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  1. Qt
  2. QTBUG-103733

[Windows] setProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2) failed on certain machines

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Details

    • Windows
    • 4a2c31103c (qt/qtbase/dev) 4a2c31103c (qt/tqtc-qtbase/dev) 9e6f83307d (qt/qtbase/6.4) 9e6f83307d (qt/tqtc-qtbase/6.4) 6e6a263528 (qt/qtbase/6.3) 6e6a263528 (qt/tqtc-qtbase/6.3)

    Description

      There are warnings in users logs. 

      setProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2) failed: COM error 0x57 (Unknown error 0x057)

      It's not reproduced for me locally, but I suppose it may happen on some legacy Win 10 editions.

      0x057 error is ERROR_INVALID_PARAMETER, so it seems as DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 just is not supported on certain user's machines.

      According to MSDN, DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 is supported only since Creators Update of Windows 10, and is not available on earlier versions of the operating system. https://docs.microsoft.com/en-us/windows/win32/hidpi/dpi-awareness-context

      Attachments

        Issue Links

          relates to

          Suggestion - Public suggestions QTBUG-68712 Use new Windows API for setting high DPI awareness

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2062 [Windows] setProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2) failed with 0x5

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. PYSIDE-2105 [Windows] setProcessDpiAwarenessContext failed after importing pyautogui

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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              sorvig Morten Sørvig
              studiosus Vladimir Belyavsky
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              Dates

                Created:
                Updated:
                Resolved:

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