ActiveX API vs Engine API

Hello,
I want to develop an Operator Interface with C#, but I do not know whether I should use the TestStand ActiveX API or TestStand Engine API. From my view, the TestStand ActiveX API is more sampler than the Engine API, but the Engine API is more flexible and powerful.
Actually, we do not know what it is the different between the ActiveX API and Engine API, could you please to tell me in which case I should use the ActiveX API and in which case I should use Engine API?
What is the advantage and disadvantage of ActiveX API and Engine API separately?
Thanks in advance!
Regards
Simon
Solved!
Go to Solution.

Hi Doug,
At first, thanks for your feedback!
My question is that I want to know the difference between the UI Controls API (Smart Pointer) and the ActivieX API (Pure API)?
The UI Controls API means the API defined in TestStand help document "TestStandUIControlsReferencePoster.pdf", and ActivieX API means the API defined in document "TestStandAPIReferencePoster.pdf".
And I do not know when I should use the UI Controls API and when I should use the ActiveX API?
It seems that the ActiveX API has more powerful to control/access TestStand than the UI Controls API, is that right?
Thanks!
Regards
Simon

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