The previously created static prototype may look fancy, but is not of much use. We need a service capable of taking screenshots and recording screencasts.
If it was about a screenshot of the application window, we would simply use the API on NW.js:
import * as fs from "fs"; function takeScreenshot( filePath ){ appWindow.capturePage(( img ) => { fs.writeFileSync( filePath, img, "base64" ); }, { format : "png", datatype : "raw" }); }
But we need a screenshot of the screen and, therefore, we have to get access to display input. W3C includes a specification draft, "Media Capture and Streams" (http://bit.ly/2qTtLXX), which describes an API to capture displayed media (mediaDevices.getDisplayMedia). Unfortunately, at ...