Ccdoc certainly isn't the only tool and it probably isn't the best one. My goal with this project is to improve source code documentation. To that end, I try to provide links to as many tools as I can to help you find the tool(s) that you need.
I recently found an excellent site that lists a whole bunch of different tools for documenting C++ source code:
If you know of others, please send me an e-mail with a link.