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  4. Can qwidget show on top of anoter app when that app is in fullscreen mode on Mac OS?
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Can qwidget show on top of anoter app when that app is in fullscreen mode on Mac OS?

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  • SGaistS SGaist

    Hi,

    It's going to depend on the OS and the application.

    Which are they ?

    P Offline
    P Offline
    pengxu
    wrote on last edited by
    #5

    @SGaist
    I'm sorry, I re-edited the question.
    What I need is on Mac OS system

    M 1 Reply Last reply
    0
    • P pengxu

      @SGaist
      I'm sorry, I re-edited the question.
      What I need is on Mac OS system

      M Offline
      M Offline
      mpergand
      wrote on last edited by
      #6

      @pengxu
      At least it works with Qt::tool window flag. (tested with one of my apps)
      But, as the doc stated, it should work with Qt::WindowStaysOnTopHint, maybee in combination with another flag (dialog ?) .

      1 Reply Last reply
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      • P pengxu

        @JoeCFD
        like this?
        QWidget* test = new QWidget();
        test->setWindowFlag(Qt::WindowStaysOnTopHint);
        test->show();

        It does not work on Mac, when other app at fullscreen state

        JoeCFDJ Offline
        JoeCFDJ Offline
        JoeCFD
        wrote on last edited by JoeCFD
        #7

        @pengxu said in Can qwidget show on top of anoter app when that app is in fullscreen mode on Mac OS?:

        Qt::WindowStaysOnTopHint

        Try to create a window and set the flags as below to see if it works. Do not use qwidget.
        setWindowFlags(Qt::CustomizeWindowHint
        | Qt::FramelessWindowHint
        | Qt::WindowStaysOnTopHint);

        Sure, as mpergand suggested, you can try qdialog as well.

        Or something like subwindow? not sure. Never used it.
        https://localcoder.org/notification-window-in-mac-with-or-without-qt#solution_1

        If nothing works, add overlay widget to the fullscreen widget and use the full screen widget as parent. this will work.

        P 1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #8

          A full screen application on macOS is not the same thing as one on Windows or Linux. It moves to its own "desktop" and thus other applications are not working on the same space.

          What exactly are you trying to do with your application ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          P 1 Reply Last reply
          1
          • SGaistS SGaist

            A full screen application on macOS is not the same thing as one on Windows or Linux. It moves to its own "desktop" and thus other applications are not working on the same space.

            What exactly are you trying to do with your application ?

            P Offline
            P Offline
            pengxu
            wrote on last edited by
            #9

            @SGaist
            My application has an function "sharing screen", there is toolbar on top of screen that users can try to stop sharing. Even when user is using other apps on fullscreen mode.
            I can achieve this by using objective-c code, but I don't know how to achieve this by Qt

            JoeCFDJ A 2 Replies Last reply
            0
            • JoeCFDJ JoeCFD

              @pengxu said in Can qwidget show on top of anoter app when that app is in fullscreen mode on Mac OS?:

              Qt::WindowStaysOnTopHint

              Try to create a window and set the flags as below to see if it works. Do not use qwidget.
              setWindowFlags(Qt::CustomizeWindowHint
              | Qt::FramelessWindowHint
              | Qt::WindowStaysOnTopHint);

              Sure, as mpergand suggested, you can try qdialog as well.

              Or something like subwindow? not sure. Never used it.
              https://localcoder.org/notification-window-in-mac-with-or-without-qt#solution_1

              If nothing works, add overlay widget to the fullscreen widget and use the full screen widget as parent. this will work.

              P Offline
              P Offline
              pengxu
              wrote on last edited by
              #10

              @JoeCFD
              I tried this, but it does not work either
              QDialog* test = new QDialog();
              // test->setWindowFlags(Qt::WindowStaysOnTopHint | Qt::Tool | Qt::FramelessWindowHint);
              test->setWindowFlags(Qt::CustomizeWindowHint
              | Qt::FramelessWindowHint
              | Qt::WindowStaysOnTopHint);
              test->show();

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #11

                Since it's macOS specific, nothing wrong with mixing some Objective-C++ to achieve your objective.

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                1 Reply Last reply
                0
                • P pengxu

                  @SGaist
                  My application has an function "sharing screen", there is toolbar on top of screen that users can try to stop sharing. Even when user is using other apps on fullscreen mode.
                  I can achieve this by using objective-c code, but I don't know how to achieve this by Qt

                  JoeCFDJ Offline
                  JoeCFDJ Offline
                  JoeCFD
                  wrote on last edited by
                  #12

                  @pengxu try overlay widget with fullscreen widget as parent.

                  1 Reply Last reply
                  0
                  • P pengxu

                    @SGaist
                    My application has an function "sharing screen", there is toolbar on top of screen that users can try to stop sharing. Even when user is using other apps on fullscreen mode.
                    I can achieve this by using objective-c code, but I don't know how to achieve this by Qt

                    A Offline
                    A Offline
                    abooo
                    wrote on last edited by
                    #13

                    @pengxu Can you share how to use object-c to implement this feature?

                    1 Reply Last reply
                    1
                    • R Offline
                      R Offline
                      Rida Shamasneh
                      wrote on last edited by
                      #14

                      Hi all,

                      Any help with this issue?

                      1 Reply Last reply
                      0

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