原文链接：http://www.it165.net/pro/html/201409/21451.html
1.1首先在CCDirector.h中添加如下代码：并在其中添加头文件 #include "2d/CCRenderTexture.h"
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voidsaveScreenshot(conststd::string& fileName,std::function<(std::string&)>& callback);
1.2然后在CCDirector.cpp中添加如下代码：
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Director::saveScreenshot(std::string &fileName,宋体; background:none">std::string &)> &callback)
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{
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Image::Format format;
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if(std::string::npos != fileName.find_last_of(".")){
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auto extension = fileName.substr(fileName.find_last_of(),fileName.length());
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(!extension.compare(".png")) {
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format = Image::Format::PNG;
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}else".jpg"10.
format = Image::Format::JPG;
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else{
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log("cocos2d: the image can only be saved as JPG or PNG format");
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return;
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}
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auto renderTexture = RenderTexture::create(getWinSize().width,getWinSize().height,Texture2D::PixelFormat::RGBA8888);
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renderTexture->beginWithClear(0.0f,.0f);
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//遍历场景节点对象，填充纹理到RenderTexture中
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getRunningScene()->visit();
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renderTexture->end();
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renderTexture->saveToFile(fileName,format);
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//使用schedule在下一帧中调用callback函数
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auto fullPath = FileUtils::getInstance()->getWritablePath() + fileName;
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auto scheduleCallback = [&,fullPath,callback](floatdt){
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callback(fullPath);
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};
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auto _schedule = getRunningScene()->getScheduler();
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_schedule->schedule(scheduleCallback,宋体; background:none">this,宋体; background:none">false"screenshot");
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}
