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Tcl/Tk module T223
Textish Widgets
Exercises, examples and other material relating to training module T223. This topic is presented on public course Tcl/Tk

The Entry, text and listbox widgets provide a user data entry and edit capability which is highly configurable by the programmer - you can write a complete editor using a text widget if you like. ĘThis module covers the three text-ish widgets in detail.


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
 
596The magic of -textvariable
If you're writing a GUI based application, you'll need to hold pertinent information in variables in your program, AND display that pertinent information to the user. The obvious way of doing this is to provide code that updates the display as required - in the case of Tcl/Tk you might write    .wname ...
2006-06-05
 
Examples from our training material
form   Form using Tk entry widget
form2   Second form using Tk entry widget.
lbex   Sample answer - listbox to choose types of fruit.
listbox1   Tk listbox example
listbox2   Tk second listbox example (code snippet only).
teditor   Simple text editor in Tk
tkt   A Tktable is a tabulator widget in Tcl/Tk
tktext   a Tk text widget used as a vehicle for custom text editing
tktx2   Marks and tags and editing in a Tk text widget
tktxt   Tk - Text Widget - first easy example
Pictures
On site training in Tk
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 listbox widget.
Scrolling a listbox.
The entry widget.
The text widget.
Text indices.
Text marks and tags.
Index arithmetic.
Editing facilities.
Other operations on text widgets.
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.

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