https://bugs.winehq.org/show_bug.cgi?id=38087
--- Comment #6 from Stefan Dösinger stefan@codeweavers.com --- Also, the ClipCursor call is wrong from a technical point of view, but it is a really nice feature we should keep. Windows does not clip the cursor in fullscreen mode. This can be observed when running a fullscreen game on a dual head setup. If you don't have two monitors you can observe it by reading forum posts by Windows users complaining about their mouse pointer leaving the game if they have two monitors.