Cocos2d-x3.2スクリーンショット

//GameScene.h

#include "cocos2d.h"

USING_NS_CC;

class GameScene : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();
    
    virtual bool init();
    
    void menuCallback(Ref* pSender);
    
    CREATE_FUNC(GameScene);
    
private:        // auto 
    Size size;
    Sprite *sprite;
};

//GameScene.cpp

#include "GameScene.h"

USING_NS_CC;

cocos2d::Scene* GameScene::createScene()
{
    auto scene = Scene::create();   // 
    auto layer = GameScene::create();   // 
    scene->addChild(layer);
    return scene;
}

// 
bool GameScene::init()
{
    if(!Layer::init())      // 
        return false;
    
    // 
    size = Director::getInstance()->getVisibleSize();
    //auto size = Director::getInstance()->getWinSize();
    // 
    sprite = Sprite::create("OnePiece_1.png");
    sprite->setPosition(Vec2(size.width/2, size.height/2));
    this->addChild(sprite);
    
    // 
    auto item = MenuItemFont::create("click", CC_CALLBACK_1(GameScene::menuCallback, this));
    item->setPosition(Vec2(size.width*0.9, size.height/2));
    
    auto menu = Menu::create(item, NULL);
    menu->setPosition(Vec2::ZERO);
    this->addChild(menu);
    
    return true;
}

void GameScene::menuCallback(Ref* pSender)
{
    // 
    auto texture = RenderTexture::create(size.width, size.height);
    texture->begin();
    Director::getInstance()->getRunningScene()->visit();    // 
    texture->end();
    
    if (texture->saveToFile("ScreenShot.png", Image::Format::PNG))
    {    //3.0 , PNG JPG 
        log("Success.");
        
        // 
        // 
        std::string filePath = FileUtils::getInstance()->getWritablePath() + "ScreenShot.png";
        // 
        //auto sprite = Sprite::createWithTexture(texture->getSprite()->getTexture());
        
        auto sprite = Sprite::create(filePath.c_str());
        sprite->setPosition(Vec2(size.width/2, size.height/2));
        //sprite->setFlippedY(true);     // 
        sprite->setScale(0.5f);
        this->addChild(sprite);
    }
}