Should I use NBIND_CLASS() for every class in all .h files?

[KongWeibin]

I have a SDK API ".h" file with C-style, a corresponding dynamical lib".so" file and a static lib ".a" file which are compiled by gcc 4.6. There are many C++ .h and .cpp files. They inlude many classes and are complicated. how can I use nbind to access them? Thank you!