Index: trunk/src/event.h
===================================================================
--- trunk/src/event.h	(revision 8620)
+++ trunk/src/event.h	(revision 8621)
@@ -37,6 +37,7 @@
 	PCB_EVENT_ROUTE_STYLES_CHANGED,   /* called after any route style change (used to be the RouteStylesChanged action) */
 	PCB_EVENT_NETLIST_CHANGED,        /* called after any netlist change (used to be the NetlistChanged action) */
 	PCB_EVENT_LAYERS_CHANGED,         /* called after layers or layer groups change (used to be the LayersChanged action) */
+	PCB_EVENT_LAYERVIS_CHANGED,       /* called after the visibility of layers has changed */
 	PCB_EVENT_LIBRARY_CHANGED,        /* called after a change in the footprint lib (used to be the LibraryChanged action) */
 	PCB_EVENT_FONT_CHANGED,           /* called when a font has changed; argument is the font ID */
 
Index: trunk/src/find_drc.c
===================================================================
--- trunk/src/find_drc.c	(revision 8620)
+++ trunk/src/find_drc.c	(revision 8621)
@@ -335,7 +335,7 @@
 	drcerr_count = 0;
 	pcb_layervis_save_stack();
 	pcb_layervis_reset_stack();
-	pcb_event(PCB_EVENT_LAYERS_CHANGED, NULL);
+	pcb_event(PCB_EVENT_LAYERVIS_CHANGED, NULL);
 	pcb_conn_lookup_init();
 
 	TheFlag = PCB_FLAG_FOUND | PCB_FLAG_DRC | PCB_FLAG_SELECTED;
@@ -690,7 +690,7 @@
 
 
 	pcb_layervis_restore_stack();
-	pcb_event(PCB_EVENT_LAYERS_CHANGED, NULL);
+	pcb_event(PCB_EVENT_LAYERVIS_CHANGED, NULL);
 	pcb_gui->invalidate_all();
 
 	if (nopastecnt > 0) {
Index: trunk/src/layer_vis.c
===================================================================
--- trunk/src/layer_vis.c	(revision 8620)
+++ trunk/src/layer_vis.c	(revision 8621)
@@ -118,7 +118,7 @@
 
 	done:;
 	/* update control panel and exit */
-	pcb_event(PCB_EVENT_LAYERS_CHANGED, NULL);
+	pcb_event(PCB_EVENT_LAYERVIS_CHANGED, NULL);
 	return (changed);
 }
 
@@ -226,7 +226,7 @@
 		}
 	}
 	if (chg)
-		pcb_event(PCB_EVENT_LAYERS_CHANGED, NULL);
+		pcb_event(PCB_EVENT_LAYERVIS_CHANGED, NULL);
 	in = 0;
 }
 
Index: trunk/src_plugins/hid_lesstif/main.c
===================================================================
--- trunk/src_plugins/hid_lesstif/main.c	(revision 8620)
+++ trunk/src_plugins/hid_lesstif/main.c	(revision 8621)
@@ -3793,6 +3793,7 @@
 	pcb_event_bind(PCB_EVENT_NETLIST_CHANGED, LesstifNetlistChanged, NULL, lesstif_cookie);
 	pcb_event_bind(PCB_EVENT_ROUTE_STYLES_CHANGED, LesstifRouteStylesChanged, NULL, lesstif_cookie);
 	pcb_event_bind(PCB_EVENT_LAYERS_CHANGED, LesstifLayersChanged, NULL, lesstif_cookie);
+	pcb_event_bind(PCB_EVENT_LAYERVIS_CHANGED, LesstifLayersChanged, NULL, lesstif_cookie);
 	pcb_event_bind(PCB_EVENT_LIBRARY_CHANGED, LesstifLibraryChanged, NULL, lesstif_cookie);
 	pcb_event_bind(PCB_EVENT_BUSY, LesstifBusy, NULL, lesstif_cookie);
 
Index: trunk/src_plugins/lib_gtk_hid/glue_event.c
===================================================================
--- trunk/src_plugins/lib_gtk_hid/glue_event.c	(revision 8620)
+++ trunk/src_plugins/lib_gtk_hid/glue_event.c	(revision 8621)
@@ -78,6 +78,7 @@
 	pcb_event_bind(PCB_EVENT_NETLIST_CHANGED, GhidNetlistChanged, NULL, cookie);
 	pcb_event_bind(PCB_EVENT_ROUTE_STYLES_CHANGED, RouteStylesChanged, NULL, cookie);
 	pcb_event_bind(PCB_EVENT_LAYERS_CHANGED, ghid_LayersChanged, NULL, cookie);
+	pcb_event_bind(PCB_EVENT_LAYERVIS_CHANGED, ghid_LayersChanged, NULL, cookie);
 	pcb_event_bind(PCB_EVENT_BUSY, ghid_Busy, NULL, cookie);
 	pcb_event_bind(PCB_EVENT_GUI_SYNC, ghid_gui_sync, NULL, cookie);
 }