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To: python-list@python.org
From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: Simulate Keyboard keypress Delay
Date: Wed, 13 Feb 2013 18:39:21 -0500
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Xref: csiph.com comp.lang.python:38833

On Wed, 13 Feb 2013 11:47:36 -0800 (PST), DaGeek247
<imageek247@gmail.com> declaimed the following in
gmane.comp.python.general:

> I am using the windows api feature getasynckeystate() to check the status of every key pressed; like this;
> 
> #always checking
> while(True):
>     #iterate through list of ascii codes
>     for num in range(0,127):
>         #if ascii code key is being pressed
>         if win32api.GetAsyncKeyState(num):
>             #do stuff
> 
	Wouldn't GetKeyboardState
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646299%28v=vs.85%29.aspx
work better? Grab all the keys at once into an array, then scan the
array for status...

> This works great, almost. The issue that comes up now is that every time i press a key, the code grabs two or three key presses.
> 
> So i tried making sure that repeated keys weren't pressed repeatedly;

	<snip> 

> this works great, but It won't record stuff like 'look' or 'suffer' because it doesn't record repeated keys. So I try doing a delay instead;

	<snip> 

> this almost works, but I end recording some double keypresses, and missing others. Does anybody have any suggestions?

	Off hand, the simplest scheme I could think of is, when you detect a
key press, you loop over it until you detect the key release -- only
then do you start scanning for other keys.

	IOWs, you should not be triggering on the state itself, but on the
change of state in both directions.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/