func (v *Widget) Reparent(newParent IWidget) {
	C.gtk_widget_reparent(v.native(), newParent.toWidget())
}
func (v *Widget) Reparent(newParent IWidget) {
	C.gtk_widget_reparent(v.native(), newParent.toWidget())
}
// Reparent() is a wrapper around gtk_widget_reparent().