Re: About Keyboard hooking & KBDLLHOOKSTRUCT

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#7408

From: Bob Gonder
Date: Thu, 03 Feb 2005 17:48

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Vladimir Stefanovic wrote:

>Can someone please interpret me something about Keyboard
>Hooking. When I press a key, is it true that the structure
>KBDLLHOOKSTRUCT saved also the modifier (Alt, Shift, ...)
>state? I need this because I want to SendMessage() to the
>main app only when, for example Alt is pressed also.

See the subject: KeyboardProc()
in WIN32.HLP.


>What means 'return 1',

It tells Windows to drop the message.
If you return 0, then Windows will pass the key to the target window.


> and is there a way to extend my code (below)
>to work with checking for Alt?

Check bit 29 (zero-based) of lparam.
1 == Alt

   if ( lParam & (1<<29) )
	ItIsAnAlt=true;

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From: Bob Gonder <notbg@notmindspring.invalid>
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Subject: Re: About Keyboard hooking & KBDLLHOOKSTRUCT 
Date: Thu, 03 Feb 2005 09:48:28 -0800
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