Window transparency issue on Windows 11
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Dear QT Community, I am a developer, but not a QT developer, so my apologies if I ask stupid questions. I encountered an issue with an existing QT based application that uses OpenGL to draw 3D content. This application is based on QT 5.9.2. I have access to the source code and I wonder if I have to change the source and/or simply rebuild the app with newer QT binaries.
If this application is used on Windows 10 (tested with different PCs and graphics cards and graphics drivers), the window borders and background is solid. Everything works as expected.
On Windows 11, portions of the main window (e.g. titlebar) becomes fully transparent. Even in the 3D rendering sections(lower right corner), the desktop content is visible.What could be the reason for this? Tested with AMD, NVIDIA, and Intel GPUs.
Thank you so much for your help.
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Hi and welcome to devnet,
5.9.2 is quite old with respect to Windows 11, did you try with a more recent version such as 5.15.2 ?
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@SGaist
No, I haven't tried it yet because there is currently no dev system set up to build the source at the moment.
As this might be quite some work, I hoped for somebody to recognize this issue so that I could estimate how difficult it might be to fix the issue.
