QT create application tray and related functions

The header file ：

QSystemTrayIcon *tray;// Tray icon 
QMenu *menu;// Tray menu 
QAction *reset;// Restore window 
QAction *quit;// Exit procedure 

Initialize tray function ：

void MainWindow::initTray()
{
    tray = new QSystemTrayIcon(this);
    tray->setIcon(QIcon(QPixmap(":/images/icon.ico")));

    connect(tray, &QSystemTrayIcon::activated, this, &MainWindow::onTrayClicked);

    menu	= new QMenu(this);
    reset	= new QAction(this);
    reset->setText(" Display window ");
    reset->setIcon(QIcon(":/images/show.png"));

    connect(reset, &QAction::triggered, this, &MainWindow::showNormal);
    quit = new QAction( this);
    quit->setText(" Exit procedure ");
    quit->setIcon(QIcon(":/images/quit.png"));
    connect(quit, &QAction::triggered, qApp, &QCoreApplication::quit);

    tray->setContextMenu(menu);
    menu->addAction(reset);
    menu->addAction(quit);
}

Override close event ：

void MainWindow::closeEvent(QCloseEvent *event)
{
    event->ignore();
    this->hide();
    tray->show();
}

Click the tray icon slot function ：

void MainWindow::onTrayClicked(QSystemTrayIcon::ActivationReason reason)
{
    if ( reason == QSystemTrayIcon::Trigger )
    {
        this->showNormal();
    }
}

problem ：

If there is msgbox eject , It will cause the whole program to exit . terms of settlement ：

effect ：