passing node3d to c++

[jdoerr]

hello,

xabbu already asked to access the underlaying osg::Node of a node3d object. We own a vizard developer license and could use the modifier plugin, but we'll like to pass a node3d object to c++ using a .dll/.pyd file.
We're able to use PyArg_ParseTuple to parse the according PyObject*. We don't know the implementation of ob_type of node3d.
Is it possible to reach the pointer to the underlaying osg::Node?

Many Thanks for your advice