[PATCH v2 0/2] MR7024: Disable native titlebar while lacking enough space for SM_CYCAPTION.

[Jactry Zeng (＠jactry)]

On Windows, applications can disable titlebar by extending the client rect to a bigger rect which will cover the area of the titlebar from WM_NCCALCSIZE: https://learn.microsoft.com/en-us/windows/win32/dwm/customframe#removing-the...
Our current x11 and Mac driver doesn't handle this case.

Attached is a test case for reproducing the issue.

[hide_caption.c](/uploads/46a725e32569a6a0a929a0f183cf9ed8/hide_caption.c)

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  v2: winemac.drv: Disable native titlebar while lacking enough space for SM_CYCAPTION.
      winex11.drv: Disable native titlebar while lacking enough space for SM_CYCAPTION.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7024