Syntax
enum KEY_ACTION
{
KEY_NULL = 0,
CTRL_A = 1,
CTRL_B = 2,
CTRL_C = 3,
CTRL_D = 4,
CTRL_E = 5,
CTRL_F = 6,
CTRL_H = 8,
TAB = 9,
CTRL_K = 11,
CTRL_L = 12,
ENTER = 10,
CTRL_N = 14,
CTRL_P = 16,
CTRL_T = 20,
CTRL_U = 21,
CTRL_W = 23,
ESC = 27,
UNIT_SEP = 31,
BACKSPACE = 127
};