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  1. Qt
  2. QTBUG-41080

grabImage crops image to window size without respecting retina displays

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Details

    • Bug
    • Resolution: Unresolved
    • P4: Low
    • None
    • 5.3.0
    • Testing: QuickTest
    • None
    • Mac OS X with retina display
    • macOS

    Description

      On retina displays, the image returned by TestCase.grabImage() should be twice the size of the image returned on non-retina displays, as every logical pixel is represented by two physical pixels. It is, however, cropped to the size of the window, so pixels exceeding the window size cannot be accessed, although they are visible.

      See the attached test to reproduce the problem.

      Attachments

        1. tst_grabImage.qml
          0.7 kB
          Carsten Henßinger

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-63100 grabToImage: wrong image resolution with high dpi scaling

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

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-84732 Drag.imageSource blurry on High DPI screens

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported
          For Gerrit Dashboard: QTBUG-41080
          # Subject Branch Project Status CR V
          226989,6 Fix TestCase.grabImage cropping on hidpi displays dev qt/qtdeclarative Status: NEW 0 0

          Activity

            People

              qt.team.quick.subscriptions Qt Quick and Widgets Team
              che Carsten Henßinger
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              Dates

                Created:
                Updated:

                Gerrit Reviews

                  There is 1 open Gerrit change