GtkNotebook "switch-page" Signal

[dhk <dhkuhl optonline net>]

When changing from one tab to another in a GtkNotebook I often need to
know the tab that was selected.  It seems the "switch-page" signal just
tells the current page and there are functions that tell the current
page and will navigate through the page, but I don't see anything that
will tell tell the destination page or the tab that received the signal.

Does anyone know how to determine this?

Thanks,
dhk