Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
Python, Lua, Tcl, C and C++ training - public course schedule [here]
Private courses on your site - see [here]
Please ask about maintenance training for Perl, PHP, Java, Ruby, MySQL and Linux / Tomcat systems
 
Tcl + Tk (Wish) - an introduction and revision example

Whenever I teach Tcl with Tk, I'm delighted to be reminded how easy it is to put together a graphic user interface (GUI) with Tcl. They may not be the world's prettiest, but they're quick, straightforward and functional. And so it was on the final day of our Tcl Programming course last week, when I did just half an hour on Tk and wish.

* At the start of your code, define procedures that are to be performed when buttons are pressed or data is entered in some other way

* Define the components of your GUI, including a note of which function each is linked to

* Define the layout - how the components are drawn in relationship to each other and to the window in which they appear

... and that can be about it!

The example shown here is three concurrent runs of a GUI with a simple increment / decrement counter that's also changing the colour of the targeted label on the interface. A simple but effective demonstration.

Full source code is [here].

(written 2013-11-15, updated 2013-11-16)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
T216 - Tcl/Tk - Introduction to Tk
  [4460] Using Object Oriented Tcl and the Tk toolkit together - real life example - (2015-03-12)
  [2040] Error: Cant read xxxxx: no such variable (in Tcl Tk) - (2009-02-14)
  [595] Add a friendly front end with Tk - (2006-02-08)

T248 - Tcl/Tk - A Review of Tcl and Tk Basics
  [1469] Curley brackets v double quotes - Tcl, Tk, Expect - (2007-12-12)
  [1181] Good Programming practise - where to initialise variables - (2007-05-09)
  [1174] Installing Tcl and Expect on Solaris 10 - a checklist - (2007-05-02)
  [1092] Tcl training - often for a larger group - (2007-02-24)


Back to
Exception handling in Tcl
Previous and next
or
Horse's mouth home
Forward to
Lists in Tcl - fundamentals in a commented source code example
Some other Articles
Python functions - an introduction to how they work
Handling JSON in Python (and a csv, marshall and pickle comparison)
If elif elif elif - multiway selection in Python
Lists in Tcl - fundamentals in a commented source code example
Tcl + Tk (Wish) - an introduction and revision example
Exception handling in Tcl
Writing the perfect program in Tcl?
Regular Expression Substitution - Tcl
With the Shpigs and Donkeys
A weekend away - Four in a Bed returns to Happy Donkey Hill
4754 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2017: 404 The Spa • Melksham, Wiltshire • United Kingdom • SN12 6QL
PH: 01144 1225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/4208_Tcl ... ample.html • PAGE BUILT: Sat May 27 16:49:10 2017 • BUILD SYSTEM: WomanWithCat