case SDLK_RCTRL: return KEYCODE_RCTRL;
case SDLK_LSHIFT: return KEYCODE_LSHIFT;
case SDLK_RSHIFT: return KEYCODE_RSHIFT;
+ case SDLK_LALT: return KEYCODE_LALT;
+ case SDLK_RALT: return KEYCODE_RALT;
case SDLK_PAUSE: return KEYCODE_PAUSE;
case SDLK_LEFT: return KEYCODE_LEFT;
case SDLK_RIGHT: return KEYCODE_RIGHT;