void QQuickDialog::setStandardButtons(StandardButtons buttons)
{
    m_enabledButtons = buttons;
    m_standardButtonsLeftModel = QJSValue();
    m_standardButtonsRightModel = QJSValue();
    emit standardButtonsChanged();
}
void QQuickAbstractMessageDialog::setStandardButtons(StandardButtons buttons)
{
    if (buttons != m_options->standardButtons()) {
        m_options->setStandardButtons(static_cast<QPlatformDialogHelper::StandardButtons>(static_cast<int>(buttons)));
        emit standardButtonsChanged();
    }
}