How to get a GtkNotebook tab label if not explicitly set?

[Shane Butler <shane butler gmail com>]

Hello,

Can someone tell me if it is possible to get the GtkLabel from a
GtkNotebook if you have not explicitly set the widget yourself?

gtk_notebook_get_tab_label() returns NULL unless you do set your own
widget as the tab label. But I would like to be able to access the
widget for some glade3 stuff...

Regards, Shane