title: How to "take real-time screenshots" of live streaming rooms
body: <p>I am using OpenTok's SDKs and APIs to build a live streaming and video conferencing website. I am wondering how websites like Twitch take a "real-time screenshot" of each streaming room and display it on their websites so that users can have a glance at the content of a room. Besides, is it possible to achieve this feature using Zoom's APIs? Thanks!</p>