Index: trunk/src/safe_fs.c
===================================================================
--- trunk/src/safe_fs.c	(revision 27528)
+++ trunk/src/safe_fs.c	(revision 27529)
@@ -106,8 +106,10 @@
 FILE *pcb_fopen_askovr(pcb_hidlib_t *hidlib, const char *path, const char *mode, int *all)
 {
 	if (strchr(mode, 'w') != NULL) {
-		/* if the action does not exist, it will return error, which is non-zero, which means the old behavor: just overwrite anything */
-		if (pcb_find_action("gui_MayOverwriteFile", NULL) != NULL) {
+		fgw_func_t *fun = pcb_act_lookup("gui_mayoverwritefile");
+
+		/* if the action does not exist, use the old behavor: just overwrite anything */
+		if (fun != NULL) {
 			FILE *f = pcb_fopen(hidlib, path, "r");
 			if (f != NULL) {
 				int res = 0;
@@ -114,8 +116,20 @@
 				fclose(f);
 				if (all != NULL)
 					res = *all;
-				if (res != 2)
-					res = pcb_actionl("gui_MayOverwriteFile", path, (all != NULL) ? "1" : "0", NULL);
+				if (res != 2) {
+					fgw_arg_t ares, argv[4];
+
+					argv[0].type = FGW_FUNC; argv[0].val.func = fun;
+					argv[1].type = FGW_PTR;  argv[1].val.ptr_void = hidlib;
+					argv[2].type = FGW_STR;  argv[2].val.cstr = path;
+					argv[3].type = FGW_INT;  argv[3].val.nat_int = (all != NULL);
+					ares.type = FGW_INVALID;
+
+					if ((pcb_actionv_(fun, &ares, 4, argv) != 0) || (fgw_arg_conv(&pcb_fgw, &ares, FGW_INT) != 0))
+						res = -1;
+					else
+						res = ares.val.nat_int;
+				}
 				if (res == 0)
 					return NULL;
 				if ((all != NULL) && (res == 2)) /* remember 'overwrite all' for this session */
Index: trunk/src_plugins/export_openems/excitation.c
===================================================================
--- trunk/src_plugins/export_openems/excitation.c	(revision 27528)
+++ trunk/src_plugins/export_openems/excitation.c	(revision 27529)
@@ -165,9 +165,9 @@
 {
 	PCB_DAD_BEGIN_TABLE(exc_ctx.dlg, 2);
 		PCB_DAD_LABEL(exc_ctx.dlg, "fc");
-		PCB_DAD_REAL(exc_ctx.dlg, "");
+		PCB_DAD_SPIN_FREQ(exc_ctx.dlg);
 			PCB_DAD_MINMAX(exc_ctx.dlg, 0, FREQ_MAX);
-			PCB_DAD_HELP(exc_ctx.dlg, "20db Cutoff Frequency [Hz]\nbandwidth is 2*fc");
+			PCB_DAD_HELP(exc_ctx.dlg, "20db Cutoff Frequency\nbandwidth is 2*fc");
 			PCB_DAD_CHANGE_CB(exc_ctx.dlg, exc_val_chg_cb);
 			exc_ctx.exc_data[idx].w[I_FC] = PCB_DAD_CURRENT(exc_ctx.dlg);
 
Index: trunk/src_plugins/lib_hid_common/dlg_comm_m.c
===================================================================
--- trunk/src_plugins/lib_hid_common/dlg_comm_m.c	(revision 27528)
+++ trunk/src_plugins/lib_hid_common/dlg_comm_m.c	(revision 27529)
@@ -212,6 +212,7 @@
 
 fgw_error_t pcb_act_gui_MayOverwriteFile(fgw_arg_t *res, int argc, fgw_arg_t *argv)
 {
+	pcb_hidlib_t *hidlib;
 	const char *fn;
 	const char *pcb_acts_gui_MayOverwriteFile = nope;
 	const char **xpm;
@@ -230,8 +231,9 @@
 		return 2;
 	}
 
-	PCB_ACT_CONVARG(1, FGW_STR, gui_MayOverwriteFile, fn = argv[1].val.str);
-	PCB_ACT_CONVARG(2, FGW_INT, gui_MayOverwriteFile, multi = argv[2].val.nat_int);
+	PCB_ACT_CONVARG(1, FGW_PTR, gui_MayOverwriteFile, hidlib = argv[1].val.ptr_void);
+	PCB_ACT_CONVARG(2, FGW_STR, gui_MayOverwriteFile, fn = argv[2].val.str);
+	PCB_ACT_CONVARG(3, FGW_INT, gui_MayOverwriteFile, multi = argv[3].val.nat_int);
 
 	PCB_DAD_BEGIN_VBOX(dlg);
 		/* icon and label */
@@ -269,7 +271,7 @@
 	if (dlg[wdontask].val.lng) {
 		pcb_conf_set(CFR_USER, "plugins/dialogs/file_overwrite_dialog/dont_ask", 0, "1", POL_OVERWRITE);
 		if (pcb_conf_isdirty(CFR_USER))
-			pcb_conf_save_file(&PCB->hidlib, NULL, NULL, CFR_USER, NULL);
+			pcb_conf_save_file(hidlib, NULL, NULL, CFR_USER, NULL);
 	}
 	PCB_DAD_FREE(dlg);