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From: bjoern@drdhh.hanse.de (Bjoern Kriews)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Simulating keypress
Message-ID: <2654.04.91@drdhh.hanse.de>
Date: 8 Apr 91 17:21:34 GMT
References: <1991Apr5.151946.25763@etek.chalmers.se>
Organization: Digital Island
Lines: 35

From article <1991Apr5.151946.25763@etek.chalmers.se>, by fabian@etek.chalmers.se (Martin Fabian):
> 
> Is there any (legal) way to simulate a keypress from inside
> a program. 

This is not too legal, but it works:

'io' is Iorec(KBD);
'bits' are the special keys
'scan' is the keycode to be written 
'k_xx' are the Keytbl() scan->ascii tables.

void queue_key(unsigned int scan, unsigned int bits)
{
     unsigned int next;
     if( ( next = io->ibuftl + 4 ) >= io->ibufsiz )
          next = 0;
     if( next == io->ibufhd )
          return;
     *(int*)((char*)io->ibuf+next  = scan | bits << 8;
     *(int*)((char*)io->ibuf+next+2)    =
     ( bits & KB_CAPS ? k_cl
                : bits & ( KB_SHIFTL | KB_SHIFTR ) ? k_sh
                                       : k_us
     ) [scan];
     io->ibuftl = next;
}

Hope that helps,
	Bjoern


---
bjoern@drdhh.hanse.de = Bjoern Kriews / Stormsweg 6 / 2000 Hamburg 76 / FRG
"gaaga mahwe Bjoern urgl ufzae Turbo-C bnub"     (J. Willamowius)