Qt5.12实战之QMessageBox消息框使用

1. 使用前引用头文件 #include <QMessageBox>
2. 如要使用中文需要使用 QString::fromLocal8Bit 来转换
3. QMessageBox支持6种类型的消息框,包含自定义的

information:

QMessageBox::information(this,
                             "Information",
                             "this is informations");

critical:

QMessageBox::critical(this,
                          "Critical",
                          "this is Critical text");

question:

QMessageBox::question(this,
                          "Question",
                          "this is an question ?",
                          QMessageBox::Ok,
                          QMessageBox::Cancel);

warning:

QMessageBox::warning(this,
                         "Warning",
                         "this is an warning content!");

about:

QMessageBox::about(this,
                       "About",
                       "this is an ablut text");

自定义:

QMessageBox msg(QMessageBox::NoIcon,
                    "CustMsg",
                    "this is an custom msg",
                    QMessageBox::Yes|
                    QMessageBox::No|
                    QMessageBox::Cancel);

    msg.setIcon(QMessageBox::Critical);
    msg.setWindowTitle(CH("自定义消息框"));
    msg.setText(CH("这是自定义消息框的内容！"));;
    msg.setDefaultButton(QMessageBox::Yes);//默认按钮
    int m = msg.exec();
    switch(m){
        case QMessageBox::Yes:
            qDebug()<<CH("选择了Yes");
        break;
        case QMessageBox::No:
            qDebug()<<CH("选择了No");
        break;
        case QMessageBox::Cancel:
            qDebug()<<CH("选择了Cancel");
        break;
        default:
            break;
    }