win->Release();
gint handle_enter_notify_event(GtkWidget *w, GdkEventCrossing * event, gpointer p){  nsMouseEvent mevent;  InitCrossingEvent(event, p, mevent, NS_MOUSE_ENTER);  nsWindow *win = (nsWindow *)p;  win->DispatchMouseEvent(mevent);  UninitCrossingEvent(event, p, mevent, NS_MOUSE_ENTER);  return PR_TRUE;}