From:	"Marcus" <mesthlm AT hem DOT passagen DOT se>
Newsgroups:	comp.os.msdos.djgpp
Subject:	SV: System hangs when I exit my program
Date:	Wed, 16 Feb 2000 03:14:46 +0100
Organization:	Telenordia
Lines:	58
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Here is the mouse.cpp file again in plain text.
Why does it make my program hang on shutdown?

#include <dpmi.h>
#include <stdio.h>
#include <go32.h>

#include "mouse.h"

static __dpmi_regs        callback_regs;
static _go32_dpmi_seginfo callback_info;

bool initmouse(void)
{
  __dpmi_regs regs;

  regs.x.ax = 0;
  __dpmi_int(0x33, &regs);
  if(regs.x.ax != 0xFFFF) return false;

  callback_info.pm_offset = (long)mousecallback;
  if (_go32_dpmi_allocate_real_mode_callback_retf(&callback_info,
&callback_regs)) return false;
  regs.x.ax = 0xC;
  regs.x.cx = 63;
  regs.x.es = callback_info.rm_segment;
  regs.x.dx = callback_info.rm_offset;
  __dpmi_int(0x33, &regs);

  _go32_dpmi_lock_data(&callback_info, sizeof(callback_info));
  _go32_dpmi_lock_data(&callback_regs, sizeof(callback_regs));

  ok_mouse = true;
  return true;
}

void uninitmouse(void)
{
  __dpmi_regs regs;
  regs.x.ax = 0xC;
  regs.x.cx = 0;
  regs.x.es = 0;
  regs.x.dx = 0;
  _go32_dpmi_set_protected_mode_interrupt_vector(0x33, &old_mouse_handler);
  _go32_dpmi_free_real_mode_callback(&mouse_handler);
  ok_mouse = false;
}

void mousecallback(__dpmi_regs *regs)
{
  // Some code here
}

--
/regards Marcus

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