window, oargc, oargv);
+	return pcb_gtk_act_importgui(ghid_port.top_window, res, argc, argv);
 }
 
 /* ------------------------------------------------------------
@@ -458,7 +455,7 @@
 %end-doc */
 
 
-static fgw_error_t pcb_act_About(int oargc, const char **oargv)
+static fgw_error_t pcb_act_About(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_gtk_dlg_about(gport->top_window);
@@ -476,12 +473,9 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_EditLayerGroups(int oargc, const char **oargv)
+static fgw_error_t pcb_act_EditLayerGroups(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	PCB_OLD_ACT_BEGIN;
-	const char *args[] = {"Preferences", "1", "User PoV/Layers"};
-	return pcb_act_DoWindows(sizeof(args)/sizeof(args[0]), args);
-	PCB_OLD_ACT_END;
+	return fgw_vcall(&pcb_fgw, res, "DoWindows", FGW_STR, "Preferences", FGW_STR, "1", FGW_STR, "User PoV/Layers", 0);
 }
 
 /* ------------------------------------------------------------ */
Index: trunk/src_plugins/lib_polyhelp/polyhelp.c
===================================================================
--- trunk/src_plugins/lib_polyhelp/polyhelp.c	(revision 17464)
+++ trunk/src_plugins/lib_polyhelp/polyhelp.c	(revision 17465)
@@ -363,7 +363,7 @@
 
 static const char pcb_acts_PolyHatch[] = "PolyHatch([spacing], [hvcp])\nPolyHatch(interactive)\n";
 static const char pcb_acth_PolyHatch[] = "hatch the selected polygon(s) with lines of the current style; lines are drawn on the current layer; flags are h:horizontal, v:vertical, c:contour, p:poly";
-static fgw_error_t pcb_act_PolyHatch(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PolyHatch(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t period = 0;
@@ -470,7 +470,7 @@
 
 static const char pcb_acts_PolyOffs[] = "PolyOffs(offset)\n";
 static const char pcb_acth_PolyOffs[] = "replicate the outer contour of the selected polygon(s) with growing or shrinking them by offset; the new polygon is drawn on the current layer";
-static fgw_error_t pcb_act_PolyOffs(int oargc, const char **oargv)
+static fgw_error_t pcb_act_PolyOffs(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t offs;
Index: trunk/src_plugins/lib_polyhelp/topoly.c
===================================================================
--- trunk/src_plugins/lib_polyhelp/topoly.c	(revision 17464)
+++ trunk/src_plugins/lib_polyhelp/topoly.c	(revision 17465)
@@ -316,7 +316,7 @@
 
 const char pcb_acts_topoly[] = "ToPoly()\nToPoly(outline)\n";
 const char pcb_acth_topoly[] = "convert a closed loop of lines and arcs into a polygon";
-fgw_error_t pcb_act_topoly(int oargc, const char **oargv)
+fgw_error_t pcb_act_topoly(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	void *r1, *r2, *r3;
Index: trunk/src_plugins/lib_polyhelp/topoly.h
===================================================================
--- trunk/src_plugins/lib_polyhelp/topoly.h	(revision 17464)
+++ trunk/src_plugins/lib_polyhelp/topoly.h	(revision 17465)
@@ -46,6 +46,6 @@
 
 extern const char pcb_acts_topoly[];
 extern const char pcb_acth_topoly[];
-fgw_error_t pcb_act_topoly(int oargc, const char **oargv);
+fgw_error_t pcb_act_topoly(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 #endif
Index: trunk/src_plugins/millpath/millpath.c
===================================================================
--- trunk/src_plugins/millpath/millpath.c	(revision 17464)
+++ trunk/src_plugins/millpath/millpath.c	(revision 17465)
@@ -45,7 +45,7 @@
 
 static const char pcb_acts_mill[] = "mill()";
 static const char pcb_acth_mill[] = "Calculate toolpath for milling away copper";
-fgw_error_t pcb_act_mill(int oargc, const char **oargv)
+fgw_error_t pcb_act_mill(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	ctx.edge_clearance = PCB_MM_TO_COORD(0.05);
Index: trunk/src_plugins/oldactions/oldactions.c
===================================================================
--- trunk/src_plugins/oldactions/oldactions.c	(revision 17464)
+++ trunk/src_plugins/oldactions/oldactions.c	(revision 17465)
@@ -115,7 +115,7 @@
 }
 
