cocos2d-x截图功能clippingnode它也可用于——白费

bool Director::saveScreenshot(const std::string& fileName,const std::function<void(const std::string&)>& callback)
{
Image::Format format;
//进行后缀推断
if(std::string::npos != fileName.find_last_of(".")){
auto extension = fileName.substr(fileName.find_last_of("."),fileName.length());
if (!extension.compare(".png")) {
format = Image::Format::PNG;
} else if(!extension.compare(".jpg")) {
format = Image::Format::JPG;
} else{
CCLOG("cocos2d: the image can only be saved as JPG or PNG format");
return false;
}
} else {
CCLOG("cocos2d: the image can only be saved as JPG or PNG format");
return false ;
}
//获取屏幕尺寸，初始化一个空的渲染纹理对象
auto renderTexture = RenderTexture::create(getWinSize().width, getWinSize().height, Texture2D::PixelFormat::RGBA8888, GL_DEPTH24_STENCIL8); //最后一个參数省略的话。对clippingnode截图是无效的
//清空并開始获取
renderTexture->beginWithClear(0.0f, 0.0f, 0.0f, 0.0f);
//遍历场景节点对象，填充纹理到RenderTexture中
getRunningScene()->visit();
//结束获取
renderTexture->end();
//保存文件
renderTexture->saveToFile(fileName , format);
//使用schedule在下一帧中调用callback函数
auto fullPath = FileUtils::getInstance()->getWritablePath() + fileName;
auto scheduleCallback = [&,fullPath,callback](float dt){
callback(fullPath);
};
return true;
}

Director::getInstance()->saveScreenshot("sss.png"， nullptr);

#include "base/ccUtils.h"
utils::captureScreen([](){log("ok");}, "dd.png");