How to list the content under a part revision in managed mode

Submitted by sixpaws on Fri, 02/13/2015 - 12:26
Forums: 
Journaling / NXOpen API

Suppose I have an item revision in Teamcenter that contains multiple types of datasets or filetypes (ie. UGMASTER, Text, DirectModel, etc). How can I retrieve that information? The tree in TC looks like this:
Item
    ItemRevision
        UGMASTER
        TEXT
        DirectModel

I can get the Item tag, and the ItemRevision tag. But calling UF_UGMGR_list_part_rev_files with the ItemRevision tag returns 0 files.