Win Key tracker

#include <windows.h>

#include <iostream>

using namespace std;


const short unsigned int Keyleft  = 37;
const short unsigned int Keytop   = 38;
const short unsigned int Keyright = 39;
const short unsigned int Keydown  = 40;
const short unsigned int Keyexit  = 81;

int getKey();

int main ()
{

    int i;
    cout << "Type a key \n" << endl;

    while (true)
    {
        i = getKey();


        switch( i )
        {

        case Keyleft:
            {
                cout << "you pressed : left" <<endl;
            }
            break;
        case Keytop:
            {
                cout << "you pressed : up" <<endl;
            }
            break;
        case Keyright:
            {
                cout << "you pressed : right" <<endl;
            }
            break;
        case Keydown:
            {
                cout << "you pressed : down" <<endl;
            }
            break;
        case Keyexit:
            {
                cout << "exit key" <<endl;
            }
            break;
        default:
            {
                cout << "you pressed : " << i <<endl;
        };
    }

    system ("pause");
    return 0;
}

int getKey()
{
    while (true)
    {
        for(int i = 8; i <= 256; i++)
        {
            if(GetAsyncKeyState(i) & 0x7FFF)
            {

                // This if filters the keys, i want to allow direction arrows
                // and q for quit. If you want to add more just add the code for the key,
                // to know the key code just coment the if line and print the keycode.
                if( ( i >= 37 && i <= 40 ) || i == 81 )
                return i;
            }
        }
    }
}