Trapping Glib critical error messages

Phil Wolff via gtkmm-list <[email protected]>
Newsgroups gmane.comp.gnome.gtkmm
Message-ID <[email protected]> 
GLib-GObject-CRITICAL **: 15:30:09.453: g_object_unref: assertion 
'G_IS_OBJECT (object)' failed
GLib-GIO-CRITICAL **: 15:30:09.453: 
g_dbus_connection_signal_unsubscribe: assertion 'G_IS_DBUS_CONNECTION 
(connection)' failed

I'm getting these messages seemingly at random in a program I'm working 
on. Can someone tell me the Glib g_xxxx function that prints these 
messages so I can trap them to get a traceback?
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.