From:	Mark Slagell <bald_soprano AT nospam DOT usa DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	mouse reset & logitech
Date:	Wed, 17 Sep 1997 19:48:51 -0500
Organization:	the well-basically society
Lines:	34
Message-ID:	<34207A73.7DE7@nospam.usa.net>
NNTP-Posting-Host:	dial22.ppp.iastate.edu
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

The following, I am told, fails to recognize a Logitech mouse driver. 
Does Logitech require some special test, or does somebody see a problem
with this code?  It does reliably detect a Microsoft driver.

There is no libc mouse support, right?

thanks -- Mark



void mouse_reset() {
__dpmi_regs r;
int result;
  r.x.ax = 0;
  __dpmi_int( 0x33, &r );
  result = r.x.ax;

  r.x.ax = 3; __dpmi_int( 0x33, &r );
  mxc = r.x.cx;  /* mxc & myc are globals that store the */
  myc = r.x.dx;  /* pointer's reset (center) position    */

  if( !result ) {
    printf("  No mouse driver detected.\n";
    exit(1);
  }
}



-- 
"There is no theory.  You have merely to listen.  Fantasy is the law." 
  -- Claude Debussey

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