Index: src/draw.c
===================================================================
--- src/draw.c	(revision 37070)
+++ src/draw.c	(revision 37071)
@@ -1005,7 +1005,7 @@
 	}
 }
 
-void pcb_expose_preview(rnd_hid_t *hid, const rnd_hid_expose_ctx_t *e)
+void pcb_expose_preview(rnd_hid_t *hid, rnd_hid_expose_ctx_t *e)
 {
 	pcb_output_t save;
 	expose_begin(&save, hid);
Index: src/draw.h
===================================================================
--- src/draw.h	(revision 37070)
+++ src/draw.h	(revision 37071)
@@ -189,6 +189,6 @@
 #define PCB_DRAW_TERM_GFX_WIDTH (-3)
 
 void pcb_expose_main(rnd_hid_t *hid, const rnd_hid_expose_ctx_t *ctx, rnd_xform_t *xform_caller);
-void pcb_expose_preview(rnd_hid_t *hid, const rnd_hid_expose_ctx_t *e);
+void pcb_expose_preview(rnd_hid_t *hid, rnd_hid_expose_ctx_t *e);
 
 #endif
Index: src/search.c
===================================================================
--- src/search.c	(revision 37070)
+++ src/search.c	(revision 37071)
@@ -1768,6 +1768,7 @@
 }
 
 vtp0_t pcb_obj_list_vect;
+pcb_board_t *pcb_obj_list_board;
 int pcb_search_screen_selector(rnd_coord_t X, rnd_coord_t Y, int Type, void **Result1, void **Result2, void **Result3)
 {
 	rnd_box_t box;
@@ -1784,6 +1785,7 @@
 	box.Y1 = Y + radius;
 
 	vtp0_init(&pcb_obj_list_vect);
+	pcb_obj_list_board = PCB;
 	pcb_list_block_cb(PCB, &box, (void *(*)(void *, pcb_any_obj_t *))vtp0_append, &pcb_obj_list_vect);
 
 	if (pcb_obj_list_vect.used == 1) {
@@ -1800,10 +1802,12 @@
 	}
 
 	vtp0_uninit(&pcb_obj_list_vect);
+	pcb_obj_list_board = NULL;
 	return PCB_OBJ_VOID;
 
 	found:;
 	vtp0_uninit(&pcb_obj_list_vect);
+	pcb_obj_list_board = NULL;
 	*Result1 = obj->parent.any;
 	*Result2 = *Result3 = obj;
 	return obj->type;
Index: src_plugins/dialogs/dlg_fontsel.c
===================================================================
--- src_plugins/dialogs/dlg_fontsel.c	(revision 37070)
+++ src_plugins/dialogs/dlg_fontsel.c	(revision 37071)
@@ -72,7 +72,7 @@
 		memset(ctx, 0, sizeof(fontsel_ctx_t));
 }
 
-void fontsel_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+void fontsel_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	fontsel_ctx_t *ctx = prv->user_ctx;
 
Index: src_plugins/dialogs/dlg_lib_pstk.c
===================================================================
--- src_plugins/dialogs/dlg_lib_pstk.c	(revision 37070)
+++ src_plugins/dialogs/dlg_lib_pstk.c	(revision 37071)
@@ -152,7 +152,7 @@
 	ps->ID = -1; /* disable undo and clipping */
 }
 
-static void pstklib_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void pstklib_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	pstk_lib_ctx_t *ctx = prv->user_ctx;
 	pcb_data_t *data = get_data(ctx, ctx->subc_id, NULL);
Index: src_plugins/dialogs/dlg_library.c
===================================================================
--- src_plugins/dialogs/dlg_library.c	(revision 37070)
+++ src_plugins/dialogs/dlg_library.c	(revision 37071)
@@ -363,7 +363,7 @@
 
 }
 
-static void library_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void library_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	library_ctx_t *ctx = prv->user_ctx;
 	int orig_po = pcb_draw_force_termlab;
Index: src_plugins/dialogs/dlg_pinout.c
===================================================================
--- src_plugins/dialogs/dlg_pinout.c	(revision 37070)
+++ src_plugins/dialogs/dlg_pinout.c	(revision 37071)
@@ -56,7 +56,7 @@
 }
 
