This event is raised when one or more parts of the object's state may have changed.

Occurs after a FIFO has completed an acquisition, perhaps unsuccessfully. If the acquisition was unsuccessful, Acquire or CompleteAcquire will return an error. The acquisition may have been initiated by a call to Acquire, a call to StartAcquire, or by the acquisition system if you are using auto-trigger mode.

Occurs after an acquisition FIFO is flushed.

Occurs when an acquisition FIFO determines that the camera's field of view can be changed without affecting the acquired image.

Occurs after a FIFO has missed a trigger. This usually means that triggers are coming in too fast to be processed.