Logo 
Search:

C++ Programming Articles

Submit Article
Home » Articles » C++ Programming » Mouse ProgrammingRSS Feeds

Program of virtual piano

Posted By: Easy Tutor     Category: C++ Programming     Views: 16286

Write a program of virtual piano which works like real piano.

Code for Program of virtual piano in C++ Programming

#include<stdio.h>
#include<dos.h>
#include<conio.h>
#include<stdlib.h>
#define SHOW 1
#define HIDE 2
union REGS input,output;
class piano
{
 public:int BIGKEY,MIDKEY,back,border;
    piano()//init constructor
    {
        BIGKEY=15;
        MIDKEY=1;
        back=7;
        border=15;
    }
}color;
void drawpiano(int x,int y);
int check_xy(int x,int y);
void BOX(int c,int r,int c1,int r1,int col);
int initmouse();
void setupscreen();
void pointer(int on);
void restrictmouse(int x1,int y1,int x2,int y2);
void check_keys(int x,int y);
void getmouse(int *button,int *x,int *y);
float freq[7] = {130.81, 146.83, 164.81, 174.61,196, 220, 246.94 } ;
int n=0,a=4,backcolor=2,exitcode=1;
void showbar(int t)
{
 if(t>65) t=65;
 if(t<1) t=1;
 textcolor(15);
 for(int q=0;q<=t;t++)
 {
    gotoxy(3+q,4);
    cprintf("Û");
 }
}
void main()
{
 int b,x,y,key;
 char ch;
 if(initmouse()==-1)
 {
    clrscr();
    printf("\n\nNO MOUSE !\n\n");
    exit(1);
 }
 pointer(SHOW);
 setupscreen();
 exitcode=1;
 while(exitcode)
 {
    if(kbhit())
    {
       ch=getch();
       if(ch==27) break;
       if(ch==75) a--;
       if(ch==77) a++;
       check_keys(x,y);
       switch(ch)
       {
        case'a':case'A':key=0;break;
        case's':case'S':key=1;break;
        case'd':case'D':key=2;break;
        case'f':case'F':key=3;break;
        case'j':case'J':key=4;break;
        case'k':case'K':key=5;break;
        case'l':case'L':key=6;break;
       }
       sound(freq[key]*a);
       delay(80);
       nosound();
    }
    getmouse(&b,&x,&y);
    //gotoxy(2,2);cprintf("%d,%d ",x,y);if(b==1)
    {
        while(b==1)
        {
            getmouse(&b,&x,&y);
            key=check_xy(x,y);
            if(key!=-1 && key<7)
            {
                sound(freq[key]*a);
            }
            elseif(key>6)
                 {
                 sound(freq[12-key]*(a/2));
                 }
        }
        nosound();
        check_keys(x,y);
    }
 }//while(1)
 textbackground(0);
 clrscr();
 _setcursortype(_NORMALCURSOR);
}
void setupscreen()
{
 _setcursortype(_NOCURSOR);
 textbackground(backcolor);
 clrscr();
 drawpiano(9,17);
 BOX(4,5,8,5,0);
 BOX(5,5,7,5,1);
 textcolor(15);
 gotoxy(70,5);
 cprintf(">Quit<");
 gotoxy(4,4);
 cprintf("Range");
 textbackground(0);
 gotoxy(8,5);
 cprintf("");
 gotoxy(4,5);
 cprintf("");
 gotoxy(6,5);
 cprintf("%d",a);
 textcolor(14);
 textbackground(backcolor+7);
 gotoxy(30,4);
 cprintf("VIRTUAL PIANO v1.0");

