Generally, the browser will provide an image which obscures the hidden portion of the logical display surface in some way, such as by blurring or replacing with a color or pattern. How these are handled by the Screen Capture API varies. A visible display surface is a surface which is entirely visible on the screen, such as the frontmost window or tab, or the entire screen.Ī logical display surface is one which is in part or completely obscured, either by being overlapped by another object to some extent, or by being entirely hidden or offscreen. Sharing surfaces include the contents of a browser tab, a complete window, and a monitor (or group of monitors combined together into one surface).
For the purposes of the Screen Capture API, a display surface is any content object that can be selected by the API for sharing purposes.
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