QMessageBox 带有“不再显示”复选框

如何显示下面带有“不再显示”复选框的消息框？

我想象的东西看起来像这样：

Qt 5.2 添加了添加QCheckBox to a QMessageBox。看一下QMessageBox::setCheckbox http://doc.qt.io/qt-5/qmessagebox.html#setCheckBox

这是一些演示代码

if (this->showMsgBox) {
    QCheckBox *cb = new QCheckBox("Okay I understand");
    QMessageBox msgbox;
    msgbox.setText("Am I nerve-wrecking?");
    msgbox.setIcon(QMessageBox::Icon::Question);
    msgbox.addButton(QMessageBox::Ok);
    msgbox.addButton(QMessageBox::Cancel);
    msgbox.setDefaultButton(QMessageBox::Cancel);
    msgbox.setCheckBox(cb);

    QObject::connect(cb, &QCheckBox::stateChanged, [this](int state){
        if (static_cast<Qt::CheckState>(state) == Qt::CheckState::Checked) {
            this->showMsgBox = false;
        }
    });

    msgbox.exec();
}