From:	Walter Luke <NightWatchman AT Sacrilege DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: keyboard problem!
Date:	Tue, 02 Dec 1997 01:02:18 -0500
Organization:	Shadows http://shadows.sacrilege.com
Lines:	53
Message-ID:	<6608mn$g5u@mtinsc05.worldnet.att.net>
References:	<65iu4r$ca1$1 AT yeppa DOT connect DOT com DOT au>
Reply-To:	NightWatchman AT Sacrilege DOT com
NNTP-Posting-Host:	12.68.12.119
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Paul Cartwright wrote:

> does anyone know an algorithm that will get the scan code from a
> pressed key?

   The procedure below will gets the scan code from a pressed key, and
prints it to screen if it's not in the normal character set (i.e. if
it's something strange like the arrow keys). I hope this helps...

#include "dos.h"
#include "stdio.h"

char y;

getkey(void) {

union REGS r;

r.h.ah = 0;
return int86(0x16, &r, &r);

}

main() {

        union scan {
          int c;
          char ch[2];
        } sc;


        do {
          sc.c=getkey();
          if(sc.ch[0]==0)
            printf("special key number %d \n", sc.ch[1]);
          else
            {
            putchar(sc.ch[0]);
            printf("\n");
            }
        } while(sc.ch[0]!='q');

       }



--
Walter Luke aka "Night Watchman"

mailto:NightWatchman AT Sacrilege DOT com
Visit Shadows at http://shadows.sacrilege.com

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