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cocos2d-x节点（CCGrabber.h)API

温馨提醒：为了大家能更好学习，强烈推荐大家看看本人的这篇博客 Cocos2d-X权威指南笔记

FBO 类抓取屏幕上的内容 

///cocos2d-x-3.0alpha0/cocos2dx/effects/** FBO 类抓取屏幕上的内容 */#ifndef __EFFECTS_CCGRABBER_H__#define __EFFECTS_CCGRABBER_H__#include "CCConfiguration.h"#include "cocoa/CCObject.h"#include "CCGL.h"NS_CC_BEGINclass Texture2D;/** * @addtogroup effects * @{ *//** FBO 类抓取屏幕上的内容 */class Grabber : public Object{public:    /**     * @js ctor     */    Grabber(void);    /**     * @js NA     * @lua NA     */    ~Grabber(void);    void grab(Texture2D *texture);    void beforeRender(Texture2D *texture);    void afterRender(Texture2D *texture);protected:    GLuint _FBO;    GLint _oldFBO;    GLfloat    _oldClearColor[4];};// end of effects group/// @}NS_CC_END#endif // __EFFECTS_CCGRABBER_H__