I did an experiment. I used the Message Tester tool plugin sample. I had a view with a Smart Map open and I had a view with Message Tester tool open.
If I on the Smart Map went into setup mode and moved a camera I saw in the Message Tester tool a “SmartClient.SmartMapPositionChangedIndication”.
I did not look into the parameters that follow this event so I hope this will be the hint you need to get going: “SmartClient.SmartMapPositionChangedIndication”
(Let me know if this hint does not lead you to a solution.)