gtk/gtk.go
func RadioButtonNewWithLabelFromWidget(radioGroupMember *RadioButton, label string) (*RadioButton, error) {
	cstr := C.CString(label)
	defer C.free(unsafe.Pointer(cstr))
	var cradio *C.GtkRadioButton
	if radioGroupMember != nil {
		cradio = radioGroupMember.native()
	}
	c := C.gtk_radio_button_new_with_label_from_widget(cradio, (*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapRadioButton(glib.Take(unsafe.Pointer(c))), nil
}
func RadioButtonNewWithLabelFromWidget(radioGroupMember *RadioButton, label string) (*RadioButton, error) {
	cstr := C.CString(label)
	defer C.free(unsafe.Pointer(cstr))
	var cradio *C.GtkRadioButton
	if radioGroupMember != nil {
		cradio = radioGroupMember.native()
	}
	c := C.gtk_radio_button_new_with_label_from_widget(cradio, (*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapRadioButton(glib.Take(unsafe.Pointer(c))), nil
}
// RadioButtonNewWithLabelFromWidget is a wrapper around
// gtk_radio_button_new_with_label_from_widget().