VTCL, has anyone ever used it?

[IllegalOperation38]

As I am trying to learn TCL/TK, I have found VTCL seems to be the most up to date GUI of the few I have played with so far, except it comes with zero documentation. (SpecTcl seems primitive?)

I cannot seem for the world of me how to set a variable for my program outside of a procedure. I want to set a variable and refer to it many times via the global scope with the rest of my procs. If I try to edit my source code directly and add the variable, the program wont run. (Example


#!/bin/sh
#The next line starts wish
exec wish "$0" "$@"

set vsftpd "/etc/rc.d/init.d/vsftpd


This will not work.


VTCL offers 2 procedures already, an init and a main. Can anyone kindly tell me how I can add my variable from within VTCL so that I may call it from a global scope (without putting it inside of a procedure itself?

 

[IllegalOperation38]

I finally solved this, in case anyone else ever has the same question.

Options/bindings/main

You can add whatever command in there below already whats existing and it will be on a global scope (and get evaluated before anything else)

 

[johnlopez2000]

you may alternately want to look into using namespaces to create global access to variable scope via an "object" path to the variable, ie:

set ::myGlobalSpace::myvar 1

...
#~later in the code

set x $::myGlobalSpace::myvar

#~where x is local in scope to the current proc

you will have to create the namespace myGlobalSpace in your program via the namespace command. A little reading will help.

hope this helps

John Lopez
Enterprise PDM Architect
lopez.john@goodrich.com