Mail Archives: djgpp/1998/05/02/22:04:47
jan åge johnsen [iC] writes:
>ok, I have understood that windows and allegro dosen't allways fit very
>well, especial in hig resoultion modes (for some machines), well I was
>thinking of is there anyway of trapping alt-tab, alt-space, alt-enter
>presses change to a working resolution(with win95) and then change to
>windows, so that I would allow switching to windows without chrasing my
>program ?
The Interrupt List decribes various hook functions that might be useful
for this, but it isn't totally clear whether they will work under win95,
or only 3.1. At best I think you would only be able to disable the tab
altogether, because even if you could hook the switch event, there would
be no safe way to save the program state from this. It would require a
complete shutdown of the Allegro graphics system, which cannot safely be
done from inside an interrupt call.
Most win95 systems handle the switching quite happily, though (myself, I
have yet to meet one that doesn't). It seems like a very minor thing to
be concerned about: if your drivers don't support it, just don't hit
alt+tab :-)
--
Shawn Hargreaves - shawn AT talula DOT demon DOT co DOT uk - http://www.talula.demon.co.uk/
"Pigs use it for a tambourine" - Frank Zappa
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