wine users - Feb 2011 - windows app to communicate with cocoa lib

Does anyone know of a way to get my Windows MFC app running under WINE to call a
function in a native OS X lib or plugin? I would like the ability for my Windows
app to call some custom functions which would pull information about the current
machine, such as OS X version for example.

I dont really care as to how but I was thinking I could write  a 'generic
c++ plugin'  or 'c++ dynamic library' in cocoa and then wrap that
into a Windows dll. Or I could write a lib, compile it with winelib lib and call
it. But is either scenario even possible? And how?

If you could point me in right direction for documentation that would be helpful
too.

Thanks

That's the whole purpose of Winelib. In code compiled using Winelib you can
make both Win32 and 'native' OS calls. Any function exported through a
so called '.spec' file can be used directly by a Windows application.
Look for more information in docs.