enum Key
    {
        /*
        * Virtual Keys, Standard Set
        */
        #define VK_LBUTTON        0x01
        #define VK_RBUTTON        0x02
        #define VK_CANCEL         0x03
        #define VK_MBUTTON        0x04    /* NOT contiguous with L & RBUTTON */

        #define VK_XBUTTON1       0x05    /* NOT contiguous with L & RBUTTON */
        #define VK_XBUTTON2       0x06    /* NOT contiguous with L & RBUTTON */

        /*
        * 0x07 : reserved
        */


        #define VK_BACK           0x08
        #define VK_TAB            0x09

        /*
        * 0x0A - 0x0B : reserved
        */

        #define VK_CLEAR          0x0C
        #define VK_RETURN         0x0D

        /*
        * 0x0E - 0x0F : unassigned
        */

        #define VK_SHIFT          0x10
        #define VK_CONTROL        0x11
        #define VK_MENU           0x12
        #define VK_PAUSE          0x13
        #define VK_CAPITAL        0x14

        #define VK_KANA           0x15
        #define VK_HANGEUL        0x15  /* old name - should be here for compatibility */
        #define VK_HANGUL         0x15

        /*
        * 0x16 : unassigned
        */

        #define VK_JUNJA          0x17
        #define VK_FINAL          0x18
        #define VK_HANJA          0x19
        #define VK_KANJI          0x19

        /*
        * 0x1A : unassigned
        */

        #define VK_ESCAPE         0x1B

        #define VK_CONVERT        0x1C
        #define VK_NONCONVERT     0x1D
        #define VK_ACCEPT         0x1E
        #define VK_MODECHANGE     0x1F

        #define VK_SPACE          0x20
        #define VK_PRIOR          0x21
        #define VK_NEXT           0x22
        #define VK_END            0x23
        #define VK_HOME           0x24
        #define VK_LEFT           0x25
        #define VK_UP             0x26
        #define VK_RIGHT          0x27
        #define VK_DOWN           0x28
        #define VK_SELECT         0x29
        #define VK_PRINT          0x2A
        #define VK_EXECUTE        0x2B
        #define VK_SNAPSHOT       0x2C
        #define VK_INSERT         0x2D
        #define VK_DELETE         0x2E
        #define VK_HELP           0x2F

        /*
        * VK_0 - VK_9 are the same as ASCII '0' - '9' (0x30 - 0x39)
        * 0x3A - 0x40 : unassigned
        * VK_A - VK_Z are the same as ASCII 'A' - 'Z' (0x41 - 0x5A)
        */

        #define VK_LWIN           0x5B
        #define VK_RWIN           0x5C
        #define VK_APPS           0x5D

        /*
        * 0x5E : reserved
        */

        #define VK_SLEEP          0x5F

        #define VK_NUMPAD0        0x60
        #define VK_NUMPAD1        0x61
        #define VK_NUMPAD2        0x62
        #define VK_NUMPAD3        0x63
        #define VK_NUMPAD4        0x64
        #define VK_NUMPAD5        0x65
        #define VK_NUMPAD6        0x66
        #define VK_NUMPAD7        0x67
        #define VK_NUMPAD8        0x68
        #define VK_NUMPAD9        0x69
        #define VK_MULTIPLY       0x6A
        #define VK_ADD            0x6B
        #define VK_SEPARATOR      0x6C
        #define VK_SUBTRACT       0x6D
        #define VK_DECIMAL        0x6E
        #define VK_DIVIDE         0x6F
        #define VK_F1             0x70
        #define VK_F2             0x71
        #define VK_F3             0x72
        #define VK_F4             0x73
        #define VK_F5             0x74
        #define VK_F6             0x75
        #define VK_F7             0x76
        #define VK_F8             0x77
        #define VK_F9             0x78
        #define VK_F10            0x79
        #define VK_F11            0x7A
        #define VK_F12            0x7B
        #define VK_F13            0x7C
        #define VK_F14            0x7D
        #define VK_F15            0x7E
        #define VK_F16            0x7F
        #define VK_F17            0x80
        #define VK_F18            0x81
        #define VK_F19            0x82
        #define VK_F20            0x83
        #define VK_F21            0x84
        #define VK_F22            0x85
        #define VK_F23            0x86
        #define VK_F24            0x87

