GtkNotebook signals

["ANDREW PAPROCKI, BLOOMBERG/ 731 LEXIN" <apaprocki bloomberg net>]

Can someone fill me in if there is proper documentation for the signals on 
GtkNotebook? Specifically, these:

"change-current-page"
"focus-tab"
"select-page"
"switch-page"

If an application wishes to prevent the notebook from switching pages if some 
type of validation fails on the current existing page, is "select-page" the 
proper signal to use with a return of FALSE?

If someone can explain these in a bit more detail, we could update the function 
comments so the docs are more clear.

Thanks,

Andrew
Bloomberg LP