From: Michael Stewart <michael DOT stewart AT capgemini DOT co DOT uk>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: kbpeek() in DJGPP - C version only..
Date: Fri, 23 Apr 1999 15:32:33 +0100
Organization: Cap Gemini Uk
Lines: 32
Message-ID: <37208435.637A@capgemini.co.uk>
References: <37207CDC DOT B71F192B AT mdh DOT se>
NNTP-Posting-Host: hgty.capgemini.co.uk
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Trace: hagen.cloud9.co.uk 924877782 30581 194.42.240.2 (23 Apr 1999 14:29:42 GMT)
X-Complaints-To: abuse AT usenet DOT co DOT uk
NNTP-Posting-Date: 23 Apr 1999 14:29:42 GMT
X-Mailer: Mozilla 3.01 (Win95; I)
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Dan Levin wrote:
> 
> Hello !
> 
> I wonder if anybody has got a code snippet for "peeking" into the
> keyboard buffer, written in C (C-style only, no iostream...) ? I've done
> some coding myself - but I'm not satisfied with it. I'd like a function,
> say:
> 
> int kbpeek();
> 
> that returns the ASCII code of the top charcter in the kb buffer. The
> more ANSI C, the better - but I suppose you'll have to go down to
> __dos_int() calls, at the least...or is assembler the only solution...?

I've not tried it but this may work.

int kbpeek () {
   int q = 0;

   if (kbhit ()) {
      q = getc(stdin);
      ungetc(q);
   }

   return q;
}

Michael Stewart
www.freeserve.co.uk/
mike AT reggin DOT freeserve DOT co DOT uk
"Just because you're paranoid, doesn't mean they're not after you"