Run your Qt 6 apps on Windows 7/8
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This is Qt 6.7.3 qtbase module backport that runs on Windows 7/8. The repository contains patched source files from the qtbase module. Approach is based on this forum thread but better: many improvements amongst important fallbacks to default Qt 6 behaviour when running on newer Windows.

  • After replacing qtbase source files with the patched ones from this repository, you can compile Qt yourself using compiler and build options you need.
  • You can use our compile_win.pl build script (uses Visual C++ 2022 with OpenSSL 3.0.13 statically linked)
  • You can download our prebuild Qt dlls which also have Qt Designer binary for demonstration

Qt 6.7.3 designer running on Windows 7:

Qt Designer

Known issues:

  • QRhi using DirectX 11/12 is not ported

Older versions:

License

The repository shares Qt Community Edition terms which imply Open-Source terms and conditions (GPL and LGPL).