        /*
        * 0x88 - 0x8F : UI navigation
        */

        #define VK_NAVIGATION_VIEW     0x88 // reserved
        #define VK_NAVIGATION_MENU     0x89 // reserved
        #define VK_NAVIGATION_UP       0x8A // reserved
        #define VK_NAVIGATION_DOWN     0x8B // reserved
        #define VK_NAVIGATION_LEFT     0x8C // reserved
        #define VK_NAVIGATION_RIGHT    0x8D // reserved
        #define VK_NAVIGATION_ACCEPT   0x8E // reserved
        #define VK_NAVIGATION_CANCEL   0x8F // reserved

        #define VK_NUMLOCK        0x90
        #define VK_SCROLL         0x91

        /*
        * NEC PC-9800 kbd definitions
        */
        #define VK_OEM_NEC_EQUAL  0x92   // '=' key on numpad

        /*
        * Fujitsu/OASYS kbd definitions
        */
        #define VK_OEM_FJ_JISHO   0x92   // 'Dictionary' key
        #define VK_OEM_FJ_MASSHOU 0x93   // 'Unregister word' key
        #define VK_OEM_FJ_TOUROKU 0x94   // 'Register word' key
        #define VK_OEM_FJ_LOYA    0x95   // 'Left OYAYUBI' key
        #define VK_OEM_FJ_ROYA    0x96   // 'Right OYAYUBI' key

        /*
        * 0x97 - 0x9F : unassigned
        */

        /*
        * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
        * Used only as parameters to GetAsyncKeyState() and GetKeyState().
        * No other API or message will distinguish left and right keys in this way.
        */
        #define VK_LSHIFT         0xA0
        #define VK_RSHIFT         0xA1
        #define VK_LCONTROL       0xA2
        #define VK_RCONTROL       0xA3
        #define VK_LMENU          0xA4
        #define VK_RMENU          0xA5

        #define VK_BROWSER_BACK        0xA6
        #define VK_BROWSER_FORWARD     0xA7
        #define VK_BROWSER_REFRESH     0xA8
        #define VK_BROWSER_STOP        0xA9
        #define VK_BROWSER_SEARCH      0xAA
        #define VK_BROWSER_FAVORITES   0xAB
        #define VK_BROWSER_HOME        0xAC

        #define VK_VOLUME_MUTE         0xAD
        #define VK_VOLUME_DOWN         0xAE
        #define VK_VOLUME_UP           0xAF
        #define VK_MEDIA_NEXT_TRACK    0xB0
        #define VK_MEDIA_PREV_TRACK    0xB1
        #define VK_MEDIA_STOP          0xB2
        #define VK_MEDIA_PLAY_PAUSE    0xB3
        #define VK_LAUNCH_MAIL         0xB4
        #define VK_LAUNCH_MEDIA_SELECT 0xB5
        #define VK_LAUNCH_APP1         0xB6
        #define VK_LAUNCH_APP2         0xB7

        /*
        * 0xB8 - 0xB9 : reserved
        */

        #define VK_OEM_1          0xBA   // ';:' for US
        #define VK_OEM_PLUS       0xBB   // '+' any country
        #define VK_OEM_COMMA      0xBC   // ',' any country
        #define VK_OEM_MINUS      0xBD   // '-' any country
        #define VK_OEM_PERIOD     0xBE   // '.' any country
        #define VK_OEM_2          0xBF   // '/?' for US
        #define VK_OEM_3          0xC0   // '`~' for US

        /*
        * 0xC1 - 0xC2 : reserved
        */

        /*
        * 0xC3 - 0xDA : Gamepad input
        */

        #define VK_GAMEPAD_A                         0xC3 // reserved
        #define VK_GAMEPAD_B                         0xC4 // reserved
        #define VK_GAMEPAD_X                         0xC5 // reserved
        #define VK_GAMEPAD_Y                         0xC6 // reserved
        #define VK_GAMEPAD_RIGHT_SHOULDER            0xC7 // reserved
        #define VK_GAMEPAD_LEFT_SHOULDER             0xC8 // reserved
        #define VK_GAMEPAD_LEFT_TRIGGER              0xC9 // reserved
        #define VK_GAMEPAD_RIGHT_TRIGGER             0xCA // reserved
        #define VK_GAMEPAD_DPAD_UP                   0xCB // reserved
        #define VK_GAMEPAD_DPAD_DOWN                 0xCC // reserved
        #define VK_GAMEPAD_DPAD_LEFT                 0xCD // reserved
        #define VK_GAMEPAD_DPAD_RIGHT                0xCE // reserved
        #define VK_GAMEPAD_MENU                      0xCF // reserved
        #define VK_GAMEPAD_VIEW                      0xD0 // reserved
        #define VK_GAMEPAD_LEFT_THUMBSTICK_BUTTON    0xD1 // reserved
        #define VK_GAMEPAD_RIGHT_THUMBSTICK_BUTTON   0xD2 // reserved
        #define VK_GAMEPAD_LEFT_THUMBSTICK_UP        0xD3 // reserved
        #define VK_GAMEPAD_LEFT_THUMBSTICK_DOWN      0xD4 // reserved
        #define VK_GAMEPAD_LEFT_THUMBSTICK_RIGHT     0xD5 // reserved
        #define VK_GAMEPAD_LEFT_THUMBSTICK_LEFT      0xD6 // reserved
        #define VK_GAMEPAD_RIGHT_THUMBSTICK_UP       0xD7 // reserved
        #define VK_GAMEPAD_RIGHT_THUMBSTICK_DOWN     0xD8 // reserved
        #define VK_GAMEPAD_RIGHT_THUMBSTICK_RIGHT    0xD9 // reserved
        #define VK_GAMEPAD_RIGHT_THUMBSTICK_LEFT     0xDA // reserved


        #define VK_OEM_4          0xDB  //  '[{' for US
        #define VK_OEM_5          0xDC  //  '\|' for US
        #define VK_OEM_6          0xDD  //  ']}' for US
        #define VK_OEM_7          0xDE  //  ''"' for US
        #define VK_OEM_8          0xDF

        /*
        * 0xE0 : reserved
        */

        /*
        * Various extended or enhanced keyboards
        */
        #define VK_OEM_AX         0xE1  //  'AX' key on Japanese AX kbd
        #define VK_OEM_102        0xE2  //  "<>" or "\|" on RT 102-key kbd.
        #define VK_ICO_HELP       0xE3  //  Help key on ICO
        #define VK_ICO_00         0xE4  //  00 key on ICO

        #define VK_PROCESSKEY     0xE5

        #define VK_ICO_CLEAR      0xE6


        #define VK_PACKET         0xE7

        /*
        * 0xE8 : unassigned
        */

        /*
        * Nokia/Ericsson definitions
        */
        #define VK_OEM_RESET      0xE9
        #define VK_OEM_JUMP       0xEA
        #define VK_OEM_PA1        0xEB
        #define VK_OEM_PA2        0xEC
        #define VK_OEM_PA3        0xED
        #define VK_OEM_WSCTRL     0xEE
        #define VK_OEM_CUSEL      0xEF
        #define VK_OEM_ATTN       0xF0
        #define VK_OEM_FINISH     0xF1
        #define VK_OEM_COPY       0xF2
        #define VK_OEM_AUTO       0xF3
        #define VK_OEM_ENLW       0xF4
        #define VK_OEM_BACKTAB    0xF5

        #define VK_ATTN           0xF6
        #define VK_CRSEL          0xF7
        #define VK_EXSEL          0xF8
        #define VK_EREOF          0xF9
        #define VK_PLAY           0xFA
        #define VK_ZOOM           0xFB
        #define VK_NONAME         0xFC
        #define VK_PA1            0xFD
        #define VK_OEM_CLEAR      0xFE
    };