ref: fd83a7d1829e1fca461bde207b5b14b6d9b8ed81
dir: /sys/src/cmd/python/Demo/tix/README.txt/
About Tix.py ----------- Tix.py is based on an idea of Jean-Marc Lugrin (lugrin@ms.com) who wrote pytix (another Python-Tix marriage). Tix widgets are an attractive and useful extension to Tk. See http://tix.sourceforge.net for more details about Tix and how to get it. Features: 1) It is almost complete. 2) Tix widgets are represented by classes in Python. Sub-widgets are members of the mega-widget class. For example, if a particular TixWidget (e.g. ScrolledText) has an embedded widget (Text in this case), it is possible to call the methods of the child directly. 3) The members of the class are created automatically. In the case of widgets like ButtonBox, the members are added dynamically.