I'm writing a programm that's using `getch()` to scan for arrow keys. My code so far is:

```
switch(getch()) {
    case 65:    // key up
        break;
    case 66:    // key down
        break;
    case 67:    // key right
        break;
    case 68:    // key left
        break;
}

```

Problem is that when I press `'A'`, `'B'`, `'C'` or `'D'` the code will also executed, because `65` is the decimal code for `'A'`, etc...

Is there a way to check for an arrow key without call others?

Thanks!