[Gtk2hs-devel] C2HS and pointers to pointers

[Peter G. <pg...@gm...>]

Hello,

C2HS doesn't seem to handle Ptr (Ptr Foo) the way it should.  For
instance, in GnomeVFS, I have {# call gnome_vfs_open #}.  The C
prototype for that function is:

GnomeVFSResult gnome_vfs_open (GnomeVFSHandle **handle,
                                                         const gchar *text_uri,

GnomeVFSOpenMode open_mode);

But the import C2HS creates is:

foreign import ccall safe " gnome_vfs_open_uri"
  gnome_vfs_open_uri :: ((Ptr Handle) -> ((Ptr URI) -> (CInt -> (IO CInt))))

Should I just ignore that and use castPtr?

Pete