[Bug 38958] New: Right mouse click exits fullscreen mode (GTA IV on Steam)

https://bugs.winehq.org/show_bug.cgi?id=38958

Bug ID: 38958
           Summary: Right mouse click exits fullscreen mode (GTA IV on
                    Steam)
           Product: Wine
           Version: 1.7.47
          Hardware: x86
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

I am quite happy with my GTA IV on Steam port so far but I am struggling with
one issue that I am unable to solve.

I noticed the issue later in game when the player has to throw a brick through
a window. A right mouse click (RMB) is required to perform this action.
However, to reproduce this issue you can perform a right moue click also during
normal game play. The first right click performs as expected. Doing it again
exits the fullscreen mode, scales the fullscreen game window, shows the Steam
interface on top of the OS X desktop in the remaining screen area and then
switches back to game fullscreen mode. However after switching back to the game
no more mouse clicks are possible - only key commands and mouse movement work.
It can also happen that the Steam interface partly 
overlaps the game screen.
There is not much the user can do in this situation other than quitting the
game and Steam.

I tried everything to solve this:

- Virtual Desktop
- mwo=force
- grabfullscreen=y

The behavior doesn't change at all, no matter what settings and combination of
seetings.

You can download the port here:
http://portingteam.com/files/file/8218-gta-iv-on-steam/ (Steam and GTA IV
installation required, see: https://www.youtube.com/watch?v=xLeE89sVSxo)