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  1. Qt
  2. QTBUG-83649

QPA: Windows: Window needs relayout after DPI changes

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    • Icon: Suggestion Suggestion
    • Resolution: Fixed
    • Icon: P4: Low P4: Low
    • None
    • 5.14, 5.15
    • QPA: Windows
    • None
    • Windows

      If you change DPI from 100% to 300% (for example) or vice versa, the widgets in a window will be in wrong position, but that's because the window is not repainted in time, they are in the correct position actually.

      It's easy to reproduce, just change the DPI several times, try 100% to 300% (or vice versa), not 100% to 125%

      I have read QPA's source code, it's not enough to call SetWindowPos only in WM_DPICHANGED. After changing the window size, a relayout is needed.

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            kleint Friedemann Kleint
            wangwenx190 赵 宇航
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