KeyboardInput

auto keyboardListener = EventListenerKeyboard::create();
keyboardListener->onKeyPressed = CC_CALLBACK_2(Object::onKeyboardDown, this);
keyboardListener->onKeyReleased = CC_CALLBACK_2(Object::onKeyboardUp, this);
getEventDispatcher()->
  addEventListenerWithSceneGraphPriority(keyboardListener, this);

void Object::onKeyboardDown(
  cocos2d::EventKeyboard::KeyCode keycode, cocos2d::Event *event){

  if(keycode == cocos2d::EventKeyboard::KeyCode::KEY_SPACE)
    printf("space bar pressed\n");
}