}
void pianokey(int x,int y)
{
 textbackground(color.MIDKEY);
 textcolor(color.BIGKEY);
 gotoxy(x,y);
 cprintf("ÛÛÛ  ÛÛÛ");
 gotoxy(x,y+1);
 cprintf("ÛÛÛ  ÛÛÛ");
 gotoxy(x,y+2);
 cprintf("ÛÛÛ  ÛÛÛ");
 gotoxy(x,y+3);
 cprintf("ÛÛÛÛÞÛÛÛ");
 gotoxy(x,y+4);
 cprintf("ÛÛÛÛÞÛÛÛ");
 gotoxy(x,y+5);
 cprintf("ÛÛÛÛÞÛÛÛ");
 gotoxy(x,y+6);
 cprintf("ÛÛÛÛÞÛÛÛ");
 gotoxy(x,y);
}
void drawpiano(int x,int y)
{
 int t=9;
 BOX(x-5,y-3,75,y+8,color.border);
 BOX(x-4,y-2,74,y+7,color.back);
 pianokey(x,y);
 pianokey(x+t,y);
 pianokey(x+t*2,y);
 pianokey(x+t*3,y);
 pianokey(x+t*4,y);
 pianokey(x+t*5,y);
 pianokey(x+t*6,y);
}
void BOX(int c,int r,int c1,int r1,int col)
{
 int i,j;
 textcolor(col);
 for(i=r;i<=r1;i++)
 {
    for(j=c;j<=c1;j++)
    {
        gotoxy(j,i);
        cprintf("Û");
    }
 }
}
int initmouse()
{
 input.x.ax=0;
 int86(0x33,&input,&output);
 return(output.x.ax==0 ? -1 : 0);
}
void pointer(int on)
{
   input.x.ax=on;
   int86(0x33,&input,&output);
}
void restrictmouse(int x1,int y1,int x2,int y2)
{
   input.x.ax=7;
   input.x.cx=x1/8;
   input.x.dx=x2/8;
   int86(0x33,&input,&output);
   input.x.ax=8;
   input.x.cx=y1/8;
   input.x.dx=y2/8;
   int86(0x33,&input,&output);
}
void getmouse(int *button,int *x,int *y)
{
  input.x.ax=3;
  int86(0x33,&input,&output);
  *button=output.x.bx;
  *x=output.x.cx/8;
  *y=output.x.dx/8;
}
int check_xy(int x,int y)
{
  //mid keysif(x>=11 && y>=16 && x<=12 && y<=18)
  return 7;
  if(x>=20 && y>=16 && x<=21 && y<=18)
  return 8;
  if(x>=29 && y>=16 && x<=30 && y<=18)
  return 9;
  if(x>=38 && y>=16 && x<=39 && y<=18)
  return 10;
  if(x>=47 && y>=16 && x<=48 && y<=18)
  return 11;
  if(x>=56 && y>=16 && x<=57 && y<=18)
  return 0;
  if(x>=65 && y>=16 && x<=66 && y<=18)
  return 12;

  // big keysif(x>=8 && y>=16 && x<=15 && y<=22)
  return 0;
  if(x>=17 && y>=16 && x<=24 && y<=22)
  return 1;
  if(x>=26 && y>=16 && x<=33 && y<=22)
  return 2;
  if(x>=35 && y>=16 && x<=42 && y<=22)
  return 3;
  if(x>=44 && y>=16 && x<=51 && y<=22)
  return 4;
  if(x>=53 && y>=16 && x<=60 && y<=22)
  return 5;
  if(x>=62 && y>=16 && x<=69 && y<=22)
  return 6;
  return (-1);//no key pressed
}
void check_keys(int x,int y)
{
  if(x==7 && y==4)  a++;
  if(x==3 && y==4)  a--;
  if(a<1) a=1;elseif(a>30) a=30;
  textcolor(15);textbackground(1);
  gotoxy(5,5);cprintf("   ");
  if(a<10) gotoxy(6,5);
  else gotoxy(5,5);
  cprintf("%d",a);
  if(x>=69 && y>=4 && x<=74 && y<=4) exitcode=0;
}
  
Share: 


Didn't find what you were looking for? Find more on Program of virtual piano Or get search suggestion and latest updates.

Easy Tutor
Easy Tutor author of Program of virtual piano is from United States. Easy Tutor says

Hello Friends,

I am Free Lance Tutor, who helped student in completing their homework.

I have 4 Years of hands on experience on helping student in completing their homework. I also guide them in doing their final year projects.

I have share many programs on this website for everyone to use freely, if you need further assistance, than please contact me on easytutor.2ya [at the rate] gmail [dot] com

I have special discount scheme for providing tutor services. I am providing tutor service to students from various contries, currently most of my students are from United States, India, Australia, Pakistan, Germany, UK and Canada.

I am also here to expand my technical network to receive more opportunity in my career, make friends to help them in resolving their technical problem, learn and share my knowledge, If you like to be my friend, Please send me friend request.

Thanks,
Happy Programming :)

 
View All Articles

 
Please enter your Comment

  • Comment should be atleast 30 Characters.
  • Please put code inside [Code] your code [/Code].

 
No Comment Found, Be the First to post comment!