[Bug 6971] Mouse "escapes" window or is confined to an area in the full screen program NO HACKS PLEASE

http://bugs.winehq.org/show_bug.cgi?id=6971

--- Comment #446 from Michael Abbott  2011-03-14 11:51:23 CDT ---
(In reply to comment #445)
> The solution in this case is to only run on a single monitor for now, but I
> agree, if a fullscreen app has focus, the mouse should not be able to leave
> that window.

Is it possible with xinput2 to configure the mouse for exclusive capture *when*
the application has keyboard focus?  Or is this going to require delicate
negotiation with the window manager as well?  (Am painfully ignorant in this
area.)

I think it will be better to implement exclusive mouse event capture rather
than trying (and probably failing) to continually warp the mouse into the
application window.  It would be nice (would presumably require Xserver
support) if the mouse stayed inside the window as well, but with exclusive
capture of mouse events that would be just a "nice to have", not necessary.

Can someone who understands the underlying API and interactions say what's
current possible here?  The current patch seems *nearly* there!