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  1. Qt
  2. QTBUG-109641

QRadiobutton/QCheckBox ugly on rounded non-integer device pixel ratio

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Details

    • Bug
    • Resolution: Fixed
    • P3: Somewhat important
    • None
    • 6.4.0
    • GUI: High-DPI, Widgets: Widgets and Dialogs
    • None
    • Windows 10, 4K monitor with text scaling at 150% (causing a device pixel ratio of 1.5)
    • Windows

    Description

      QRadioButton and QCheckBox look ugly when shown on a monitor where the device pixel ratio was rounded (either up or down) from a non-integer device pixel ratio.

       

      Reproduce by executing the attached code under Windows 10 using a screen with non-integer device pixel ratio. See also enlarged screenshots. The radio buttons look like poorly upscaled bitmaps.

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            owolff Oliver Wolff
            ev E Visser
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            Dates

              Created:
              Updated:
              Resolved:

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