Hi,

I have some patches to make the "Automatic PyUnicode to 'const char*'"
possible (please see
http://mail.python.org/pipermail/c++-sig/2003-August/004997.html for
details) and make the export of '__stdcall' function possible.
In addition to the changes in the boost.python source, the file
<boost/type_traits/detail/is_mem_fun_pointer_impl.hpp>  also need to changed
to add some lines to match the (__stdcall T::*) functions, many lines in
this file seemed were generated by the compile through defining something I
don't known, maybe Mr. David Abrahams can make these changes (it exists in
another library)

#ifdef BOOST_MEM_FN_ENABLE_STDCALL
template <class R, class T > 
struct is_mem_fun_pointer_impl<R (__stdcall T::*)() >  {
BOOST_STATIC_CONSTANT(bool, value = true); };
...
...
lots of lines similar to this

...

#endif

Lijun Qin
http://www.solidshare.com

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p.s.
Use the convert_unicode_policy like this:
.def("SetWindowText", convert_unicode_policy<some_other_policy_you_needed<> 
> ())
Then you can pass both PyString and PyUnicode to your method, without the
explicit str() call.