ConstantsCameraHiddenDataApplicationId Field

Special application Id that may be provided when calling SendData(Camera, String, DateTime, String) (for generating an "External Data Event" for a camera).
When using this Id, the Operator Client hides all the other data associated to the event from the user. Note that hidden data are still written to the logbook, and can be accessed by the user through the Logbook Search.

public const string CameraHiddenDataApplicationId = "$$HIDDEN_DATA_APPLICATION"