ABOUT THE TIX PROGRAMMING LIBRARY
The Tix library is an extension to the Tk toolkit that contains over
40 new widgets for Tk. Features include:
A LOT of new widgets
Rapid Prototyping New Widgets
XPM image suport
Compound images
Display Items and Display Styles
Form geometry manager
Mwm window manager support
WWW: http://tix.sourceforge.net/