#define KEYBOARD_LEFT 'h' #define KEYBOARD_RIGHT 'l' #define KEYBOARD_DOWN 'j' #define KEYBOARD_UP 'k' #define KEYBOARD_ZOOM_IN 'z' #define KEYBOARD_ZOOM_OUT 'x' #define KEYBOARD_HOME 'n' #define KEYBOARD_END 'm' #define KEYBOARD_PAGE_UP 'u' #define KEYBOARD_PAGE_DOWN 'i' #define KEYBOARD_JUMP_LEFT 'y' #define KEYBOARD_JUMP_RIGHT 'o'