Write a program to create windmill with speed control speed up have press ‘h’ speed decrease have press ‘d’ you want to exit press ‘E’.

#include<stdio.h>

#include<conio.h>

#include<graphics.h>

#include<dos.h>

void main()

{

int ch;

int gdriver=DETECT,gmode;

int xc,yc,i,speed=250;

int stangle=0,endangle=30,radius=100;

initgraph(&gdriver,&gmode,"c:\\tc\\bgi");

xc=getmaxx()/2;

yc=getmaxy()/2;

while(1) {

stangle=0;

endangle=30;

for(i=0;i<12;i++)

cleardevice();

setfillstyle(i,i);

circle(xc,yc,10);

outtextxy(250,100,"pawanchakki");

outtextxy(10,5,"Er.UmeshSohaliya");

outtextxy(10,15,"ph-9978748582");

outtextxy(10,30,"press h to increase sped");

outtextxy(10,40,"press d to dcrease sped");

outtextxy(10,50,"press e to exit");

setbkcolor(RED);

rectangle(xc-5,yc,xc+5,yc+200);

rectangle(xc-20,yc+200,xc+20,yc+225);

pieslice(xc,yc,stangle,endangle,radius);

pieslice(xc,yc,stangle+120,endangle+120,radius);

pieslice(xc,yc,stangle+240,endangle+240,radius);

stangle=endangle;

endangle +=30;

setcolor(GREEN);

delay(speed);

if(kbhit())

{

ch=getch();

if(ch=='h')

if(speed>10)

speed -=20;

if (ch== 'd')

if(speed<1000)

speed +=10;

if(ch=='e')

exit(0);

}

setcolor(YELLOW);

 }

closegraph();

getch();

}