I'm a basic user of boost::python, I have just start with it this month and
   I look into wrapping FLTK2, I have wrapped the basics Widgets and they work
   great, except for collabck fonctions. I have find an old message in this
   mailng list refering to the same poblem with fltk but honestly I didn't
   understand.
   http://lists.boost.org/Archives/boost/2001/04/10820.php
   if someone can help me with an exemple I will be grateful
   plz I need help