RE: [GD-Windows] GetAsyncKeyState / DI

[Andy G. <an...@mi...>]

Why use GetAsyncKeyState or DirectInput for typical keyboard handling at =
all?

You are going to get WM_KEYUP and WM_KEYDOWN messages all the time - =
it's pretty easy to store these results in an array - then you can have =
perfect up/down/pressed notifications that do not have any input focus =
issues.

Andy.

-----Original Message-----
From: Ignacio Casta=F1o [mailto:cas...@ya...]=20
Sent: Wednesday, November 06, 2002 10:10 AM
To: gam...@li...
Subject: RE: [GD-Windows] GetAsyncKeyState / DI


Wayne Coles wrote:=20
> Unfortunately the remarks section inside the MSDN documentation go on=20
> to
> say:
>=20
> "Although the least significant bit of the return value indicates=20
> whether the key has been pressed since the last query, due to the=20
> pre-emptive multitasking nature of Windows, another application can=20
> call GetAsyncKeyState and receive the "recently pressed" bit instead=20
> of your application. The behavior of the least significant bit of the=20
> return value is retained strictly for compatibility with 16-bit=20
> Windows applications (which are non-preemptive) and should not be=20
> relied upon."
>=20
> So you can't really rely upon this bit being set correctly.

Exactly, that's what I meant, the interface of GetAsyncKeyState is nice, =
but the real behaviour is not.


Ignacio Casta=F1o
cas...@ya...


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