func (v *Dialog) GetWidgetForResponse(id ResponseType) (*Widget, error) {
	c := C.gtk_dialog_get_widget_for_response(v.native(), C.gint(id))
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapWidget(obj), nil
}
func (v *Dialog) GetWidgetForResponse(id ResponseType) (*Widget, error) {
	c := C.gtk_dialog_get_widget_for_response(v.native(), C.gint(id))
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapWidget(obj), nil
}
// GetWidgetForResponse() is a wrapper around
// gtk_dialog_get_widget_for_response().