CODE:
#include<graphics.h>
#include<iostream.h>
#include<math.h>
#include<conio.h>
void main( )
{
float x,y,x1,y1,x2,y2,dx,dy,e;
int i,gd,gm;
gd=DETECT;
initgraph(&gd,&gm,"c:\\turboc3\\bgi");
cout<<"Enter the value of x1 and y1 : ";
cin>>x1>>y1;
cout<<"Enter the value of x2 and y2: ";
cin>>x2>>y2;
dx=abs(x2-x1);
dy=abs(y2-y1);
x=x1;y=y1;
e=(dy/dx)-0.5;
putpixel(x,y,15);
for(i=1;i<=dx;i++){
while(e>=0){
y=y+1;
e=e-1;
}
x=x+1;
e=dy/dx+e;
putpixel(x,y,15);
}
getch();
closegraph();
}
