Dynamically loadable object system (both tcl and C based are available)
The ClassyTcl Builder can be used to graphically create interfaces, and is invoked via the cbuild command.
The system is simple, but flexible. Classes and objects are dynamic, and can easily be queried, changed and debugged at runtime.
As of 4/20/05, the download links on sourceforge are dead for this package. Tarball, exe and rpms can be found (at least temporarily) for the latest versions at [1 ].
LV I downloaded the source from the second link above on April 20, 2005. KJN The Sourceforge links were fine on 2007-06-25, including file downloads. The alternative download site at tuwien is unresponsive.