sf::Keyboard::Key RelativeKey(sf::Keyboard::Key key) {
    UINT sc;

    // http://www.georgehernandez.com/h/xComputers/CharacterSets/Media/USKeyboard_ScanCodes.gif
    switch(key) {
    case sf::Keyboard::Q: sc = 0x10; break;
    case sf::Keyboard::W: sc = 0x11; break;
    case sf::Keyboard::E: sc = 0x12; break;
    case sf::Keyboard::A: sc = 0x1e; break;
    case sf::Keyboard::S: sc = 0x1f; break;
    case sf::Keyboard::D: sc = 0x20; break;
    default: return key;
    }

    auto vk = MapVirtualKey(sc, MAPVK_VSC_TO_VK);

    if(vk >= 'A' && vk <= 'Z')
        return (sf::Keyboard::Key)(vk - 'A' + sf::Keyboard::A) ;

    if(vk >= '0' && vk <= '9')
        return (sf::Keyboard::Key)(vk - '0' + sf::Keyboard::Num0);

    // http://msdn.microsoft.com/en-gb/library/windows/desktop/dd375731(v=vs.85).aspx
    switch(vk) {
    case VK_OEM_COMMA:  return sf::Keyboard::Comma;
    case VK_OEM_7:          return sf::Keyboard::Quote;
    case VK_OEM_PERIOD: return sf::Keyboard::Period;
    default:
        cerr << "Unhandled vkey: " << vk << "\n";
        return key;
    }
}