PROGRAM FOR BOUNDARY FILL ALGORITHM IN COMPUTER GRAPHICS..

//***PROGRAM FOR BOUNDARY FILL ALGORITHM***//
#include<stdio.h>
#include<conio.h>
#include<graphics.h>
void b_fill(int x,int y,int f,int b)
{
int c;
c=getpixel(x,y);
if((c!=b)&&(c!=f))
{

putpixel(x,y,f);
delay(10);
b_fill(x+1,y,f,b);
b_fill(x,y+1,f,b);
b_fill(x+1,y+1,f,b);
b_fill(x-1,y-1,f,b);
b_fill(x-1,y,f,b);
b_fill(x,y-1,f,b);
b_fill(x-1,y+1,f,b);
b_fill(x+1,y-1,f,b);
}
}
//void b_fill(int,int,int,int);
void main()
{
int gd=DETECT,gm;
initgraph(&gd,&gm,"c:\\tc\\bgi");
rectangle(50,50,100,100);
b_fill(55,55,4,15);
getch();
}