This variable is the Wine's equivalent of the SDL_VIDEODRIVER/
SDL_VIDEO_DRIVER variable in SDL 2 and 3 (it explicitly selects
a list of graphics/video drivers to be used).
--
v2: man: Add documentation for the WINE_VIDEO_DRIVER variable.
explorer: Introduce a new WINE_VIDEO_DRIVER variable.
https://gitlab.winehq.org/wine/wine/-/merge_requests/6301
I've tried implementing this before but importing user32 from ntdll isn't a reliable
thing (so I recently rewrote it using the ntdll equivalents of LoadLibrary() and GetProcAddress())
Note: This is a weird way to implement this function (Windows implements this
in ntdll instead) but that would probably require a user32/ntdll rewrite (so this
is the next best tning to get the application working)
--
v4: ntdll: Implement NtdllDefWindowProc_A().
https://gitlab.winehq.org/wine/wine/-/merge_requests/5236