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c++qtwindow-management

Is there a way to determine if a top level Qt window has been moved?

I am trying to determine when the main window of my application has been moved. The main window is a standard QMainWindow and we've installed an eventFilter on the QApplication to look for moveEvents for the QMainWindow, but none are being triggered. For a variety of reasons, subclassing the QMainWindow isn't really an option.

Any thoughts on this, aside from starting a QTimer tto constantly check the position, would greatly be appreciated.

Solution

  • I guess it's better to install the event filter at the top-level window, instead of the application. However, if you still do not get QMoveEvents and you're working on Windows, you probably can override winEventFilter() and wait for WM_MOVE. Similar functionality might be available for Linux and Mac.

    I usually do not recommend to break the platform-independence, but sometimes it might make sense.