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  1. Qt
  2. QTBUG-97783

QWindow in a container prevents QMdiSubWindow close

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Done
    • Affects Version/s: 6.2.0, 6.2.1
    • Fix Version/s: 6.2.2
    • Component/s: Widgets: Main Window
    • Environment:
      Qt 6.2.0-0-202109270531
      Visual Studio 2019
      Windows SDK 10.0.17763.0
      Microsoft Visual C++ Compiler 16.6.30309.148 (amd64)
      OpenGL version: 4.6.0 - Build 26.20.100.7262
      GLSL version: 4.60 - Build 26.20.100.7262
    • Platform/s:
      Linux/X11, macOS, Windows

      Description

      It appears that the Qt Event Loop stops processing close events when a QSurface3DSeries is put into a QMdiSubWindow.

       

      The attached zip contains the Qt DataVisualization 3D Surface example with the following minor tweaks:

      • A QMdiArea is set as the central widget of a QMainWindow
      • The Q3DSurface container widget is inserted into a QMdiSubWindow

       

      As you will see, the sub-window cannot be closed with the Q3DSurface present. The sub-window will close normally if you substitute for another widget such as a QLabel.

       

      This seems like a Qt 6.2 regression. It is not present in Qt 5.15.

       

      Also worth noting, in another project that is not attached; Calls to QApplication::quit() are ignored when the Q3DSurface container widget is inserted into a QMdiSubWindow.

       

        Attachments

        1. Demo.mp4
          2.62 MB
        2. surface.zip
          192 kB
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          Activity

            People

            Assignee:
            vhilshei Volker Hilsheimer
            Reporter:
            rudyb Rudy Bermudez
            Votes:
            1 Vote for this issue
            Watchers:
            6 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

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