1 #include
     
      //鼠标  2 #include
      
         3 #include
       
          4 int init();  5 int read_mouse();  6 void cursor();  7 void newxy();  8 int main()  9 { 10     int buttons,x,y; 11     char str[100]; 12     int driver=VGA; 13     int mode=VGAHI; 14     initgraph(&driver,&mode,""); 15     cleardevice(); 16     setfillstyle(SOLID_FILL,BLUE); 17     bar(1,1,639,478); 18     outtextxy(3,15,"move mouse using any button."); 19     outtextxy(285,15,"quit"); 20     setwritemode(XOR_PUT); 21     if(init(2,638,8,477)==0) 22     { 23         printf("Mouse or Driver Absent,Please install!"); 24         delay(5000); 25         closegraph(); 26         exit(1); 27     } 28     x=320; 29     y=240; 30     cursor(x,y); 31     for(;;) 32     { 33         newxy(&x,&y,&buttons); 34         if(x>=280&&x<=330&&y>=12&&y<=33&&buttons) 35         { 36             cleardevice(); 37             closegraph(); 38             exit(1); 39         } 40     } 41 } 42 void cursor(int x,int y) 43 { 44     int x1,y1,x2,y2; 45     x1=x-4; 46     y1=y+4; 47     x2=x-3; 48     y2=y+3; 49     line(x1,y,x2,y); 50     line(x,y1,x,y2); 51 } 52 int init(int xmin,int xmax,int ymin,int ymax) 53 { 54     union REGS regs; 55     regs.x.ax=0; 56     int86(51,&regs,&regs); 57     if(regs.x.ax==0) 58         return 0; 59     regs.x.ax=7; 60     regs.x.cx=xmin; 61     regs.x.dx=xmax; 62     int86(51,&regs,&regs); 63     regs.x.ax=8; 64     regs.x.cx=ymin; 65     regs.x.dx=ymax; 66     int86(51,&regs,&regs); 67     return -1; 68 } 69 int read_mouse(int *mx,int *my,int *mbutton) 70 { 71     union REGS regs; 72     int x0=*mx,y0=*my,button0=*mbutton; 73     int xnew,ynew; 74     do{regs.x.ax=3; 75         int86(0x33,&regs,&regs); 76         xnew=regs.x.cx; 77         ynew=regs.x.dx; 78         *mbutton=regs.x.bx; 79     }while(xnew==x0&&ynew==y0&&*mbutton==button0); 80     *mx=xnew; 81     *my=ynew; 82     switch(*mbutton) 83     { 84         case 0:return 0; 85         case 1:return 1; 86         case 2:return 2; 87         case 3:return 3; 88         default:return 4; 89     } 90 } 91 void newxy(int *mx,int *my,int *mbutt) 92 { 93     int ch,xx0=*mx,yy0=*my; 94     int xm,ym; 95     ch=read_mouse(&xm,&ym,mbutt); 96     cursor(xx0,yy0); 97     cursor(xm,ym); 98     switch(ch){ 99         case 0:break;100         case 1:circle(xm,ym,6);break;101         case 2:rectangle(xm-6,ym-6,xm+6,ym+6);break;102         default:putpixel(xm,ym,7);break;103     }104     *mx=xm;105     *my=ym;  106 }