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Window content renders blurry when targeting .NET 7
See original GitHub issue- .NET Core Version: 7.0.0-preview.4.22229.4
- Windows version: Windows 11 21H2 250% scaling - this might be key in order to repro
- Does the bug reproduce also in WPF for .NET Framework 4.8?: No
- Is this bug related specifically to tooling in Visual Studio (e.g. XAML Designer, Code editing, etc…)? No
Problem description: After changing .NET to ver. 7.0.0 preview 4 window started rendering blurry
Actual behavior: Window is blurry
Expected behavior: Window should not be blurry
Minimal repro:
- Create new WPF Application project targeting 7.0.0 (Preview) framework
- Add
<Button Content="Button in .NET 7.0.0-preview.4.22229.2" VerticalAlignment="Top"/>betweenGridtags - Run
Issue Analytics
- State:
- Created a year ago
- Reactions:2
- Comments:6 (3 by maintainers)
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@ThomasGoulet73 Yes, I can confirm that calling https://github.com/dotnet/wpf/blob/e8767ef7cf95e3edf86f0600a85c2cc6270cb530/src/Microsoft.DotNet.Wpf/src/PresentationCore/ModuleInitializer.cs#L49-L50 fixes the issue
@BieleckiLtd This is probably caused by a bug in high DPI initialization in .NET 7.0 Preview 4 caused by #5765 which should be fixed in the next preview by #6245. Could you try calling SetProcessDPIAware at the start of your application (Before you show a Window) and see if it fixes your bug ?