/// <summary>  
 /// Enumeration for virtual keys taken from http://www.pinvoke.net/default.aspx/Enums/VirtualKeys.html  
 /// </summary>  
 public enum VirtualKeys : ushort  
 {  
     /// <summary></summary>  
     LeftButton = 0x01,  
     /// <summary></summary>  
     RightButton = 0x02,  
     /// <summary></summary>  
     Cancel = 0x03,  
     /// <summary></summary>  
     MiddleButton = 0x04,  
     /// <summary></summary>  
     ExtraButton1 = 0x05,  
     /// <summary></summary>  
     ExtraButton2 = 0x06,  
     /// <summary></summary>  
     Back = 0x08,  
     /// <summary></summary>  
     Tab = 0x09,  
     /// <summary></summary>  
     Clear = 0x0C,  
     /// <summary></summary>  
     Return = 0x0D,  
     /// <summary></summary>  
     Shift = 0x10,  
     /// <summary></summary>  
     Control = 0x11,  
     /// <summary></summary>  
     Menu = 0x12,  
     /// <summary></summary>  
     Pause = 0x13,  
     /// <summary></summary>  
     CapsLock = 0x14,  
     /// <summary></summary>  
     Kana = 0x15,  
     /// <summary></summary>  
     Hangeul = 0x15,  
     /// <summary></summary>  
     Hangul = 0x15,  
     /// <summary></summary>  
     Junja = 0x17,  
     /// <summary></summary>  
     Final = 0x18,  
     /// <summary></summary>  
     Hanja = 0x19,  
     /// <summary></summary>  
     Kanji = 0x19,  
     /// <summary></summary>  
     Escape = 0x1B,  
     /// <summary></summary>  
     Convert = 0x1C,  
     /// <summary></summary>  
     NonConvert = 0x1D,  
     /// <summary></summary>  
     Accept = 0x1E,  
     /// <summary></summary>  
     ModeChange = 0x1F,  
     /// <summary></summary>  
     Space = 0x20,  
     /// <summary></summary>  
     Prior = 0x21,  
     /// <summary></summary>  
     Next = 0x22,  
     /// <summary></summary>  
     End = 0x23,  
     /// <summary></summary>  
     Home = 0x24,  
     /// <summary></summary>  
     Left = 0x25,  
     /// <summary></summary>  
     Up = 0x26,  
     /// <summary></summary>  
     Right = 0x27,  
     /// <summary></summary>  
     Down = 0x28,  
     /// <summary></summary>  
     Select = 0x29,  
     /// <summary></summary>  
     Print = 0x2A,  
     /// <summary></summary>  
     Execute = 0x2B,  
     /// <summary></summary>  
     Snapshot = 0x2C,  
     /// <summary></summary>  
     Insert = 0x2D,  
     /// <summary></summary>  
     Delete = 0x2E,  
     /// <summary></summary>  
     Help = 0x2F,  
     /// <summary></summary>  
     N0 = 0x30,  
     /// <summary></summary>  
     N1 = 0x31,  
     /// <summary></summary>  
     N2 = 0x32,  
     /// <summary></summary>  
     N3 = 0x33,  
     /// <summary></summary>  
     N4 = 0x34,  
     /// <summary></summary>  
     N5 = 0x35,  
     /// <summary></summary>  
     N6 = 0x36,  
     /// <summary></summary>  
     N7 = 0x37,  
     /// <summary></summary>  
     N8 = 0x38,  
     /// <summary></summary>  
     N9 = 0x39,  
     /// <summary></summary>  
     A = 0x41,  
     /// <summary></summary>  
     B = 0x42,  
     /// <summary></summary>  
     C = 0x43,  
     /// <summary></summary>  
     D = 0x44,  
     /// <summary></summary>  
     E = 0x45,  
     /// <summary></summary>  
     F = 0x46,  
     /// <summary></summary>  
     G = 0x47,  
     /// <summary></summary>  
     H = 0x48,  
     /// <summary></summary>  
     I = 0x49,  
     /// <summary></summary>  
     J = 0x4A,  
     /// <summary></summary>  
     K = 0x4B,  
     /// <summary></summary>  