 
-static fgw_error_t pcb_act_DumpLibrary(int oargc, const char **oargv)
+static fgw_error_t pcb_act_DumpLibrary(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	dump_lib_any(0, &pcb_library);
@@ -132,7 +132,7 @@
 
 static const char pcb_acth_Bell[] = "Attempt to produce audible notification (e.g. beep the speaker).";
 
-static fgw_error_t pcb_act_Bell(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Bell(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_gui->beep();
@@ -165,7 +165,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Debug(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Debug(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -190,7 +190,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Return(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Return(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	return atoi(argv[0]);
@@ -216,7 +216,7 @@
 
 
 
-fgw_error_t pcb_act_djopt_set_auto_only(int oargc, const char **oargv)
+fgw_error_t pcb_act_djopt_set_auto_only(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	conf_toggle(CFR_DESIGN, "plugins/djopt/auto_only");
@@ -244,7 +244,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_ToggleVendor(int oargc, const char **oargv)
+fgw_error_t pcb_act_ToggleVendor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	conf_toggle(CFR_DESIGN, "plugins/vendor/enable");
@@ -272,7 +272,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_EnableVendor(int oargc, const char **oargv)
+fgw_error_t pcb_act_EnableVendor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	conf_set(CFR_DESIGN, "plugins/vendor/enable", -1, "1", POL_OVERWRITE);
@@ -298,7 +298,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_DisableVendor(int oargc, const char **oargv)
+fgw_error_t pcb_act_DisableVendor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	conf_set(CFR_DESIGN, "plugins/vendor/enable", -1, "0", POL_OVERWRITE);
@@ -306,7 +306,7 @@
 	PCB_OLD_ACT_END;
 }
 
-fgw_error_t pcb_act_ListRotations(int oargc, const char **oargv)
+fgw_error_t pcb_act_ListRotations(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	PCB_SUBC_LOOP(PCB->Data);
Index: trunk/src_plugins/polycombine/polycombine.c
===================================================================
--- trunk/src_plugins/polycombine/polycombine.c	(revision 17464)
+++ trunk/src_plugins/polycombine/polycombine.c	(revision 17465)
@@ -264,7 +264,7 @@
 	return accumulate;
 }
 
-static fgw_error_t pcb_act_polycombine(int oargc, const char **oargv)
+static fgw_error_t pcb_act_polycombine(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_polyarea_t *res;
Index: trunk/src_plugins/polystitch/polystitch.c
===================================================================
--- trunk/src_plugins/polystitch/polystitch.c	(revision 17464)
+++ trunk/src_plugins/polystitch/polystitch.c	(revision 17465)
@@ -89,7 +89,7 @@
 }
 
 
-static fgw_error_t pcb_act_polystitch(int oargc, const char **oargv)
+static fgw_error_t pcb_act_polystitch(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
Index: trunk/src_plugins/propedit/propedit.c
===================================================================
--- trunk/src_plugins/propedit/propedit.c	(revision 17464)
+++ trunk/src_plugins/propedit/propedit.c	(revision 17465)
@@ -41,7 +41,7 @@
 
 static const char pcb_acts_propedit[] = "propedit()";
 static const char pcb_acth_propedit[] = "Run the property editor";
-fgw_error_t pcb_act_propedit(int oargc, const char **oargv)
+fgw_error_t pcb_act_propedit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pe_ctx_t ctx;
@@ -122,7 +122,7 @@
 
