[gtkmm] Notebook signals confusion?



I am confused about some of the Notebook signals. There are 3 signals
for Gtk::Notebook that are sort of similar: signal_switch_page,
signal_select_page, signal_change_current_page.
How do these signals differ? When precisely are they signaled?
What is the meaning of the parameters?
For example:
void change_current_page(int offset)

what is the value of offset?

void switch_page(GtkNotebookPage* page, guint page_num)

presumably page and page_num are pages and page numbers involved in the switch.

are they the old current page or the new current pages?

Help!

Which of these signals should one hook if one wants to keep
track of the current page? Thank you

-- 
Paul Elliott                       1(512)837-1096
pelliott io com                    PMB 181, 11900 Metric Blvd Suite J
http://www.io.com/~pelliott/pme/   Austin TX 78758-3117

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