The header file KEYCODE.H contains these key code definitions

        Shift status codes:

            #define RSHIFT          0x01
            #define LSHIFT          0x02
            #define CTRL            0x04
            #define ALT             0x08
            #define SCROLLLOCK      0x10
            #define NUMLOCK         0x20
            #define CAPSLOCK        0x40
            #define INS             0x80


        Key codes:

            #define F1              315
            #define F2              316
            #define F3              317
            #define F4              318
            #define F5              319
            #define F6              320
            #define F7              321
            #define F8              322
            #define F9              323
            #define F10             324
            #define F11             389
            #define F12             390

            #define SHIFT_F1        340
            #define SHIFT_F2        341
            #define SHIFT_F3        342
            #define SHIFT_F4        343
            #define SHIFT_F5        344
            #define SHIFT_F6        345
            #define SHIFT_F7        346
            #define SHIFT_F8        347
            #define SHIFT_F9        348
            #define SHIFT_F10       349
            #define SHIFT_F11       391
            #define SHIFT_F12       392

            #define CTRL_F1         350
            #define CTRL_F2         351
            #define CTRL_F3         352
            #define CTRL_F4         353
            #define CTRL_F5         354
            #define CTRL_F6         355
            #define CTRL_F7         356
            #define CTRL_F8         357
            #define CTRL_F9         358
            #define CTRL_F10        359
            #define CTRL_F11        393
            #define CTRL_F12        394

            #define ALT_F1          360
            #define ALT_F2          361
            #define ALT_F3          362
            #define ALT_F4          363
            #define ALT_F5          364
            #define ALT_F6          365
            #define ALT_F7          366
            #define ALT_F8          367
            #define ALT_F9          368
            #define ALT_F10         369
            #define ALT_F11         395
            #define ALT_F12         396

            #define ALT_1           376
            #define ALT_2           377
            #define ALT_3           378
            #define ALT_4           379
            #define ALT_5           380
            #define ALT_6           381
            #define ALT_7           382
            #define ALT_8           383
            #define ALT_9           384
            #define ALT_0           385
            #define ALT_HYPHEN      386
            #define ALT_EQUAL       387

            #define ALT_Q           272
            #define ALT_W           273
            #define ALT_E           274
            #define ALT_R           275
            #define ALT_T           276
            #define ALT_Y           277
            #define ALT_U           278
            #define ALT_I           279
            #define ALT_O           280
            #define ALT_P           281
            #define ALT_A           286
            #define ALT_S           287
            #define ALT_D           288
            #define ALT_F           289
            #define ALT_G           290
            #define ALT_H           291
            #define ALT_J           292
            #define ALT_K           293
            #define ALT_L           294
            #define ALT_Z     300
            #define ALT_X     301
            #define ALT_C     302
            #define ALT_V     303
            #define ALT_B     304
            #define ALT_N     305
            #define ALT_M     306

            #define BACKSPACE 8
            #define ENTER     13
            #define ESC       27
            #define SPACEBAR  32
            #define SPACE     32
            #define TAB       9
            #define SHIFT_TAB 271

            #define HOME      327
            #define UPARROW   328
            #define PGUP      329
            #define LEFTARROW 331
            #define RIGHTARROW 333
            #define END       335
            #define DOWNARROW 336
            #define PGDN      337
            #define INSERT    338
            #define DELETE    339

            #define CTRL_PRTSC  370
            #define CTRL_LEFT 371
            #define CTRL_RIGHT  372
            #define CTRL_END  373
            #define CTRL_PGDN 374
            #define CTRL_HOME 375
            #define CTRL_PGUP 388

            #define CTRL_A    1
            #define CTRL_B    2
            #define CTRL_C    3
            #define CTRL_D    4
            #define CTRL_E    5
            #define CTRL_F    6
            #define CTRL_G    7
            #define CTRL_H    8
            #define CTRL_I    9
            #define CTRL_J    10
            #define CTRL_K    11
            #define CTRL_L    12
            #define CTRL_M    13
            #define CTRL_N    14
            #define CTRL_O    15
            #define CTRL_P    16
            #define CTRL_Q    17
            #define CTRL_R    18
            #define CTRL_S    19
            #define CTRL_T    20
            #define CTRL_U    21
            #define CTRL_V    22
            #define CTRL_W    23
            #define CTRL_X    24
            #define CTRL_Y    25
            #define CTRL_Z    26