Upgrading from 1.4.7 to 1.5.6: need answers

OK, so I've been holding off on updating Doxygen because I couldn't 
build the new versions (VC 7.1 was not supported in 1.5.0 and greater 
builds). Since then, I've upgraded to VC9, so I can build again. 
However, I have written a new export format, and a lot of Doxygen's 
internals have changed. I'm trying to find the new way to do the things 
that used to work. Here's the list of questions:

1: MemberDef::hasUserDocumentation() seems to occasionally return true 
for elements that don't actually have documentation. That is, the 
MemberDef::briefDescription() and MemberDef::documentation() are empty. 
Is there a function that will test whether a function actually has 
documentation in these strings, or do I have to fetch them and test to 
see if they are "empty"? I would like a function that returns "true" if 
and only if the user put brief documentation or long documentation.

2: This is something of a long-running issue that I had in the first 
one, but my old workarounds don't work. I have a Definition of some kind 
(I can get the actual type if needs be). And that Definition has some 
number of MemberLists in it. My format doesn't separate the contents of 
a MemberList into the same groupings that Doxygen likes (public, 
private, types, etc). All it wants is a list of user-defined MemberLists 
(groups that the user explicitly created with @name and @{ @} blocks) 
and every other member of the Definition that is NOT in a user-defined 
group. I'm building my own lists of members, so I don't need Doxygen to 
have its MemberList internal structures changed. The user-defined 
MemberLists are easy to find. The problem is that my old workaround to 
get the members that aren't in a user-defined group doesn't work 
anymore. I'm fine with iterating over all the MemberLists in a 
Definition, but I need some way to build a sequence of Definition 
members of a Definition that are not in a user-defined group.

Any ideas?

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/