Hello, I'm trying to use boost.python to wrap a C function that takes a pointer on a void pointer as an argument. But I'm going wrong to use the example from the FAQ. Could anyone help me on this? my code looks like this: struct void_; BOOST_PYTHON_OPAQUE_SPECIALIZED_TYPE_ID(void_); int myfunc(char * mychar, void ** mypointer); int myfunc_wrp(char * mychar, void_ ** mypointer){ return myfunc(mychar,(void ** ) mypointer); } ... BOOST_PYTHON_MODULE(mymodule){ def("myfunc", &myfunc_wrp); } later in python I do: import mymodule mystring = " " mypointerobject = 0 mymodule.myfunc(mystring,mypointerobject) and get: Boost.Python.ArgumentError: Python argument types in mymodule.myfunc(str, int) did not match C++ signature: myfunc(char *, struct void_ * *) Are there any advices to solve this problem? thank you for your answers. Kind regards, Michael