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What is the deal with Entity::FindAttribute?

Question asked by John Alexander on Jun 3, 2016

I'm starting to explore methods of assigning and reading attributes in entities for marking surface finishes during the design phase.

In my exploration, I came across the FindAttributes method which takes the target AttributeDef as an argument along with some ambiguous integer. At first glance, I thought maybe this would work like getters to other list-type data where you can specify which instance you want and (somewhere in the API) there is a way of figuring out the total count to iterate over.

Then I took a peek at the VBA example for finding attributes:

    While swAtt Is Nothing And i < 300

        Set swAtt = swEnt.FindAttribute(swAttDef, i)

        i = i + 1



What the junk is the meaning of that iterator? Are there any guarantees that the "correct" value is less than 300?