Re: removing signal handler when finalizing a gobject instance.

[Michael Natterer <mitch gimp org>]

Stefan Kost <kost imn htwk-leipzig de> writes:

> hi hi,
>
> I have an own gobject class. an instance of this class is used somewhere and
> signal handlers are connected to signals, where this instance is passed as
> user_data.
> Am I right that the application developer is responsible for removing the signal
> handlers when the instance that is passed as user_data is disposed.
> Otherwise the signal handler gets called with user_data pointer to invalid mem.
>
> If I understand it right, I just need to find a way to do that ...

The way to do that is using

  g_signal_connect_object (instance, "foo-signal",
                           G_CALLBACK (my_callback),
                           data_object, 0);

This way the handler is automatically disconnected from "instance"
as soon as "data_object" goes away.

ciao,
--mitch