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  1. Qt
  2. QTBUG-39084

Windows: qt_imageFromWinHBITMAP does not convert a HBITMAP correctly

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 5.3.1
    • 5.2.1, 5.3.0 RC1
    • Extras: Win
    • None
    • Windows
    • d3d8ade87b74c541cc3baa67b9972d6471864c25 (stable. 26.5.2014, 5.3.1)

    Description

      Windows: qt_imageFromWinHBITMAP does not convert a HBITMAP correctly, particularly with respect to the alpha channel.

      Attached is an example that reproduces the problem with an image too.

      Attachments

        1. main.cpp
          0.9 kB
          Andy Shaw
        2. qtbug39084.tar
          380 kB
          Friedemann Kleint
        3. test.bmp
          370 kB
          Andy Shaw

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-39359 QtWin::imageFromHBITMAP incorrectly supposes that the format of the HBitmap is always Format_ARGB32_Premultiplied

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed

          Activity

            People

              kleint Friedemann Kleint
              andysh Andy Shaw
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              Dates

                Created:
                Updated:
                Resolved: