char* KeyName(unsigned int key)
{
    switch(key)
    {
    // Numbers
        case KEY_CHAR_0:
            return "[0]\0";
        case KEY_CHAR_1:
            return "[1]\0";
        case KEY_CHAR_2:
            return "[2]\0";
        case KEY_CHAR_3:
            return "[3]\0";
        case KEY_CHAR_4:
            return "[4]\0";
        case KEY_CHAR_5:
            return "[5]\0";
        case KEY_CHAR_6:
            return "[6]\0";
        case KEY_CHAR_7:
            return "[7]\0";
        case KEY_CHAR_8:
            return "[8]\0";
        case KEY_CHAR_9:
            return "[9]\0";
            
    // Letters
        case KEY_CHAR_A:
            return "[A]\0";
        case KEY_CHAR_B:
            return "[B]\0";
        case KEY_CHAR_C:
            return "[C]\0";
        case KEY_CHAR_D:
            return "[D]\0";
        case KEY_CHAR_E:
            return "[E]\0";
        case KEY_CHAR_F:
            return "[F]\0";
        case KEY_CHAR_G:
            return "[G]\0";
        case KEY_CHAR_H:
            return "[H]\0";
        case KEY_CHAR_I:
            return "[I]\0";
        case KEY_CHAR_J:
            return "[J]\0";
        case KEY_CHAR_K:
            return "[K]\0";
        case KEY_CHAR_L:
            return "[L]\0";
        case KEY_CHAR_M:
            return "[M]\0";
        case KEY_CHAR_N:
            return "[N]\0";
        case KEY_CHAR_O:
            return "[O]\0";
        case KEY_CHAR_P:
            return "[P]\0";
        case KEY_CHAR_Q:
            return "[Q]\0";
        case KEY_CHAR_R:
            return "[R]\0";
        case KEY_CHAR_S:
            return "[S]\0";
        case KEY_CHAR_T:
            return "[T]\0";
        case KEY_CHAR_U:
            return "[U]\0";
        case KEY_CHAR_V:
            return "[V]\0";
        case KEY_CHAR_W:
            return "[W]\0";
        case KEY_CHAR_X:
            return "[X]\0";
        case KEY_CHAR_Y:
            return "[Y]\0";
        case KEY_CHAR_Z:
            return "[Z]\0";
    
    // Others
        case KEY_CHAR_DP:
            return "[.]\0";
        case KEY_CHAR_EXP:
            return "[E^]\0";
        case KEY_CHAR_PMINUS:
            return "[(-)]\0";
        case KEY_CHAR_PLUS:
            return "[+]\0";
        case KEY_CHAR_MINUS:
            return "[-]\0";
        case KEY_CHAR_MULT:
            return "[x]\0";
        case KEY_CHAR_DIV:
            return "[/]\0";
        case KEY_CHAR_FRAC:
            return "[FRAC]\0";
        case KEY_CHAR_LPAR:
            return "[(]\0";
        case KEY_CHAR_RPAR:
            return "[)]\0";
        case KEY_CHAR_COMMA:
            return "[,]\0";
        case KEY_CHAR_STORE:
            return "[->]\0";
        case KEY_CHAR_LOG:
            return "[log]\0";
        case KEY_CHAR_LN:
            return "[ln]\0";
        case KEY_CHAR_SIN:
            return "[sin]\0";
        case KEY_CHAR_COS:
            return "[cos]\0";
        case KEY_CHAR_TAN:
            return "[tan]\0";
        case KEY_CHAR_SQUARE:
            return "[x^2]\0";
        case KEY_CHAR_POW:
            return "[^]\0";
            
        case KEY_CHAR_IMGNRY:
            return "i";
        case KEY_CHAR_LIST:
            return "[List]";
        case KEY_CHAR_MAT:
            return "[Mat]";
        case KEY_CHAR_EQUAL:
            return "[=]";
        case KEY_CHAR_PI:
            return "[Pi]";
        case KEY_CHAR_ANS:
            return "[Ans]";
        case KEY_CHAR_LBRCKT:
            return "[[]";
        case KEY_CHAR_RBRCKT:
            return "[]]";
        case KEY_CHAR_LBRACE:
            return "[{]";
        case KEY_CHAR_RBRACE:
            return "[}]";
        case KEY_CHAR_CR:
            return "[CR]";
        case KEY_CHAR_CUBEROOT:
            return "[CBRT]";
        case KEY_CHAR_RECIP:
            return "[x^-1]";
        case KEY_CHAR_ANGLE:
            return "[Angle]";
        case KEY_CHAR_EXPN10:
            return "[10^x]";
        case KEY_CHAR_EXPN:
            return "[e^]";
        case KEY_CHAR_ASIN:
            return "[asin]";
        case KEY_CHAR_ACOS:
            return "[acos]";
        case KEY_CHAR_ATAN:
            return "[atan]";
        case KEY_CHAR_ROOT:
            return "[SQRT]";
        case KEY_CHAR_POWROOT:
            return "[Root^x]";
        case KEY_CHAR_SPACE:
            return "[SPACE]";
        case KEY_CHAR_DQUATE:
            return "[\"]";
        case KEY_CHAR_VALR:
            return "[r]";
        case KEY_CHAR_THETA:
            return "[theta]";

    // Control codes
        case KEY_CTRL_NOP:
            return "[NOP]";
        case KEY_CTRL_EXE:
            return "[EXE]";
        case KEY_CTRL_DEL:
            return "[Del]";
        case KEY_CTRL_AC:
            return "[Ac/On]";
        case KEY_CTRL_FD:
            return "[F-D]";
        case KEY_CTRL_XTT:
            return "[X,O,T]";
        case KEY_CTRL_EXIT:
            return "[EXIT]";
        case KEY_CTRL_SHIFT:
            return "[SHIFT]";
        case KEY_CTRL_ALPHA:
            return "[ALPHA]";
        case KEY_CTRL_OPTN:
            return "[OPTN]";
        case KEY_CTRL_VARS:
            return "[VARS]";
        case KEY_CTRL_UP:
            return "[UP]";
        case KEY_CTRL_DOWN:
            return "[DOWN]";
        case KEY_CTRL_LEFT:
            return "[LEFT]";
        case KEY_CTRL_RIGHT:
            return "[RIGHT]";
        case KEY_CTRL_F1:
            return "[F1]";
        case KEY_CTRL_F2:
            return "[F2]";
        case KEY_CTRL_F3:
            return "[F3]";
        case KEY_CTRL_F4:
            return "[F4]";
        case KEY_CTRL_F5:
            return "[F5]";
        case KEY_CTRL_F6:
            return "[F6]";
        case KEY_CTRL_CATALOG:
            return "[CATALOG]";
        case KEY_CTRL_CAPTURE:
            return "[CAPTURE]";
        case KEY_CTRL_CLIP:
            return "[CLIP]";
        case KEY_CTRL_PASTE:
            return "[PASTE]";
        case KEY_CTRL_INS:
            return "[INS]";
        case KEY_CTRL_MIXEDFRAC:
            return "[MixedFrac]";
        case KEY_CTRL_FRACCNVRT:
            return "[FracConvert]";
        case KEY_CTRL_QUIT:
            return "[QUIT]";
        case KEY_CTRL_PRGM:
            return "[PRGM]";
        case KEY_CTRL_SETUP:
            return "[SETUP]";
        case KEY_CTRL_PAGEUP:
            return "[PAGEUP]";
        case KEY_CTRL_PAGEDOWN:
            return "[PAGEDOWN]";
        case KEY_CTRL_MENU:
            return "[MENU]";
        case KEY_CTRL_RESERVE1:
            return "[RESERVE1]";
        case KEY_CTRL_RESERVE2:
            return "[RESERVE2]";
        case KEY_CTRL_RESERVE3:
            return "[RESERVE3]";
            
        default:
            return "?";
    }
}