Hi there,
Depending on which version you're using it might be either 50 or SDLK_2. Any way, here is a list of codes to use:
Here is the list of the SDL codes from from SDL_keysym.h.
SDLK_UNKNOWN = 0,
SDLK_FIRST = 0,
SDLK_BACKSPACE = 8,
SDLK_TAB = 9,
SDLK_CLEAR = 12,
SDLK_RETURN = 13,
SDLK_PAUSE = 19,
SDLK_ESCAPE = 27,
SDLK_SPACE = 32,
SDLK_EXCLAIM = 33,
SDLK_QUOTEDBL = 34,
SDLK_HASH = 35,
SDLK_DOLLAR = 36,
SDLK_AMPERSAND = 38,
SDLK_QUOTE = 39,
SDLK_LEFTPAREN = 40,
SDLK_RIGHTPAREN = 41,
SDLK_ASTERISK = 42,
SDLK_PLUS = 43,
SDLK_COMMA = 44,
SDLK_MINUS = 45,
SDLK_PERIOD = 46,
SDLK_SLASH = 47,
SDLK_0 = 48,
SDLK_1 = 49,
SDLK_2 = 50,
SDLK_3 = 51,
SDLK_4 = 52,
SDLK_5 = 53,
SDLK_6 = 54,
SDLK_7 = 55,
SDLK_8 = 56,
SDLK_9 = 57,
SDLK_COLON = 58,
SDLK_SEMICOLON = 59,
SDLK_LESS = 60,
SDLK_EQUALS = 61,
SDLK_GREATER = 62,
SDLK_QUESTION = 63,
SDLK_AT = 64,
SDLK_LEFTBRACKET = 91,
SDLK_BACKSLASH = 92,
SDLK_RIGHTBRACKET = 93,
SDLK_CARET = 94,
SDLK_UNDERSCORE = 95,
SDLK_BACKQUOTE = 96,
SDLK_a = 97,
SDLK_b = 98,
SDLK_c = 99,
SDLK_d = 100,
SDLK_e = 101,
SDLK_f = 102,
SDLK_g = 103,
SDLK_h = 104,
SDLK_i = 105,
SDLK_j = 106,
SDLK_k = 107,
SDLK_l = 108,
SDLK_m = 109,
SDLK_n = 110,
SDLK_o = 111,
SDLK_p = 112,
SDLK_q = 113,
SDLK_r = 114,
SDLK_s = 115,
SDLK_t = 116,
SDLK_u = 117,
SDLK_v = 118,
SDLK_w = 119,
SDLK_x = 120,
SDLK_y = 121,
SDLK_z = 122,
SDLK_DELETE = 127,
SDLK_KP0 = 256,
SDLK_KP1 = 257,
SDLK_KP2 = 258,
SDLK_KP3 = 259,
SDLK_KP4 = 260,
SDLK_KP5 = 261,
SDLK_KP6 = 262,
SDLK_KP7 = 263,
SDLK_KP8 = 264,
SDLK_KP9 = 265,
SDLK_KP_PERIOD = 266,
SDLK_KP_DIVIDE = 267,
SDLK_KP_MULTIPLY = 268,
SDLK_KP_MINUS = 269,
SDLK_KP_PLUS = 270,
SDLK_KP_ENTER = 271,
SDLK_KP_EQUALS = 272,
SDLK_UP = 273,
SDLK_DOWN = 274,
SDLK_RIGHT = 275,
SDLK_LEFT = 276,
SDLK_INSERT = 277,
SDLK_HOME = 278,
SDLK_END = 279,
SDLK_PAGEUP = 280,
SDLK_PAGEDOWN = 281,
SDLK_F1 = 282,
SDLK_F2 = 283,
SDLK_F3 = 284,
SDLK_F4 = 285,
SDLK_F5 = 286,
SDLK_F6 = 287,
SDLK_F7 = 288,
SDLK_F8 = 289,
SDLK_F9 = 290,
SDLK_F10 = 291,
SDLK_F11 = 292,
SDLK_F12 = 293,
SDLK_F13 = 294,
SDLK_F14 = 295,
SDLK_F15 = 296,
SDLK_NUMLOCK = 300,
SDLK_CAPSLOCK = 301,
SDLK_SCROLLOCK = 302,
SDLK_RSHIFT = 303,
SDLK_LSHIFT = 304,
SDLK_RCTRL = 305,
SDLK_LCTRL = 306,
SDLK_RALT = 307,
SDLK_LALT = 308,
SDLK_RMETA = 309,
SDLK_LMETA = 310,
SDLK_LSUPER = 311, /* Left "Windows" key */
SDLK_RSUPER = 312, /* Right "Windows" key */
SDLK_MODE = 313, /* "Alt Gr" key */
SDLK_COMPOSE = 314, /* Multi-key compose key */
SDLK_HELP = 315,
SDLK_PRINT = 316,
SDLK_SYSREQ = 317,
SDLK_BREAK = 318,
SDLK_MENU = 319,
SDLK_POWER = 320, /* Power Macintosh power key */
SDLK_EURO = 321, /* Some european keyboards */
SDLK_UNDO = 322, /* Atari keyboard has Undo */
Hope this helps.
Cheers,
Congui