Details
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Type:
Bug
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Status: Open
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Priority:
P3: Somewhat important
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Resolution: Unresolved
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Affects Version/s: 6.2.1
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Fix Version/s: None
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Component/s: GUI: High-DPI, GUI: Window management, QPA: Windows
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Labels:None
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Environment:Windows 10 Pro 20H2, Screen Setup: Main Display: 1920x1080, scaling 150%, Display 2: 1920x1080, scaling 100% (on the left of the main display)
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Platform/s:
Description
In my setup I have the main HD display scaled at 150% and the HD display on the left scaled at 100%.
I have a QQuickWindow placed on the left screen at (-500, 384) with size (500, 100) that eventually must reach the position (500,384) keeping its size.
In the first scenario, I have a timer that increase the x coordinate so that eventually the window is on the primary screen. As you see from the log, when the window crosses the edge its size becomes 333 (500/1.5 devicePixelRatio of the primary screen).
In the second scenario, I make one call to SetWindowPos to set the final position and you can see from the log that this time the width is 500.
I guess the problem lies in the chicken/egg situation that getting the final screen depends on the geometry, but the geometry depends on the screen the window is on.
Attachments
Issue Links
- duplicates
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QTBUG-98528 QQuickWindow:setPosition not working correctly when crossing screens
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- Reported
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