     L = 0x4C,  
     /// <summary></summary>  
     M = 0x4D,  
     /// <summary></summary>  
     N = 0x4E,  
     /// <summary></summary>  
     O = 0x4F,  
     /// <summary></summary>  
     P = 0x50,  
     /// <summary></summary>  
     Q = 0x51,  
     /// <summary></summary>  
     R = 0x52,  
     /// <summary></summary>  
     S = 0x53,  
     /// <summary></summary>  
     T = 0x54,  
     /// <summary></summary>  
     U = 0x55,  
     /// <summary></summary>  
     V = 0x56,  
     /// <summary></summary>  
     W = 0x57,  
     /// <summary></summary>  
     X = 0x58,  
     /// <summary></summary>  
     Y = 0x59,  
     /// <summary></summary>  
     Z = 0x5A,  
     /// <summary></summary>  
     LeftWindows = 0x5B,  
     /// <summary></summary>  
     RightWindows = 0x5C,  
     /// <summary></summary>  
     Application = 0x5D,  
     /// <summary></summary>  
     Sleep = 0x5F,  
     /// <summary></summary>  
     Numpad0 = 0x60,  
     /// <summary></summary>  
     Numpad1 = 0x61,  
     /// <summary></summary>  
     Numpad2 = 0x62,  
     /// <summary></summary>  
     Numpad3 = 0x63,  
     /// <summary></summary>  
     Numpad4 = 0x64,  
     /// <summary></summary>  
     Numpad5 = 0x65,  
     /// <summary></summary>  
     Numpad6 = 0x66,  
     /// <summary></summary>  
     Numpad7 = 0x67,  
     /// <summary></summary>  
     Numpad8 = 0x68,  
     /// <summary></summary>  
     Numpad9 = 0x69,  
     /// <summary></summary>  
     Multiply = 0x6A,  
     /// <summary></summary>  
     Add = 0x6B,  
     /// <summary></summary>  
     Separator = 0x6C,  
     /// <summary></summary>  
     Subtract = 0x6D,  
     /// <summary></summary>  
     Decimal = 0x6E,  
     /// <summary></summary>  
     Divide = 0x6F,  
     /// <summary></summary>  
     F1 = 0x70,  
     /// <summary></summary>  
     F2 = 0x71,  
     /// <summary></summary>  
     F3 = 0x72,  
     /// <summary></summary>  
     F4 = 0x73,  
     /// <summary></summary>  
     F5 = 0x74,  
     /// <summary></summary>  
     F6 = 0x75,  
     /// <summary></summary>  
     F7 = 0x76,  
     /// <summary></summary>  
     F8 = 0x77,  
     /// <summary></summary>  
     F9 = 0x78,  
     /// <summary></summary>  
     F10 = 0x79,  
     /// <summary></summary>  
     F11 = 0x7A,  
     /// <summary></summary>  
     F12 = 0x7B,  
     /// <summary></summary>  
     F13 = 0x7C,  
     /// <summary></summary>  
     F14 = 0x7D,  
     /// <summary></summary>  
     F15 = 0x7E,  
     /// <summary></summary>  
     F16 = 0x7F,  
     /// <summary></summary>  
     F17 = 0x80,  
     /// <summary></summary>  
     F18 = 0x81,  
     /// <summary></summary>  
     F19 = 0x82,  
     /// <summary></summary>  
     F20 = 0x83,  
     /// <summary></summary>  
     F21 = 0x84,  
     /// <summary></summary>  
     F22 = 0x85,  
     /// <summary></summary>  
     F23 = 0x86,  
     /// <summary></summary>  
     F24 = 0x87,  
     /// <summary></summary>  
     NumLock = 0x90,  
     /// <summary></summary>  
     ScrollLock = 0x91,  
     /// <summary></summary>  
     NEC\_Equal = 0x92,  
     /// <summary></summary>  
     Fujitsu\_Jisho = 0x92,  
     /// <summary></summary>  
     Fujitsu\_Masshou = 0x93,  
     /// <summary></summary>  
     Fujitsu\_Touroku = 0x94,  
     /// <summary></summary>  
     Fujitsu\_Loya = 0x95,  
     /// <summary></summary>  
     Fujitsu\_Roya = 0x96,  
     /// <summary></summary>  
     LeftShift = 0xA0,  
     /// <summary></summary>  
