Raised when the agent's view of a source is switched on or off, whoever did it (the person, the page, the server's policy).
Whether the agent is looking at it right now.
The channel the source belongs to, or null for one that is not a channel (a camera, a screen share).
null
Whether the agent may see it.
Every source, with its state after the change.
Raised when the agent's view of a source is switched on or off, whoever did it (the person, the page, the server's policy).