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Tcl/Tk module T222
Resources
Exercises, examples and other material relating to training module T222. This topic is presented on public course Tcl/Tk

Even a widget as simple as a label has some 20 different settings (also known as properties) that can affect its look and feel. Typically, the author of a Tk program will alter a minimum of these, as all resources have a default or "fallback" value. Users can override fallbacks through general setting files, and through files that include settings for specific applications. Programmers can give users the option of loading sets of resources from file as well. Resource setting is useful for applications which may be used by people with poor sight or who are colour blind, and also for giving a consistent look and feel to a group of related windows or applications.


Articles and tips on this subjectupdated
1474Using Tcl/Tk resource files for flexible applications
If you're looking to write a Tcl/Tk application that can be flexibly configured, don't forget to use named resources. Here are two displays from the same program: So - how did I get the difference in colour and text labels? 1. I drew the buttons WITHOUT ANY TEXT AT ALL, and I did NOT specify a background ...
2007-12-18
 
Examples from our training material
bright   Resource file - answer to exercise
lookandfeel   Demonstration file of Tk resources
resource3   Resources file for tk_res3
skeleton   Template for resource exercise
tk_res3   Use of two files of Tk resources.
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 [here].
Topics covered in this module
Resource patterns.
The resource hierarchy.
Loading, adding and accessing the database.
User-defined buttons and menus.
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,Ruby, Lua, 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.

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