     RightShift = 0xA1,  
     /// <summary></summary>  
     LeftControl = 0xA2,  
     /// <summary></summary>  
     RightControl = 0xA3,  
     /// <summary></summary>  
     LeftMenu = 0xA4,  
     /// <summary></summary>  
     RightMenu = 0xA5,  
     /// <summary></summary>  
     BrowserBack = 0xA6,  
     /// <summary></summary>  
     BrowserForward = 0xA7,  
     /// <summary></summary>  
     BrowserRefresh = 0xA8,  
     /// <summary></summary>  
     BrowserStop = 0xA9,  
     /// <summary></summary>  
     BrowserSearch = 0xAA,  
     /// <summary></summary>  
     BrowserFavorites = 0xAB,  
     /// <summary></summary>  
     BrowserHome = 0xAC,  
     /// <summary></summary>  
     VolumeMute = 0xAD,  
     /// <summary></summary>  
     VolumeDown = 0xAE,  
     /// <summary></summary>  
     VolumeUp = 0xAF,  
     /// <summary></summary>  
     MediaNextTrack = 0xB0,  
     /// <summary></summary>  
     MediaPrevTrack = 0xB1,  
     /// <summary></summary>  
     MediaStop = 0xB2,  
     /// <summary></summary>  
     MediaPlayPause = 0xB3,  
     /// <summary></summary>  
     LaunchMail = 0xB4,  
     /// <summary></summary>  
     LaunchMediaSelect = 0xB5,  
     /// <summary></summary>  
     LaunchApplication1 = 0xB6,  
     /// <summary></summary>  
     LaunchApplication2 = 0xB7,  
     /// <summary></summary>  
     OEM1 = 0xBA,  
     /// <summary></summary>  
     OEMPlus = 0xBB,  
     /// <summary></summary>  
     OEMComma = 0xBC,  
     /// <summary></summary>  
     OEMMinus = 0xBD,  
     /// <summary></summary>  
     OEMPeriod = 0xBE,  
     /// <summary></summary>  
     OEM2 = 0xBF,  
     /// <summary></summary>  
     OEM3 = 0xC0,  
     /// <summary></summary>  
     OEM4 = 0xDB,  
     /// <summary></summary>  
     OEM5 = 0xDC,  
     /// <summary></summary>  
     OEM6 = 0xDD,  
     /// <summary></summary>  
     OEM7 = 0xDE,  
     /// <summary></summary>  
     OEM8 = 0xDF,  
     /// <summary></summary>  
     OEMAX = 0xE1,  
     /// <summary></summary>  
     OEM102 = 0xE2,  
     /// <summary></summary>  
     ICOHelp = 0xE3,  
     /// <summary></summary>  
     ICO00 = 0xE4,  
     /// <summary></summary>  
     ProcessKey = 0xE5,  
     /// <summary></summary>  
     ICOClear = 0xE6,  
     /// <summary></summary>  
     Packet = 0xE7,  
     /// <summary></summary>  
     OEMReset = 0xE9,  
     /// <summary></summary>  
     OEMJump = 0xEA,  
     /// <summary></summary>  
     OEMPA1 = 0xEB,  
     /// <summary></summary>  
     OEMPA2 = 0xEC,  
     /// <summary></summary>  
     OEMPA3 = 0xED,  
     /// <summary></summary>  
     OEMWSCtrl = 0xEE,  
     /// <summary></summary>  
     OEMCUSel = 0xEF,  
     /// <summary></summary>  
     OEMATTN = 0xF0,  
     /// <summary></summary>  
     OEMFinish = 0xF1,  
     /// <summary></summary>  
     OEMCopy = 0xF2,  
     /// <summary></summary>  
     OEMAuto = 0xF3,  
     /// <summary></summary>  
     OEMENLW = 0xF4,  
     /// <summary></summary>  
     OEMBackTab = 0xF5,  
     /// <summary></summary>  
     ATTN = 0xF6,  
     /// <summary></summary>  
     CRSel = 0xF7,  
     /// <summary></summary>  
     EXSel = 0xF8,  
     /// <summary></summary>  
     EREOF = 0xF9,  
     /// <summary></summary>  
     Play = 0xFA,  
     /// <summary></summary>  
     Zoom = 0xFB,  
     /// <summary></summary>  
     Noname = 0xFC,  
     /// <summary></summary>  
     PA1 = 0xFD,  
     /// <summary></summary>  
     OEMClear = 0xFE  
 }