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  1. Qt
  2. QTBUG-21461

QImage doesn't support ARGB8 BMP files.

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Details

    • Suggestion
    • Resolution: Duplicate
    • P4: Low
    • 5.3.0
    • 4.7.0
    • Image formats
    • None

    • Qt Creator

    Description

      QImage appears to ignore the alpha channel in ARGB-formatted 32-bit Windows BMP Image file. 32-bit bitmaps with alpha channels does exist from the time Vista come (and even earlier). QImage must also support saving images with alpha channel as 32-bit ARGB BMPs.

      Attachments

        1. bmps.zip
          198 kB
        2. Zipped ARGB BMP image.zip
          184 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-35220 If you open this picture with Qt,the effect is wrong.

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed

          Suggestion - Public suggestions QTBUG-22031 Qt to support transparency in BMP's.

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

            People

              kkalland Kim Motoyoshi Kalland (Inactive)
              petersvp Peter Petrov
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              Dates

                Created:
                Updated:
                Resolved:

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