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How to get pointer to QQuickWindow with keyboard

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  • K Offline
    K Offline
    kubikula
    wrote on 18 Sept 2020, 12:00 last edited by
    #1

    Hi,

    I'm using qt widgets on embedded device and using qml virtual keyboard. I .pro file I have

    CONFIG += disable-desktop
    

    I have problem that keyboard is shown as a fullscreen and overlap all my application

    Operation system is yocto. I found some topics and bug reports about this.
    For example here:
    https://bugreports.qt.io/browse/QTBUG-65884

    At article https://stackoverflow.com/questions/61608431/virtual-keyboard-top-black-screen-in-yocto
    is described a hack how to solve this problem. So now I know what I must do, but don't know exactly how to do it.

    My problem is how to find pointer to QQuickWindow wich contains virtual keyboard. I tried use

    QApplication::allWidgets()
    

    but the window isn't here.

    Thank you for your help.

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    • K Offline
      K Offline
      kubikula
      wrote on 22 Sept 2020, 11:38 last edited by
      #2

      Finally I found a solution.

      QGuiApplication::allWindows()
      

      Is the trick. Code like this solved my problem.

       for(QWindow * w: QGuiApplication::allWindows()) {
              if(std::strcmp(w->metaObject()->className(), "QtVirtualKeyboard::InputView") == 0){
                  if(QObject *keyboard = w->findChild<QObject *>("keyboard")){
                      QRect r = w->geometry();
                      r.moveTop(keyboard->property("y").toDouble());
                      w->setMask(r);
                      return;
                  }
             }
        }
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