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I think you would be interested in the AFDataPipe class. This is the modern way of handling signups in the AF SDK similar to the pisn_evmexception methods in the PI API.
1 of 1 people found this helpful
To add on Vince's reply, the purpose of those functions is to
1. sign up your application(or interface) to PI Snapshot Subsystem for your given tags
2. Retrieve any updates on the signed-up tags when triggered
But I don't believe that there is a 1:1 mapping functions.The link given above by Vince should contains examples from our Devs.
In AF SDK, this is treated as DataPipe. piDatapipes are special type of a AFDataPipe that are most relevant to tags.
For snapshot, you can setup your Datapipe type as AFDataPipeTypes.Snapshot.