# 20.2 `Tix` -- Extension widgets for Tk

The `Tix` (Tk Interface Extension) module provides an additional rich set of widgets. Although the standard Tk library has many useful widgets, they are far from complete. The `Tix` library provides most of the commonly needed widgets that are missing from standard Tk: `HList`, `ComboBox`, `Control` (a.k.a. SpinBox) and an assortment of scrollable widgets. `Tix` also includes many more widgets that are generally useful in a wide range of applications: `NoteBook`, `FileEntry`, `PanedWindow`, etc; there are more than 40 of them.

With all these new widgets, you can introduce new interaction techniques into applications, creating more useful and more intuitive user interfaces. You can design your application by choosing the most appropriate widgets to match the special needs of your application and users.

See Also:

Tix Homepage
  The home page for `Tix`. This includes links to additional documentation and downloads.

Tix Man Pages
  On-line version of the man pages and reference material.

Tix Programming Guide
  On-line version of the programmer's reference material.

Tix Development Applications
  Tix applications for development of Tix and Tkinter programs. Tide applications work under Tk or Tkinter, and include TixInspect, an inspector to remotely modify and debug Tix/Tk/Tkinter applications.