[PATCH 0/2] MR6006: dwmapi: Simulate DwmFlush blocking behavior.

[Grazvydas Ignotas (＠notaz)]

The documentation states it's a blocking call. There are reports of it
being used for WaitForVBlank-like purposes [1]. Without blocking Softube
VST plugin logic breaks and they never update their UIs.

[1] https://news.ycombinator.com/item?id=34501612

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56935

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6006