[9299] in The GTK GIMP ToolKit mailing list archive
[gtk-list] Re: gpointer and callbacks
daemon@ATHENA.MIT.EDU (Nwanua Elumeze)
Wed Oct 14 16:39:09 1998
Date: Wed, 14 Oct 1998 14:37:40 -0600 (MDT)
From: Nwanua Elumeze <nwanua@makaha.colorado.edu>
To: gtk-list@redhat.com
Resent-From: gtk-list@redhat.com
Reply-To: gtk-list@redhat.com
(continuation:)
you could also define adjust_level such:
gint adjust_level(GtkWidget *, GtkEvent *, gpointer)
and call it with
gtk_signal_connect (GTK_OBJECT (vol_adj), "value_changed",
GTK_SIGNAL_FUNC (adjust_level), device);
as long as you typecast it _before_ using it within adjust_level:
MIXER_WRITE ((gint)data),
-------------------------------------------------
I see you're using an "int" for your device;
the only thing that seems to work with "int"s if you want to use them
as pointers is to use the type caster:
gtk_signal_connect (GTK_OBJECT (vol_adj), "value_changed",
GTK_SIGNAL_FUNC (adjust_level), GINT_TO_POINTER(device));
Cheers,
Nwanua.
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