Achievable using VBA:
- universe objects (dimensions, details, measures)
- filters in data providers
- report level formulas and variables (with their formulas)
Not possible in VBA:
- everything related to structure of a report - sections, breaks, cells, data blocks, block filters - maybe some little information can be obtained, I don’t remember exactly. I know that when I was interested in this problem as well that I gave up when I saw that VBA object did not provide a lot of useful information.
Have a look also at the code of my utility (DeskI Document Inspector) to see how to interrogate a DeskI document (or DeskI documents in a loop) and how to check objects, formulas, data providers, their SQLs…
Marek Chladny 
(BOB member since 2003-11-27)