func (t *Tooltip) native() *C.GtkTooltip {
	if t == nil || t.GObject == nil {
		return nil
	}
	p := unsafe.Pointer(t.GObject)
	return C.toGtkTooltip(p)
}
func (t *Tooltip) native() *C.GtkTooltip {
	if t == nil || t.GObject == nil {
		return nil
	}
	p := unsafe.Pointer(t.GObject)
	return C.toGtkTooltip(p)
}
// native returns a pointer to the underlying GtkIconView.