gtk/widget.go
func (v *Widget) GetToplevel() (*Widget, error) {
	c := C.gtk_widget_get_toplevel(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWidget(glib.Take(unsafe.Pointer(c))), nil
}
func (v *Widget) GetToplevel() (*Widget, error) {
	c := C.gtk_widget_get_toplevel(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWidget(glib.Take(unsafe.Pointer(c))), nil
}
// GetToplevel is a wrapper around gtk_widget_get_toplevel().