mouse.cpp

在DOS利用Watcom c++的保护模式4G内存

#include <i86.h>
//# include	"os.h"
#include <stdio.h>
#include "mouse.h"

CMouse::CMouse():m_bExist(1),m_nCurX(-1),m_nCurY(-1),m_nStatus(-1)
{
}

CMouse::~CMouse()
{
}

int CMouse::GetStatePosi( int &x, int &y)
{
	union REGS r;
	int nFlag(0);

	r.w.ax=0x0003;
	int386(0x33,&r,&r);

	x	= r.w.cx;
	y	= r.w.dx;
	nFlag = r.w.bx;

	if( m_nStatus != nFlag )
		nFlag |= 0x200;

	if( x != m_nCurX || y !=m_nCurY )
		nFlag |= 0x100;

	m_nCurX = x;
	m_nCurY = y;
	m_nStatus = r.w.bx;

	return nFlag;
}

int CMouse::Init()
{
	union REGS r;
	r.w.ax=0x0000;
	int386(0x33,&r,&r);
	if(r.w.ax==0)
		m_bExist=0;
	else
		m_bExist=1;

	return m_bExist;
}

void CMouse::MoveTo(int x,int y)
{
	union REGS r;
	r.w.ax=0x0004;
	r.w.cx=x;
	r.w.dx=y;
	int386(0x33,&r,&r);
}


void CMouse::Show( int bShow)
{
	union REGS r;
	r.w.ax= 0x0002-bShow;
	int386(0x33,&r,&r);
}

void CMouse::SetRang(short x1, short y1, short x2, short y2)
{
	union REGS r;
	r.w.ax=7;
	r.w.cx=x1;
	r.w.dx=x2;
	int386(0x33,&r,&r);

	r.w.ax=8;
	r.w.cx=y1;
	r.w.dx=y2;
	int386(0x33,&r,&r);

}