To use the class, create a wxNotebook object and call add_page, passing a window to be used as the page.
Cycles through the tabs.
Deletes the specified page, and the associated window.
Returns the string for the given page.
Returns the currently selected page for event, or -1 if none was selected.
Sequence is divided into X and Y amounts. X is the amount to add to to the wideness of the wxNotebook's tab's and Y is the amount that the text on the tabs will move down. If the values are negative, then X will subtract from the wideness of the tabs, and Y will make the text move up.
This works much like set_padding. However instead of increasing or decreasing the size, the tabs are set to have the width specified by the first value in size, and the length of the second value in size. However, unlike set_padding, a negative value is not to be used.