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This week, we're updating our course layouts and descriptions. Presentation and materials always gently change over time, but just occasionally there's a need to make a step change to clear out some of the old and roll in the new. That's now happening - but over a long and complex site it's not instant and you'll see sections of the site changing up to and including 19th September.

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Tcl/Tk module T221
Menus
Exercises, examples and other material relating to training module T221. This topic is presented on public course Tcl/Tk

In Tcl/Tk, you'll often want pull-down menu selection. Briefly, you'll use a menu bar which comprises a number of menus. Each menu will comprise a number of menu items, some of which may be submenus. And each menu item will have an action associated with it. In this module, you learn the mechanisms used to create menus, and you learn programming techniques to allow you to create a flexible, maintainable menu system too.


Articles and tips on this subjectupdated
1475Tcl/Tk - updating your display while tasks are running
Let me make two statements: 1. When you are popping up a new window from your program, the very last thing you want to see happen is for the window to gradually appear, with bits of it being resized as it comes on the screen - not only is such an operation irritating on the eye, but also it's burning ...
2007-12-16
 
Examples from our training material
idletasks   use of update idle tasks to update the display
mb1   First menu button
mb2   Various options for menu buttons
mb3   Menu bar system based on array or lists
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
Simple pulldown menu.
Options for pulldown menus.
Menu bars.
Enhancements.
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 700 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.


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