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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
        2. test.bmp
          370 kB
        3. qtbug39084.tar
          380 kB

        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
          For Gerrit Dashboard: QTBUG-39084
          # Subject Branch Project Status CR V
          85841,2 Windows: Fix qt_imageFromWinHBITMAP(). stable qt/qtbase Status: MERGED +2 0

          Activity

            People

              kleint Friedemann Kleint
              andysh Andy Shaw
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              Dates

                Created:
                Updated:
                Resolved:

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