Tcl/Tk - Introduction to Tk

Tcl/Tk module T216

Introduction to Tk

Exercises, examples and other material relating to training module T216. This topic is presented on public course Tcl/Tk

Would you like to access your Tcl script through a Graphic User Interface? The Tk GUI, which is distributed with most releases of Tcl, provides such a capability. In this module we introduce you to Tk and see a couple of short examples of Tk in use.

Related technical and longer articles

Graphic User Interfaces (GUIs)

Articles and tips on this subject		updated
2040	Error: Cant read xxxxx: no such variable (in Tcl Tk) If you set a Tcl (Tcl/Tk) variable within a proc, or within the callback command of a widget, that variable does not exist at run time until you have run the proc or callback procedure, or until you have initialised the variable in some other way. Let's see a Tk example. I have created a window with ...	2009-02-15
595	Add a friendly front end with Tk With a Tk Graphic User Interface, you can add a friendly look and feel to an application running on your workstation if it's written in Tcl (Tcl/Tk), Perl (Perl/Tk) or Python (TkInter). Whichever language you build your GUI on to, you'll want to remember 1. Create your components (known as widgets) ...	2006-06-09

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Examples from our training material

tk_accesscount	Tcl/Tk - Access Log File counter!
tk_h2	Report Date Information on a widget
tk_hello	Tcl/Tk - Report Date Information
udq	Widgets, Geometry Managers and Events

Background information

This module is available under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Hello Tcl/Tk World.
Tcl/Tk supported platforms.
Sourcing Tcl/Tk.
Our sample program.
A real application.
Feedback via the Tk window.
Widgets as commands.
A GUI front end to a data file.
The main program.
The setup proc.
The scanner proc.
The complete program.

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