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  1. Qt
  2. QTBUG-35926

Windows: Getting debug console error message when using task manager

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P4: Low P4: Low
    • 5.3.0
    • 5.2.0
    • GUI: Window management
    • None
    • Windows 7 Prof. 64, VS2012, Qt5.2.0/x64/ANGLE, AMD Radeon HD 5700 Series, current catalyst drivers, resolution 1920x1200 at 32bit, AMD FX8350 (Octacore) CPU
    • 1cf5cd34f70bd04dd9d1850b2fdd4a99d7ba5919 (dev, 15.1.2014, 5.3)

      When running my Qt applications I sometimes get the following message in den debug console:

      [C] unknown:0
      QWindowsBackingStore::flush: BitBlt failed ()

      Nothing more happens. The application keeps running without problem. Still this is a pretty strange... especially since I would expect any kind of detailed error message in the trailing empty parantheses.

      I found that I can reproduce this by activating the application's window, then pressing <Ctrl+Alt+Del>, then pressing <Esc>.

      I suppose this issue is connected to https://bugreports.qt-project.org/browse/QTBUG-29716 but I do NOT need to use 16bit screen depth and I also do NOT get a crash and I do never get any kind of error message in the parantheses.

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            kleint Friedemann Kleint
            silicomancer Bernhard Lindner
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              Created:
              Updated:
              Resolved:

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