[PATCH v3 0/5] MR2637: winex11: Use messages instead of user callbacks and handle them in the default IME UI window procedure.

[Rémi Bernon]

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  v3: winex11: Use an IME UI message to set composition status.
      winex11: Use an IME UI message to set cursor pos.
      winex11: Use an IME UI message to get cursor pos.
      winex11: Use an IME UI message to set open status.
      win32u: Keep the IME UI window in win32u struct imc.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2637