gtk/gtk_since_3_20.go
func (v *NativeDialog) Run() int {
	c := C.gtk_native_dialog_run(v.native())
	return int(c)
}
func (v *NativeDialog) Run() int {
	c := C.gtk_native_dialog_run(v.native())
	return int(c)
}
// Run() is a wrapper around gtk_native_dialog_run().