Unsolved Save the image shown by QWebEngineView
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I can open and show this image on the webview.
How could I get the image already captured by the web view?This image already exist in the view, there should be someway to get it without downloading the image again.
A naive solution is QClipboard
web_page_->triggerAction(QWebEnginePage::WebAction::Copy); QClipboard *clipboard = QGuiApplication::clipboard(); QImage img = clipboard->image(QClipboard::Clipboard); if(!img.isNull()){ qDebug()<<"can save image yeah:"<<img.save("smoke.jpg"); }else{ qDebug()<<"cannot copy to clipboard"; }
Problem of this solution is I have no way to stop another operation which could affect the contents of global clipboard, besides the image is different with the origin. Do I have a way to read the image buffer captured by the QWebEngineView(or Page?)? Thanks
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I am scraping images, so far the images could be downloaded are around 90%(it depends), following are my guest, if I can open and download the image by web engine, those servers could have a higher chances to believe "I am a human", that is why I want to try on using web engine to download the image