Re: g_object_notify meaning

["Padraig O'Briain" <Padraig Obriain Sun COM>]

"visible" is a property and this call notifies that the property has changed. It 
causes a "notify" signal to be emitted and you can write a signal handler which 
connect to the "notify" signal and thus be informed that a property has changed.

We make extensive use of it in Gnome Accessibility.

Padraig

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> Hello,
> 
> I'd like to understand the following line which stand in
> gtk_widget_show/hide:
>       g_object_notify (G_OBJECT (widget), "visible");
> 
> Is 'visible' some signal (who is intrested in receiving it) ? Is that
> for GTK_VISIBLE flag delayed update ? If so, when will the update be
> done, why not changing the flag at this point ?
> 
>     Thanks,
> 
>         Philippe Ribet
> 
> 
> 
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