Tixapps

is a library and suite of programs which work as either Tcl or Tkinter applications.

It includes:

TixInspect: an inspector for Tix/Tk applications. It uses Tk's send command to retrieve infomation from other Tk applications.
TixDebug: a debugger to work with tixinspect.
TixInfo: an info browser for GNU documentation.
ObjTix: an object oriented wrapper for Tix's OO framework.

Binaries are available for Linux and Windows at http://freshmeat.net/projects/tixapps/