[Wine] [1.3.20]-Option to clip the mouse inside fullscreen windows. ???

[Jesse Palser]

The Wine development release 1.3.20 is now available.

What's new in this release (see below for details):
   - Option to clip the mouse inside fullscreen windows.
...
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Hi,

What does the above new feature do?
If I am running a full screen game
in an emulated virtual desktop window
will it stop the mouse cursor from leaving the window?
(this would fix many games for me)

Thanks!

Jesse