Index: source/blender/windowmanager/intern/wm_operators.c
===================================================================
--- source/blender/windowmanager/intern/wm_operators.c	(revision 25237)
+++ source/blender/windowmanager/intern/wm_operators.c	(working copy)
@@ -2652,6 +2652,7 @@
 /* called on initialize WM_init() */
 void wm_operatortype_init(void)
 {
+	WM_operatortype_append(WM_OT_redraw);
 	WM_operatortype_append(WM_OT_window_duplicate);
 	WM_operatortype_append(WM_OT_read_homefile);
 	WM_operatortype_append(WM_OT_save_homefile);
Index: source/blender/windowmanager/intern/wm.c
===================================================================
--- source/blender/windowmanager/intern/wm.c	(revision 25237)
+++ source/blender/windowmanager/intern/wm.c	(working copy)
@@ -332,4 +332,22 @@
 	}
 }
 
+static void wm_redraw (bContext *C, wmOperator *op)
+{
+	bContext *nc= CTX_copy(C);
+	wm_event_do_notifiers(nc);
+	wm_draw_update(nc);
+	CTX_free (nc);
+}
 
+void WM_OT_redraw(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Redraw";
+	ot->idname= "WM_OT_redraw";
+	ot->description= "handle notifiers and redraw the screen";
+	
+	/* api callbacks */
+	ot->exec= wm_redraw;
+}
+
Index: source/blender/windowmanager/WM_api.h
===================================================================
--- source/blender/windowmanager/WM_api.h	(revision 25237)
+++ source/blender/windowmanager/WM_api.h	(working copy)
@@ -51,6 +51,7 @@
 void		WM_init				(struct bContext *C);
 void		WM_exit				(struct bContext *C);
 void		WM_main				(struct bContext *C);
+void		WM_OT_redraw		(struct wmOperatorType *ot);
 
 void		WM_init_splash		(struct bContext *C);