Re: [PATCH 0/1] MR825: winex11.drv: optimize repeated ClipCursor calls

[Rémi Bernon (＠rbernon)]

I don't think this will work very well, there's several things that can happen if you do this:

* X11 may override cursor grab without notifying the application, you will end up with the mouse free to move when the game and Wine still believe it's constrained.
* Several games are doing `ClipCursor(NULL); ClipCursor(&rect);` in sequence, effectively changing the rect on every frame.

I believe the slowdown comes from the Win32 window creation, not really from `XGrabPointer` requests, so that should be optimized instead.