C++ Programming : Program 20-A
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.
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