#include <graphics.h>

#include <stdlib.h>

#include <iostream.h>

main()

{

const float pi=3.1415;

initwindow(640,480);

int a=0,x,y;

while(a==0)
{
x=mousex( );
delay(1);
y=mousey( );
delay(1);

if (1)
lineto(x,y);
};

system("pause");
closegraph();
}