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Purpose
In order to support screen sharing the client api needs enumerate screens and windows. This api provided a list of screens (each monitor) and list of windows available; providing title, id and thumbnail. This api is essentially equivalent of electron api: https://electron.atom.io/docs/api/desktop-capturer/#desktopcapturergetsourcesoptions-callback
getMediaSources API
| Code Block |
|---|
getMediaSources(options, callback); |
where options (Object) is:
...
types String[] - An array of Strings that lists the types of desktop sources to be captured, available
...
types are screen and window.
thumbnailSize (optional)
...
- { width: Number, height: number } The size that the media source thumbnail should be scaled to. Default is 150 x 150.
where callback (Function) has arguments:
errorErrorArray of DesktopSource
where DesktopSource (Object) is:
id (String) - The identifier of a window or screen that can be used as a
chromeMediaSourceIdconstraint when calling [navigator.webkitGetUserMedia]. The format of the identifier will bewindow:XXorscreen:XX, whereXXis a random generated number.name (String) - A screen source will be named either
Entire ScreenorScreen <index>, while the name of a window source will match the window title.thumbnail (String) - Base64 encoded png image.