func RadioMenuItemNewWithLabelFromWidget(group *RadioMenuItem, label string) (*RadioMenuItem, error) {
	cstr := C.CString(label)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_radio_menu_item_new_with_label_from_widget(group.native(),
		(*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapRadioMenuItem(glib.Take(unsafe.Pointer(c))), nil
}
func RadioMenuItemNewWithLabelFromWidget(group *RadioMenuItem, label string) (*RadioMenuItem, error) {
	cstr := C.CString(label)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_radio_menu_item_new_with_label_from_widget(group.native(),
		(*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapRadioMenuItem(glib.Take(unsafe.Pointer(c))), nil
}
// RadioMenuItemNewWithLabelFromWidget is a wrapper around
// gtk_radio_menu_item_new_with_label_from_widget().