QSystemTrayIcon and window focus

vic.ju

Hi folks,

I just noticed that there is a different behaviour on Windows and macOS if you click the QSystemTrayIcon. My menu is update before it is drawn, so I connected the following slot to QMenu::aboutToShow.

void updateAction()
{
    QWidget* activeWidget = QApplication::activeWindow();
    mCloseAction->setEnabled(activeWidget != nullptr);
}

On macOS the active window is the last focused Window e.g. MainWindow as expected. On Windows (10) on the other hand QApplication::activeWindow() returns a nullptr. Why is the frontmost window not set to be the active window again like on macOS? As far as I understood it, clicking outside of your application lets you lose the focus and therefore you have no active window anymore. I was just wondering if it is recreating native behaviour or if it a bug.

Best regards,
Victor

SGaist

Hi,

Which version of Qt are you using ?
Which version of macOS ?
Which version of Windows ?
Can you provide a minimal compilable example that shows the behaviour ?

vic.ju

Oh sorry, here are the information:

Qt 5.15.1 (same on Qt 5.14.2)
MacBook Pro (16-inch, 2019)
macOS 10.15.6 (19G2021)
Windows 10 (Build 19041)

Minimal example: https://ufile.io/gamjo6zy

Start your application and click on any other opened window (or the desktop)
Right click the system tray icon

The action now is enabled on macOS, but disabled on windows.

SGaist

Sorry, I have lost track on this thread. Would it be possible to make the example available again ?
In the mean time, 5.15.2 was released, did you check with it ?