[SOLVED] can I get an image from an embedded HTML5 Canvas into a QWidget?
I have a QWebView widget and the page which it loads contains an embedded HTML5 canvas element which shows a custom image/scene based on internet server data.
On the Qt side (ie. within a slot on the main form) I'd like to "reach into" the DOM of the embedded webpage and "grab" the image data off the canvas element for further processing. I don't want the whole WebView, just the image data on the particular embedded canvas. Is this possible? If so, how?
you might be able to do something like
you'll have to change the script to suit your need
I got it to work by doing the following to copy the embedded canvas into a QImage, from there I can do with it what I need.
QWebElement el = myWebView->page()->mainFrame()->findFirstElement("#canvas0");
QImage image(el.geometry().width(), el.geometry().height(), QImage::Format_ARGB32); QPainter painter(&image); el.render(&painter); painter.end();@