How do I properly implement a "minimize to tray" function in Qt?

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How do I properly implement a "minimize to tray" function in Qt?

I tried the following code inside QMainWindow::changeEvent(QEvent *e), but the window simply minimizes to the taskbar and the client area appears blank white when restored.

if (Preferences::instance().minimizeToTray())
{
    e->ignore();
    this->setVisible(false);
}

Attempting to ignore the event doesn't seem to do anything, either.

window-managers qt c++
4 Answers

I have found that the showMinimized() slot works without a QTimer delay, so you can use code like:

mw->show();
if ( qApp->arguments().contains( "--startHidden" ) )
  mw->showMinimized();

in your main() to show a main window and immediately iconize it, when desired.

user_22916000
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