Yes there is, but unfortunately not in RC2 (it's in recent CVS versions only).
So step 1 is to get a recent CVS binary. Available from Ceniza (
here) and Therion (
here). Once you have these you can also get a more recent version by compiling from CVS yourself (sorry, a recent CVS build is required to build from CVS :roll:).
Step 2: Start Code::Blocks, Debug -> Attach to process...
Looks like it needs a PID, so you'll have to get that from somewhere (taskmanager can show them for you).
Edit: typos :evil: