Tray icon & taskbar app button hide

[talk2amulya]

here is how to hide the taskbar button, it was already explained to you in one of the earlier posts:

void mymainwindow::closeEvent(QCloseEvent *event) {
            hide();
            event->ignore();
}

void mymainwindow::closeEvent(QCloseEvent *event) {
            hide();
            event->ignore();
}

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notice that you'll have to subclass QMainWindow, here mymainwindow is subclass of QMainWindow..if you have any other questions, go through this thread again, your problem has already been solved.