How do you determine table structure using DTI?

I have a database with DDF files and am looking for a way to determine what
the table and index structures are by using the DTI.

The PvGetTable() function returns field info, but not the field offset and
the "flag" does not specify that fields are nullable so I can't find a way
to infer the field offsets. Is there another function that I should use
that can give me the field offsets and information about nullable fields?

Thanks
- Greg


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