Tcl/Tk - First Widgets, Geometry and Events

First Widgets, Geometry and Events - Tcl/Tk module T217

Tk programming is all about widgets, geometry managers and events. This module introduces you to each of these concepts, then examines one particular widget type, one particular geometry manager, and one particular type of event to a level where you can write your first useful GUI under Tk.

This topic is presented on public course Tcl/Tk

Examples from our training material

colmat	Sample answer 1 - coloured labels and layout question
colmat2	Sample answer 3 in development
colmat3	Sample answer 3 - Completed layout question
deferintk	deferred execution can cause a problem in Tk
tk_b1	Tcl/Tk - button test 1
tk_b2	Tcl/Tk - button test 2
tk_b3	Tk - attributes of a button
tk_b4	Tcl/Tk - button states
tk_event	Tcl/Tk - Event demo
tk_wm	Tcl/Tk - First Frame

Opentalk forum discussions related to this topic

Tk specifying commands on a widget
Call back procedures and the TK Button Command
Button with changing bitmap

Pictures

Learning Tcl/Tk for a custom GUI application

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

The button widget.
Resources.
State.
Design notes.
The pack geometry manager.
Changing how pack works.
More flexible packing.
Frames.
Frame hierarchy.
The parent frame.
The window manager command.
Button presses and other events.
Summary.

Complete learning

If you are looking for a complete course and not just a information on a single subject, visit our Listing and schedule page.

Well House Consultants specialise in training courses in Tcl/Tk, Expect,Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.

We have a technical library of over 600 books on the subjects on which we teach. These books are available for reference at our training centre. Also available is the Opentalk Forum for discussion of technical questions.