ive found not all games behave the same.
some focus the mouse propperly, ad you cant even get if out of the game window (screen) others dont focus it atall and you are forever clicking out of the window
of the latter there are a few options:
- mouse works as normal IN GAME even when off the game screen (mouse look etc)
- mouse doesnt work atall IN GAME when off the screen, but game doesnt minimise (RTS tend todo this) this alows you to do other things in other windows as normal sometimes trigers what i call a re-forcus on both screens (brief pause and re-sync both screens like when you change res)
- clicking anywhere outside game window minimises game. howw the game reacts depends on the game... usualy they minimise peacefully. some tend to crash or be unable to re-gain mouse focus.
some examples;
Wow - run windowed with the maximised option. behaves perfectly, but wont enable ATI 3d clocks.
NWN - doesnt grab mouse propperly, becomes hard to do things close to sides of the screen, if you click out, it doesnt minimise BUT when you click back it rarely grabs KB/mouse focus making it un-usable. akes a lot of ALT+tab to egt it working...
DS2 - much the same as NWN only the lack of use of the screen edge becomes infuriating!
NFSU - behaves pretty well. sometimes minimises, sometimes grabs mouse propperly.. usually get issues with "stuck" keys, eg, you hold left, click out of game, go back and left will keep being held even if you let go. - have to tap t a few times to release.
UFO Afterlight - running full screen grabs mouse propperly, you cant get out of game window. running windowed - doesnt enable ATI 3d clocks, ALSO - (important) only 1 screen will tend to work, and it seems random per computer. i can only use windowed on the secondary screen, but my housemate can only use on primary!