Notebook widget.
A notebook widget is a [Widget.widget] Container.container, i.e. a widget containing contents widgets (the pages), each one being associated to a widget representing this page in the list of displayed tabs.
A notebook can be oriented vertically (tabs are on the left and and are packed vertically) or horizontally (tabs are on top and and are packed horizontally).
inherit Stk.Container.containermethod pack : ?pos:int -> label:Stk.Widget.widget -> Stk.Widget.widget -> unit#pack ~label w adds a new page with contents widget w and label widget label. Optional argument pos can be used to specify a 0-based position for the new page. Default is to append the page.
method unpack : Stk.Widget.widget -> unitunpack w removes the page corresponding to the (contents) widget w.