> Is there a way of running TIB_DDL_Extract to extract just the
> ddl of a particular table?

The TIB_Metadata (in IB_Metadata.pas) was written to replace
most of the older TIB_DDL_* classes. It is this component that
I use in DBak (indeed it was for DBak that I rewrote the code
originally provided by Claudio in the TIB_DDL_* classes and
turned it into TIB_Metadata and its related classes).

In TIB_Metadata there are some OnFilter* events that you can
attach to, amongst other options.

If you want to see TIB_Metadata pushed to its limits then
download the (now free) code for DBak to see how it is used.
http://www.telesiscomputing.com.au/dbk.htm

HTH

--
Geoff Worboys
Telesis Computing