Hallo, On Wed, Nov 2, 2011 at 3:18 PM, Vok Vojwo <ceving at gmail.com> wrote: \> > But the the above Gambit code throws an error: > > *** ERROR IN | gtk-hello| -- (Argument 1) Can't convert to C pointer > (| gtk-hello#2| 0 0) > A null pointer in the Gambit-C FFI is #f, not 0. Cheers, -- -alex http://www.artisancoder.com/