 static const char pcb_acts_propset[] = "propset(name, value)";
 static const char pcb_acth_propset[] = "Change the named property of all selected objects to/by value";
-fgw_error_t pcb_act_propset(int oargc, const char **oargv)
+fgw_error_t pcb_act_propset(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int res;
Index: trunk/src_plugins/puller/puller.c
===================================================================
--- trunk/src_plugins/puller/puller.c	(revision 17464)
+++ trunk/src_plugins/puller/puller.c	(revision 17465)
@@ -355,7 +355,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Puller(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Puller(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t Ux, Uy;
@@ -2078,7 +2078,7 @@
 }
 #endif
 
-static fgw_error_t pcb_act_GlobalPuller(int oargc, const char **oargv)
+static fgw_error_t pcb_act_GlobalPuller(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int select_flags = 0;
Index: trunk/src_plugins/query/query_act.c
===================================================================
--- trunk/src_plugins/query/query_act.c	(revision 17464)
+++ trunk/src_plugins/query/query_act.c	(revision 17465)
@@ -117,7 +117,7 @@
 	return pcb_qry_run(prg, cb, user_ctx);
 }
 
-static fgw_error_t pcb_act_query(int oargc, const char **oargv)
+static fgw_error_t pcb_act_query(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *cmd = argc > 0 ? argv[0] : 0;
Index: trunk/src_plugins/renumber/renumber.c
===================================================================
--- trunk/src_plugins/renumber/renumber.c	(revision 17464)
+++ trunk/src_plugins/renumber/renumber.c	(revision 17465)
@@ -70,7 +70,7 @@
 	return s;
 }
 
-static fgw_error_t pcb_act_Renumber(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Renumber(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_bool changed = pcb_false;
@@ -365,8 +365,8 @@
 	PCB_OLD_ACT_END;
 }
 
-fgw_error_t pcb_act_RenumberBlock(int oargc, const char **oargv);
-fgw_error_t pcb_act_RenumberBuffer(int oargc, const char **oargv);
+fgw_error_t pcb_act_RenumberBlock(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
+fgw_error_t pcb_act_RenumberBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv);
 
 
 static const char *renumber_cookie = "renumber plugin";
Index: trunk/src_plugins/renumber/renumberblock.c
===================================================================
--- trunk/src_plugins/renumber/renumberblock.c	(revision 17464)
+++ trunk/src_plugins/renumber/renumberblock.c	(revision 17465)
@@ -34,7 +34,7 @@
 #include "change.h"
 #include "conf_core.h"
 
-fgw_error_t pcb_act_RenumberBlock(int oargc, const char **oargv)
+fgw_error_t pcb_act_RenumberBlock(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char num_buf[15];
@@ -81,7 +81,7 @@
 	PCB_OLD_ACT_END;
 }
 
-fgw_error_t pcb_act_RenumberBuffer(int oargc, const char **oargv)
+fgw_error_t pcb_act_RenumberBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	char num_buf[15];
Index: trunk/src_plugins/report/report.c
===================================================================
--- trunk/src_plugins/report/report.c	(revision 17464)
+++ trunk/src_plugins/report/report.c	(revision 17465)
@@ -145,7 +145,7 @@
 	return grp->name;
 }
 
-static fgw_error_t pcb_act_report_dialog(int oargc, const char **oargv)
+static fgw_error_t pcb_act_report_dialog(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	void *ptr1, *ptr2, *ptr3;
@@ -792,7 +792,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_report(int oargc, const char **oargv)
+static fgw_error_t pcb_act_report(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_coord_t x, y;
@@ -800,11 +800,11 @@
 		AUSAGE(report);
 	else if (pcb_strcasecmp(argv[0], "Object") == 0) {
 		pcb_hid_get_coords("Click on an object", &x, &y);
-		return pcb_act_report_dialog(argc, argv);
+		return pcb_act_report_dialog(ores, oargc, oargv);
 	}
 	else if (pcb_strncasecmp(argv[0], "Subc", 4) == 0) {
 		pcb_hid_get_coords("Click on a subcircuit", &x, &y);
-		return pcb_act_report_dialog(argc, argv);
+		return pcb_act_report_dialog(ores, oargc, oargv);
 	}
 
