MENU in C/C++

Program : NAVIGATIONAL MENU
Platform : Turbo C 3.0Description : It is a program to demonstrate the menu system in C/C++. It also uses navigation through ARROW keys..........!!

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#include<graphics.h>
#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<stdlib.h>
int ch=1;

void menu();
void choice();

int main()
{
menu();
getch();
return 0;
}
////////////////////////////////
////////////////////////////////

void menu()
{
int gdriver = DETECT, gmode,i;

/* initialize graphics mode */
initgraph(&gdriver, &gmode, "c:\\tc\\bgi");
setcolor(2);
for(i=0;i<10;i++){rectangle(10+i,10+i,620+i,460+i);delay(50);}
setfillstyle(1,15);
bar(40,40,600,440);
settextstyle(7,0,5);
outtextxy(270,60,"MENU");
setcolor(4);
settextstyle(1,0,2);
/* 1 */
rectangle(180,145,450,180);
rectangle(185,147,445,178);
/* 2 */
rectangle(180,195,450,230);
rectangle(185,197,445,228);
/* 3 */
rectangle(180,245,450,280);
rectangle(185,247,445,278);
/* 4 */
rectangle(180,295,450,330);
rectangle(185,297,445,328);
/* 5 */
rectangle(180,345,450,380);
rectangle(185,347,445,378);
setcolor(1);
outtextxy(230,150,"1.EDUCATION");
outtextxy(230,200,"2.SPORTS");
outtextxy(230,250,"3.ENTERTAINMENT");
outtextxy(230,300,"4.POLITICS");
outtextxy(230,350,"5.EXIT");
setcolor(9);
rectangle(180,145,450,180);
rectangle(185,147,445,178);
choice();
}

//////////////////////////////////
//////////////////////////////////

void choice()
{
switch(getch())
 { case 'H':
    switch(ch)
   {
     case 2:setcolor(4);
    rectangle(180,195,450,230);
    rectangle(185,197,445,228);
    setcolor(9);
    rectangle(180,145,450,180);
    rectangle(185,147,445,178);
    ch--;
    choice();

     case 3:setcolor(4);
    rectangle(180,245,450,280);
    rectangle(185,247,445,278);
    setcolor(9);
    rectangle(180,195,450,230);
    rectangle(185,197,445,228);
    ch--;
    choice();

     case 4:setcolor(4);
    rectangle(180,295,450,330);
    rectangle(185,297,445,328);
    setcolor(9);
    rectangle(180,245,450,280);
    rectangle(185,247,445,278);
    ch--;
    choice();

     case 5:setcolor(4);
    rectangle(180,345,450,380);
    rectangle(185,347,445,378);
    setcolor(9);
    rectangle(180,295,450,330);
    rectangle(185,297,445,328);
    ch--;
    choice();

     default : choice();
   }

    break;
 case 'P':/*if(ch<5&&ch>=1){ch++;*/
    switch(ch)
   {
     case 1:setcolor(4);
    rectangle(180,145,450,180);
    rectangle(185,147,445,178);
    setcolor(9);
    rectangle(180,195,450,230);
    rectangle(185,197,445,228);
    ch++;
    choice();

     case 2:setcolor(4);
    rectangle(180,195,450,230);
    rectangle(185,197,445,228);
    setcolor(9);
    rectangle(180,245,450,280);
    rectangle(185,247,445,278);
    ch++;
    choice();

     case 3:setcolor(4);
    rectangle(180,245,450,280);
    rectangle(185,247,445,278);
    setcolor(9);
    rectangle(180,295,450,330);
    rectangle(185,297,445,328);
    ch++;
    choice();

     case 4:setcolor(4);
    rectangle(180,295,450,330);
    rectangle(185,297,445,328);
    setcolor(9);
    rectangle(180,345,450,380);
    rectangle(185,347,445,378);
    ch++;
    choice();

     default : choice();
   }

    /*}*/break;
   case 27: exit(0);
   case 13: switch(ch){
case 1:setcolor(MAGENTA);outtextxy(230,150,"1.EDUCATION");
      setcolor(3);outtextxy(200,400,"You selected EDUCATION");getch();exit(0);
case 2:setcolor(MAGENTA);outtextxy(230,200,"2.SPORTS");
      setcolor(3);outtextxy(200,400,"You selected SPORTS");getch();exit(0);
case 3:setcolor(MAGENTA);outtextxy(230,250,"3.ENTERTAINMENT");
      setcolor(3);outtextxy(200,400,"You selected ENTERTAINMENT");getch();exit(0);
case 4:setcolor(MAGENTA);outtextxy(230,300,"4.POLITICS");
      setcolor(3);outtextxy(200,400,"You selected POLITICS");getch();exit(0);
case 5:exit(0);
default : choice;
      }
   default : choice();
 }

}
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