 
-static void pinout_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void pinout_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	pinout_ctx_t *ctx = prv->user_ctx;
 	void *r1, *r2, *r3;
Index: src_plugins/dialogs/dlg_pref_layer.c
===================================================================
--- src_plugins/dialogs/dlg_pref_layer.c	(revision 37070)
+++ src_plugins/dialogs/dlg_pref_layer.c	(revision 37071)
@@ -34,7 +34,7 @@
 #define RND_EMPTY(a)           ((a) ? (a) : "")
 
 
-void layersel_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+void layersel_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	pcb_stub_draw_csect(gc, e);
 }
Index: src_plugins/dialogs/dlg_test.c
===================================================================
--- src_plugins/dialogs/dlg_test.c	(revision 37070)
+++ src_plugins/dialogs/dlg_test.c	(revision 37071)
@@ -63,7 +63,7 @@
 static void cb_text_offs(void *hid_ctx, void *caller_data, rnd_hid_attribute_t *attr);
 static void cb_text_ro(void *hid_ctx, void *caller_data, rnd_hid_attribute_t *attr);
 
-static void prv_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e);
+static void prv_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e);
 static rnd_bool prv_mouse(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_mouse_ev_t kind, rnd_coord_t x, rnd_coord_t y);
 
 static const char * test_xpm[] = {
@@ -508,7 +508,7 @@
 	txt->hid_set_readonly(atxt, hid_ctx, ctx->txtro);
 }
 
-static void prv_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void prv_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	rnd_render->set_color(gc, rnd_color_red);
 	pcb_text_draw_string_simple(NULL, "foo", RND_MM_TO_COORD(1), RND_MM_TO_COORD(20), 5.0, 5.0, 10.0, 0, 0, 0, 0, 0);
Index: src_plugins/import_ttf/ttf.c
===================================================================
--- src_plugins/import_ttf/ttf.c	(revision 37070)
+++ src_plugins/import_ttf/ttf.c	(revision 37071)
@@ -404,7 +404,7 @@
 	memset(ctx, 0, sizeof(ttfgui_ctx_t)); /* reset all states to the initial - includes ctx->active = 0; */
 }
 
-static void ttf_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void ttf_expose(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 /*	ttfgui_ctx_t *ctx = prv->user_ctx;*/
 	char s[17];
Index: src_plugins/propedit/propdlg.c
===================================================================
--- src_plugins/propedit/propdlg.c	(revision 37070)
+++ src_plugins/propedit/propdlg.c	(revision 37071)
@@ -217,58 +217,58 @@
 	}
 }
 
-static void (*help_expose)(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e) = NULL;
+static void (*help_expose)(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e) = NULL;
 
-static void help_trace_thickness(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_trace_thickness(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/thickness.c"
 }
 
-static void help_trace_clearance(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_trace_clearance(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/clearance.c"
 }
 
-static void help_text_scale(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_text_scale(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/text_scale.c"
 }
 
-static void help_text_scale_x(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_text_scale_x(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/text_scale_x.c"
 }
 
-static void help_text_scale_y(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_text_scale_y(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/text_scale_y.c"
 }
 
-static void help_text_thickness(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_text_thickness(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/text_thickness.c"
 }
 
-static void help_text_rotation(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_text_rotation(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/text_rot.c"
 }
 
-static void help_arc_angles(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_arc_angles(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/arc_angles.c"
 }
 
-static void help_arc_r(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void help_arc_r(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 #	include "help/arc_r.c"
 }
 
-static void prop_nil_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void prop_nil_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 }
 
-static void prop_prv_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e)
+static void prop_prv_expose_cb(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e)
 {
 	if (help_expose != NULL)
 		help_expose(attrib, prv, gc, e);
@@ -369,7 +369,7 @@
 	rnd_hid_tree_t *tree = attrib->wdata;
 	propdlg_t *ctx = tree->user_ctx;
 	pcb_props_t *p = NULL;
-	void (*last_help)(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, const rnd_hid_expose_ctx_t *e) = NULL;
+	void (*last_help)(rnd_hid_attribute_t *attrib, rnd_hid_preview_t *prv, rnd_hid_gc_t gc, rnd_hid_expose_ctx_t *e) = NULL;
 	const char *helptxt = NULL;
 
 	last_help = help_expose;