get UIImage from CCRenderTexture

gistfile1.txt

+(UIImage *)getUIImageOfGeneratedScore
{
    CCSprite *socialShare = CCSprite::create("../bg-social-share.png");
    int textureWidth = socialShare->getContentSize().width;
    int textureHeight = socialShare->getContentSize().height;
    socialShare->setPosition(ccp(textureWidth/2, textureHeight/2));
    
    CCRenderTexture* renderer = CCRenderTexture::create(textureWidth, textureHeight);
    
    renderer->begin();
    socialShare->visit();
    renderer->end();
    
    bool isSuccess = renderer->saveToFile("socialScoreShare.png", kCCImageFormatPNG);
    if (isSuccess)
    {
        CCLOG("Write to file successfully.");
    }
    
    UIImage *image = [UIImage imageWithContentsOfFile:[NSString stringWithFormat:@"%s", CCFileUtils::sharedFileUtils()->getWritablePath().append("socialScoreShare.png").c_str()]];
    return image;
}