#include<graphics.h>

#include<stdio.h>

#include<conio.h>

#include<dos.h>

union REGS in,out;

int callmouse()

{ in.x.ax=1;

int86(51,&in,&out);

return 1;

}

void setposi(int xp,int yp)

{ in.x.ax=4;

in.x.cx=xp;

in.x.dx=yp;

int86(51,&in,&out);

}

void mouseposi(int *xpos,int *ypos,int *click)

{ in.x.ax=3;

int86(51,&in,&out);

*click=out.x.bx;

*xpos=out.x.cx;

*ypos=out.x.dx;

}

int main()

{

int x,y,cl,prcl,x1,y1,dx,dy;

int g=DETECT,m;

initgraph(&g,&m,"..\\bgi");

cleardevice();

setposi(10,10);

callmouse();

prcl=0;

do

{ mouseposi(&x,&y,&cl);

if(cl==prcl && prcl==1)

{ x1=x; y1=y;

while(cl!=0)

{ mouseposi(&x,&y,&cl); }

dx=x-x1; dy=y-y1;

gotoxy(2,2);

if(dx==0 && dy==0)

{ gotoxy(2,2);

printf("\n\t Mouse Clicked : %+04d,%+04d",x,y);

}

else

{ gotoxy(2,3);

printf ("\n\tMouse dragged (DX,DY): %+04d,%+04d",dx,dy);

}

}

gotoxy(2,5);

printf("\n\tMouse Position is: %03d,%03d",x,y);

prcl=cl;

}while(!kbhit());

getch();

return 1;

}