cocos2d-x3.0 windows環境下 textfield無法處理TEXTFIELD_EVENT_DELETE_BACKWARD事件

1、修改cocos2d-x-3.0\cocos\2d\platform\desktop\CCGLView.cpp    onGLFWKeyCallback函數

void GLView::onGLFWKeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods)
{
    if (GLFW_REPEAT != action)
    {
        EventKeyboard event(g_keyCodeMap[key], GLFW_PRESS == action);
        if ((EventKeyboard::KeyCode::KEY_BACKSPACE == event.getKeyCode()) && event.getPressStatus())
        {
             IMEDispatcher::sharedDispatcher()->dispatchDeleteBackward();
        } 
        else
        {
            auto dispatcher = Director::getInstance()->getEventDispatcher();
            dispatcher->dispatchEvent(&event);
        }
    }
} 

2、修改cocos2d-x-3.0\cocos\2d\CCEventKeyboard.h 

將_keyCode和_isPressed訪問屬性修改為public

public:
    KeyCode _keyCode;
    bool _isPressed;
private:
    friend class EventListenerKeyboard;