Program to plot pixels.

#include <conio.h>
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>

void main (int)
{
int gdriver=DETECT,gmode,errorcode; //Requesting auto-detection.
int midx,midy,x;
//Initializing graphics and local variables.
initgraph(&gdriver,&gmode,"d:\\bc3\\bgi");
//Reading result of initialization.
errorcode=graphresult();
if(errorcode!=grOk)
//An error occurred.
{
printf("Graphics error occurred : %s \n",grapherrormsg(errorcode));
printf("Press any key to stop : ");
getch();
exit(1); //Terminate the program due to error.
}
for(x=40;x<120;x=x+10)
{
putpixel(x,200,14); //Plots 1 pixel at position(x,200) with YELLOW color(14)
getch();
}
}

This graphics program plots eight yellow-colored pixels on the screen using the 'putpixel' command.