#include <QtGui>

class SystemTrayIcon: public QSystemTrayIcon
{
    Q_OBJECT
public:
    SystemTrayIcon()
    {
        QFileIconProvider fip;
        QIcon icon = fip.icon(QFileIconProvider::File);
        setIcon(icon);
        m_menu=new QMenu;
        m_menu->addAction("item");
        connect(m_menu, SIGNAL(triggered(QAction*)), this, SLOT(triggered()));
        setContextMenu(m_menu);
    }


public slots:
    void triggered()
    {
        setContextMenu(0);
        QTimer::singleShot(2000, this, SLOT(hide()));
    }

private:
    QMenu* m_menu;
};

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
    SystemTrayIcon tray;
    tray.show();
    return(app.exec());
}

#include "main.moc"