To operate buttons of Mouse and restrict mouse area

#include<dos.h>

#include<graphics.h>

#include<iostream.h>

#include<conio.h>

union REGS in,out;

int callmouse()

{

in.x.ax=1;

int86(51,&in,&out);

return 1;

}

void mpos(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 mousehide()

{

in.x.ax=2;

int86(51,&in,&out);

}

void setposi(int &xpos,int &ypos)

{

in.x.ax=4;

in.x.cx=xpos;

int86(51,&in,&out);

}

int main()

{

int x,y,cl,a,b;

int gdriver=DETECT,gmode;

initgraph(&gdriver,&gmode,"");

a=100;

b=400;

setposi(a,b);

(a,b);

callmouse();

do

{

mpos(x,4,cl);

gotoxy(10,9);

cout<<"\n*****  possition is  *****\n"<<x<<y;

cout<<"click \n"<<cl;

cout<<"**press any key to hide the mouse**";

}

while(!kbhit());

{

mousehide();

}

cout<<"press any key";

getch();

}

 OUTPUT: