gtk/gtk.go
func (v *Frame) SetLabelWidget(labelWidget IWidget) {
	C.gtk_frame_set_label_widget(v.native(), labelWidget.toWidget())
}
func (v *Frame) SetLabelWidget(labelWidget IWidget) {
	C.gtk_frame_set_label_widget(v.native(), labelWidget.toWidget())
}
// SetLabelWidget is a wrapper around gtk_frame_set_label_widget().