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Date: -- (:)
From: Angela Zhu <angela22.zhu@g...>
Subject: Re: [Caml-list] problem with gbutton
It works.
Thanks!

-Angela

On 11/2/07, Julien Moutinho <julien.moutinho@gmail.com> wrote:
>
> On Fri, Nov 02, 2007 at 10:20:24PM -0500, Angela Zhu wrote:
> > I also want to add
> >
> >       GMain.Idle.add ~callback:(fun () ->  true);
> >
> > But I keep getting:
> >
> > ***********
> > Expecting function has type ?prio:int -> (unit -> bool) -> Glib.Idle.id
> > This argument cannot be applied with label ~callback
> >
> > Any idea?
> As said by the error message, the signature of GMain.Idle.add is:
>   ?prio:int ->      (* an optional argument: the priority  *)
>   (unit -> bool) -> (* an anonymous argument: the callback *)
>   Glib.Idle.id      (* the returned value: an identifier   *)
> Here no argument of GMain.Idle.add has a label named "callback",
> hence the error you get.
>
> Instead do the following:
>   let id = GMain.Idle.add (fun _ -> true) in
>
> Also, there is a manual chapter on labels:
>   http://caml.inria.fr/pub/docs/manual-ocaml/manual006.html
>
> And by the way, do not forget that there is a mailing list
> dedicated to LablGTK:
>   http://yquem.inria.fr/cgi-bin/mailman/listinfo/lablgtk
>
> HTH.
>
>


-- 
Regards,
Angela Zhu
------------------------------------------
Dept. of CS, Rice University
http://www.cs.rice.edu/~yz2/
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