gboolean matenu_ungrab_key(GdkWindow * grab_window, guint keyval, GdkModifierType state) {
	return maybe_grab_key(grab_window, keyval, state, FALSE);
}
gboolean gnomenu_grab_key(GdkWindow * grab_window, guint keyval, GdkModifierType state) {
	return maybe_grab_key(grab_window, keyval, state, TRUE);
}