[plt-scheme] example of converting win32 program into scheme extension

Hi,

I'm looking for an example of converting a win32 program into a scheme
extension.  Any HelloWorld example would do.  Then I'll try to apply that
to a simple Windows program (not much more than WinMain and WndProc),
which uses the QuickTime for Windows SDK to play movies.  Of course the
eventual goal is access to the QuickTime SDK from scheme.

Thanks,

Ron
stanonik at cogsci.ucsd.edu