
TclProp 2.0b release

	Project GIMME
	University of Minnesota
	http://www.cs.umn.edu/research/GIMME/tclprop.html
	ftp://www.cs.umn.edu/~safonov/TclProp-2.0.tar.gz

Please see TclProp 1.1 README for more information.

This release of TclProp supports formulas and formula propagation
on any traceable object in Tcl. Tcl variables are traceable;
TclProp 2.0 is distributed with extensions to Tcl and Tk, OAT and
TkOAT that support traces on object attributes. Currently Tk
widgets and canvas items are traceable types. See README files
in OAT and TkOAT distributions for more information on these extensions.

The format of the ``TP_formulaca'' call has changed in TclProp 2.0 compared
to version 1.1: extra parameters are used to specify the type
of the object, such as variable, widget, etc. The files ``examples.tcl'',
``wtrace.tcl'' and ``ctrace.tcl'' contain examples on the use of
formulas on widget and canvas item attributes.


TclProp is copyright (c) 1996 by Project GIMME at the University of 
Minnesota.  TclProp 1.1 was written by Sunanda Iyengar under the direction 
of Prof. Joseph A. Konstan at the Department of Computer Science at the 
University of Minnesota.  A paper on TclProp, using TkVP as an example, 
appears in the Proceedings of the Tcl/Tk Workshop 1995 (Usenix Association).
TclProp 2.0 was written by Alex Safonov (safonov@cs.umn.edu).

Permission to use, copy, modify, and distribute this code and its documentation 
for non-commercial and commercial purposes without fee is hereby granted 
provided that this copyright notice and permission notice appears in all 
copies and that the names of the individuals and institutions holding this 
copyright are not used in advertising or publicity pertaining to this software 
without specific, written prior permission.  The copyright holders make no
representations about the suitability of this software and documentation for 
any purpose.  It is provided ``as is'' without express or implied warranty.  