 	pcb_hid_get_coords("Click on object to report on", &x, &y);
Index: trunk/src_plugins/shand_cmd/command.c
===================================================================
--- trunk/src_plugins/shand_cmd/command.c	(revision 17464)
+++ trunk/src_plugins/shand_cmd/command.c	(revision 17465)
@@ -78,7 +78,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Help(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Help(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_message(PCB_MSG_INFO, "following commands are supported:\n"
@@ -114,7 +114,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LoadLayout(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadLayout(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *filename, *format = NULL;
@@ -152,7 +152,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LoadElementToBuffer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadElementToBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *filename;
@@ -188,7 +188,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LoadLayoutToBuffer(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadLayoutToBuffer(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *filename, *format = NULL;
@@ -225,7 +225,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_Quit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_Quit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (!PCB->Changed || pcb_gui->close_confirm_dialog() == HID_CLOSE_CONFIRM_OK)
@@ -247,7 +247,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_ReallyQuit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_ReallyQuit(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_quit_app();
@@ -275,7 +275,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_LoadNetlist(int oargc, const char **oargv)
+static fgw_error_t pcb_act_LoadNetlist(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *filename;
@@ -323,7 +323,7 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SaveLayout(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SaveLayout(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	switch (argc) {
@@ -369,13 +369,11 @@
 
 %end-doc */
 
-static fgw_error_t pcb_act_SaveLayoutAndQuit(int oargc, const char **oargv)
+static fgw_error_t pcb_act_SaveLayoutAndQuit(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
-	PCB_OLD_ACT_BEGIN;
-	if (!pcb_act_SaveLayout(argc, argv))
-		return pcb_act_Quit(0, 0);
+	if (!pcb_act_SaveLayout(res, argc, argv))
+		return pcb_act_Quit(res, argc, argv);
 	return 1;
-	PCB_OLD_ACT_END;
 }
 
 /* --------------------------------------------------------------------------- */
Index: trunk/src_plugins/shape/shape.c
===================================================================
--- trunk/src_plugins/shape/shape.c	(revision 17464)
+++ trunk/src_plugins/shape/shape.c	(revision 17465)
@@ -315,7 +315,7 @@
 
 static const char pcb_acts_regpoly[] = "regpoly([where,] corners, radius [,rotation])";
 static const char pcb_acth_regpoly[] = "Generate regular polygon. Where is x;y and radius is either r or rx;ry. Rotation is in degrees.";
-fgw_error_t pcb_act_regpoly(int oargc, const char **oargv)
+fgw_error_t pcb_act_regpoly(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	double rot = 0;
@@ -374,7 +374,7 @@
 
 static const char pcb_acts_roundrect[] = "roundrect([where,] width[;height] [,rx[;ry] [,rotation]])";
 static const char pcb_acth_roundrect[] = "Generate a rectangle with round corners";
-fgw_error_t pcb_act_roundrect(int oargc, const char **oargv)
+fgw_error_t pcb_act_roundrect(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int a;
@@ -437,7 +437,7 @@
 
 static const char pcb_acts_circle[] = "circle([where,] diameter)";
 static const char pcb_acth_circle[] = "Generate a filled circle (zero length round cap line)";
-fgw_error_t pcb_act_circle(int oargc, const char **oargv)
+fgw_error_t pcb_act_circle(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	int a;
Index: trunk/src_plugins/shape/shape_dialog.c
===================================================================
--- trunk/src_plugins/shape/shape_dialog.c	(revision 17464)
+++ trunk/src_plugins/shape/shape_dialog.c	(revision 17465)
@@ -354,7 +354,7 @@
 
