这两天看c的中断，于是把以前用vb做的东西都一个一个翻译过来，不用再去想新的idear，感觉很好。下面是一个tc里面用到鼠标的程序，另外用到了前人做俄罗斯方块的部分函数（其实对时钟中断，我是一点不懂）。程序很短，不过效果还可以。

#include<stdio.h>
#include<graphics.h>
#include<dos.h>
#include<conio.h>

#define TIMER 0x1c

#ifdef __cplusplus
#define __CPPARGS ...
#else
#define __CPPARGS
#endif

int TimerCounter=0;

void interrupt ( *oldhandler)(__CPPARGS);

void interrupt newhandler(__CPPARGS){
    TimerCounter++;
    oldhandler();
}

void SetTimer(void interrupt (*IntProc)(__CPPARGS)){
    oldhandler=getvect(TIMER);
    disable();
    setvect(TIMER,IntProc);
    enable();
}

void CloseTimer(){
    disable();
    setvect(TIMER,oldhandler);
    enable();
}

void mshow(){
    union REGS ireg,oreg;
    ireg.x.ax=1;
    int86(0x33,&ireg,&oreg);
}

void getmxy(double *x,double *y){
    union REGS ireg,oreg;
    ireg.x.ax=3;
    int86(0x33,&ireg,&oreg);
    *x=oreg.x.cx*1.0;
    *y=oreg.x.dx*1.0;
}

resetp(int x,int y,int a,int b){
    cleardevice();
    setcolor(1);
    rectangle(10,10,629,339);
    line(x,y,a,b);
    setcolor(4);
    rectangle(a-5,b-5,a+5,b+5);
    setcolor(2);
    pieslice(x,y,0,360,10);
    setcolor(1);
}

void main(void){
    int gdriver=EGA,gmode=EGAHI,key;
    double ax,ay,vx,vy,px,py,mx,my;
    int curpage=0;
    initgraph(&gdriver,&gmode,"d:\\software\\turboc2");
    vx=0.0,vy=0.0,px=getmaxx()/2.0,py=getmaxy()/2.0,ax=ay=0;
    mshow();
    getmxy(&mx,&my);
    setbkcolor(15);
    setfillstyle(SOLID_FILL,2);
    setactivepage(curpage);
    resetp((int)px,(int)py,(int)mx,(int)my);
    setvisualpage(curpage);
    SetTimer(newhandler);
    while(1){
        if(kbhit())break;
        if(TimerCounter>1){
            TimerCounter=0;
            getmxy(&mx,&my);
            px=px+vx;
            py=py+vy;
            if(px>=629 || px<=10)vx=-vx;
            if(py>=339 || py<=10)vy=-vy;
            vx=vx*0.97+ax;
            vy=vy*0.97+ay;
            ax=(mx-px)*0.01;
            ay=(my-py)*0.01;
            curpage=curpage==0?1:0;
            setactivepage(curpage);
            resetp((int)px,(int)py,(int)mx,(int)my);
            setvisualpage(curpage);
        }
    }
    CloseTimer();
}