#include <stdio.h> #include <stdlib.h> #include <graphics.h> #include <conio.h> void main(){ int gdriver=DETECT,gmode; int left=200,top=200,right=700,bottom=700,color=15,pat=8; initgraph(&gdriver,&gmode,\"\"); cleardevice(); while(!kbhit()){ setfillstyle(random(pat),random(color)); bar(random(left),random(top),random(right),random(bottom)); delay(250); } closegraph(); }