 static const char pcb_acts_shape[] = "shape()";
 static const char pcb_acth_shape[] = "Interactive shape generator.";
-fgw_error_t pcb_act_shape(int oargc, const char **oargv)
+fgw_error_t pcb_act_shape(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_shape_dialog(PCB, PCB_PASTEBUFFER->Data, pcb_shape_current_layer, pcb_false);
Index: trunk/src_plugins/sketch_route/sketch_route.c
===================================================================
--- trunk/src_plugins/sketch_route/sketch_route.c	(revision 17464)
+++ trunk/src_plugins/sketch_route/sketch_route.c	(revision 17465)
@@ -35,7 +35,7 @@
 
 static const char pcb_acts_skroute[] = "skroute(TODO)";
 static const char pcb_acth_skroute[] = "TODO";
-fgw_error_t pcb_act_skroute(int oargc, const char **oargv)
+fgw_error_t pcb_act_skroute(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	return 0;
Index: trunk/src_plugins/smartdisperse/smartdisperse.c
===================================================================
--- trunk/src_plugins/smartdisperse/smartdisperse.c	(revision 17464)
+++ trunk/src_plugins/smartdisperse/smartdisperse.c	(revision 17465)
@@ -117,7 +117,7 @@
 #define set_visited(obj) htpi_set(&visited, ((void *)(obj)), 1)
 #define is_visited(obj)  htpi_has(&visited, ((void *)(obj)))
 
-static fgw_error_t pcb_act_smartdisperse(int oargc, const char **oargv)
+static fgw_error_t pcb_act_smartdisperse(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *function = ARG(0);
Index: trunk/src_plugins/stroke/stroke.c
===================================================================
--- trunk/src_plugins/stroke/stroke.c	(revision 17464)
+++ trunk/src_plugins/stroke/stroke.c	(revision 17465)
@@ -99,7 +99,7 @@
 
 static const char pcb_acts_stroke[] = "stroke(gesture, seq)";
 static const char pcb_acth_stroke[] = "Various gesture recognition related functions";
-static fgw_error_t pcb_act_stroke(int oargc, const char **oargv)
+static fgw_error_t pcb_act_stroke(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	if (argc < 1)
Index: trunk/src_plugins/teardrops/teardrops.c
===================================================================
--- trunk/src_plugins/teardrops/teardrops.c	(revision 17464)
+++ trunk/src_plugins/teardrops/teardrops.c	(revision 17465)
@@ -248,7 +248,7 @@
 	}
 }
 
-static fgw_error_t pcb_act_teardrops(int oargc, const char **oargv)
+static fgw_error_t pcb_act_teardrops(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_box_t *b;
Index: trunk/src_plugins/vendordrill/vendor.c
===================================================================
--- trunk/src_plugins/vendordrill/vendor.c	(revision 17464)
+++ trunk/src_plugins/vendordrill/vendor.c	(revision 17465)
@@ -121,7 +121,7 @@
 sizes for your vendor.
 %end-doc */
 
-fgw_error_t pcb_act_ApplyVendor(int oargc, const char **oargv)
+fgw_error_t pcb_act_ApplyVendor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	pcb_event(PCB_EVENT_BUSY, NULL);
@@ -144,7 +144,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_UnloadVendor(int oargc, const char **oargv)
+fgw_error_t pcb_act_UnloadVendor(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	cached_drill = -1;
@@ -174,7 +174,7 @@
 
 %end-doc */
 
-fgw_error_t pcb_act_LoadVendorFrom(int oargc, const char **oargv)
+fgw_error_t pcb_act_LoadVendorFrom(fgw_arg_t *ores, int oargc, fgw_arg_t *oargv)
 {
 	PCB_OLD_ACT_BEGIN;
 	const char *fname = NULL;