insert_page

Description:

public int insert_page (Widget child, Widget? tab_label, int position)

Insert a page into this at the given position.

this	a Notebook
child	the Widget to use as the contents of the page
tab_label	the Widget to be used as the label for the page, or null to use the default label, “page N”
position	the index (starting at 0) at which to insert the page, or -1 to append the page after all other pages

the index (starting from 0) of the inserted page in the notebook, or -1 if function fails