[Bug 31702] Mouselook (raw input) is bound to a box every other click in Guild Wars 2

http://bugs.winehq.org/show_bug.cgi?id=31702

--- Comment #26 from voidcastr  2012-09-24 02:48:12 CDT ---
As far as I can tell, "ClipCursor( NULL );" is only called when quitting the
game.

Concerning WM_X11DRV_CLIP_CURSOR being sent from mouse.c with SendMessageW or
SendNotifyMessageW, I made the following observations:

When moving the mouse WITHOUT pressing a button,
    ungrab_clipping_window()
is triggered on every mouse move event, causing WM_X11DRV_CLIP_CURSOR to get
spammed via SendMessageW.

Right when pressing a mouse button (and not yet moving the mouse), 
    grab_clipping_window(RECT)
is called, sending WM_X11DRV_CLIP_CURSOR with SendMessageW.

When moving the mouse with a button held down, WM_X11DRV_CLIP_CURSOR is never
sent.

When releasing a mouse button,
    ungrab_clipping_window()
sends WM_X11DRV_CLIP_CURSOR with SendMessageW. Subsequently, as expected from
the comments,
    clip_cursor_notify(HWND, HWND)
is called sending WM_X11DRV_CLIP_CURSOR with SendNotifyMessageW.

I don't know how to interpret this behavior.