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  1. Qt
  2. QTBUG-57410

Copying image to clipboard removes alpha channel

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • P2: Important
    • None
    • 5.7.0
    • QPA: Windows
    • Windows

    Description

      When copying an image that has alpha channel to the clipboard, the alpha channel is removed. Format of the image does not seem to have an effect in this case, neither Format_ARGB32_Premultiplied or Format_ARGB32 work.

      Steps to reproduce:

      • Run attached sample
      • Press button to create image and copy it to clipboard
      • Observe the copied image through clipboard viewer or paste the image to a program that supports alpha channeled images
      • EXPECTED: Image is properly pasted / looks ok in the clipboard viewer
      • ACTUAL: Instead of alpha channel, the alpha area is totally black

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-11463 Windows: QClipboard failed to set QImage with transparency

          • 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. QTBUG-47656 [Reg 5.3->5.4] QClipboard fails to create DIB from image with transparency

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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              kleint Friedemann Kleint
              jussi_witick Jussi Witick
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              Dates

                Created:
                Updated:
                Resolved:

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