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  1. Qt
  2. QTBUG-138167

Showing QOpenGLWidget hides QMainWindow

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    • Linux/Wayland, Linux/X11, Windows

      When a QOpenGLWidget is first shown, QMainWindow is hidden and immediately shown again. This happens only the first time a QOpenGLWidget is shown. Subsequent shows do not hide QMainWindow. Tested on Qt 6.8.3 on Windows, Linux x11 (GNOME 3.36) and Qt 6.9.1 on Linux/Wayland (KDE 6.4). Qt 6.1.3 did not have this issue.

      To reproduce, run the attached program and check the checkbox to show a QOpenGLWidget -> the QMainWindow closes and reopens.

        1. main.cpp
          0.9 kB
        2. qt_opengl_hide_bug.pro
          0.5 kB
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            lagocs Laszlo Agocs
            marcusle Marcus Leivo
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              Created:
              Updated:
              Resolved:

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