This is an unofficial mirror of Tkinter reference documentation (based on Python 2.7 and Tk 8.5) created by the late John Shipman.
It was last updated in 2013 and is unmaintained. [More info]
Whenever the selected tab changes in a ttk.Notebook
widget, it generates a “<<NotebookTabChanged>>
” virtual
event; see Section 54.8, “Virtual events”.