RE: Help: how to disconnect a signal?

["Tom Liu" <tom liu flextrade com>]

Is this only way to do so?  What a pain!!

Also I have to free glist when widget got destroyed to avoid memory
leak:

g_object_set_data_full(G_OBJECT(obj), "handler_list", l,g_list_free);  

thanks!



-----Original Message-----
From: gtk-app-devel-list-admin gnome org
[mailto:gtk-app-devel-list-admin gnome org] On Behalf Of Tristan Van
Berkom
Sent: Thursday, November 20, 2003 10:51 AM
To: Tom Liu
Cc: 'Tim Müller'; gtk-app-devel-list gnome org
Subject: Re: Help: how to disconnect a signal?

/*********************
  CODE TO CONNECT
*********************/
gint sig_id = g_signal_connect(G_OBJECT(obj));
GList *l = NULL;

/* first time NULL */
l = g_object_get_data(G_OBJECT(obj), "handler_list");
l = g_list_append(l, sig_id);
g_object_set_data(G_OBJECT(obj), "handler_list", l);  

  /***************************************
  CODE TO DISCONNECT ALL HANDLERS
  ***************************************/
GList *list = g_object_get_data(G_OBJECT(obj), "handler_list");
GList *l = list;
while (l) {
    g_signal_handler_disconnect(G_OBJECT(obj), (gint )l->data);
    l = l->next;
}
list = (g_list_free(list), NULL);
g_object_set_data(G_OBJECT(obj), "handler_list", NULL);  


Cheers,
                    -Tristan




Tom Liu wrote:

> I didn't record the id of the signal and don't know how many functions
> conneted. I just want to disconnect all the connected functions.
>
> The thing I need this is I am porting the Motif to GTK.
> In the old program, I have a pice of code like:
>       Widget widg;
>       XtRemoveAllCallbacks(widg, XmNmodifyVerifyCallback);
>       XtRemoveAllCallbacks(widg, XmNactivateCallback);
>
> Thanks.
>
>
>
> -----Original Message-----
> From: gtk-app-devel-list-admin gnome org
> [mailto:gtk-app-devel-list-admin gnome org] On Behalf Of Tim Müller
> Sent: Thursday, November 20, 2003 4:55 AM
> To: gtk-app-devel-list gnome org
> Subject: Re: Help: how to disconnect a signal?
>
> On Wednesday 19 November 2003 22:23, Tom Liu wrote:
>
>  
>
> > I want to disconnect all the "clicked" signal from a button. I spend
> >    
> an
>  
>
> > hour already, don't know how to use the function
> >
> > g_signal_handlers_disconnect_matched
> >
> > I tried: g_object_disconnect (G_OBJECT(w),"clicked") also. Doesn't
> >    
> work.
>
> gulong id;
>
> id = g_signal_connect(button, "clicked", G_CALLBACK(onButtonClicked),
> NULL);
>
> g_signal_handler_disconnect(button, id);
>
>
> or:
>
> g_signal_connect(button, "clicked", G_CALLBACK(onButtonClicked), NULL);
>
> g_signal_handlers_disconnect_by_func(button, onButtonClicked, NULL);
>
>
> See http://developer.gnome.org/doc/API/2.0/gobject/gobject-Signals.html
>
> Cheers
> -Tim
>
>
>
>
> _______________________________________________
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> gtk-app-devel-list gnome org
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>
>
>  
--
"A line of code is worth a thousand words"
    -me

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