gtkmm guidelines?

Hi:

Are there some gtkmm guidelines to develop?

Usually in c++ APIs i see method like pascal case, but in gtkmm or ruby 
language  is like gtk+.

Usually C++ libraries use the same case to c#:
http://cplus.about.com/od/learnc/ss/csharpclasses_5.htm

How are people developing applications with gtkmm technology?

Therefore i want use libraries in c++ with different notations (gdal, 
liblas,...) and (gtkmm,glibmm,...). Which is for me?

Regards.

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