Re: Passing values to CodeRefs

[Emmanuele Bassi <ebassi gmail com>]

hi;

On Wed, 2007-01-10 at 12:00 -0600, Nik Ogura wrote:
> Whats the syntax for calling a coderef with arguments here?
>
> this works:   $widget->signal_connect(clicked => \&rankChanged);
>
> this doesnt:  $widget->signal_connect(clicked => \&rankChanged($arg));

$widget->signal_connect(clicked, \&rankChanged, $arg)

> this works in Perl/Tk but not here:
>       $widget->signal_connect(clicked => [\&rankChanged, $arg1, $arg2]);

and this should be:

  $widget->signal_connect(clicked => \&rankChanged, [ $arg1, $arg2 ]);

> likewise: $widget->signal_connect(clicked => sub{});

this should work.

> If this is in the POD, where? (so that I can find it myself next time)

yep, sure:

  perldoc Glib::api
  perldoc Glib::Object
  perldoc Gtk2::api

while on the web you can find the (still unfinished) Gtk2-Perl tutorial
at:

  http://devel.emmanuelebassi.net/gtk2-perl/tutorial/

(for instance, your question is answered in depth on the page about
signals:
http://devel.emmanuelebassi.net/gtk2-perl/tutorial/sec-TheoryOfSignalsAndCallbacks.html)

and the Gtk2-Perl FAQ on the GNOME wiki:

  http://live.gnome.org/GTK2-Perl/FrequentlyAskedQuestions

ciao,
 Emmanuele.

-- 
Emmanuele Bassi,  E: ebassi gmail com
W: http://www.emmanuelebassi.net
B: http://log.emmanuelebassi.net