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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

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Tcl/Tk module T220
Frames and Other Topics
Exercises, examples and other material relating to training module T220. This topic is presented on public courses Learning to program in Tcl, Tcl/Tk, Tcl Programming

The default geometry managers (pack, grid, gridbag and place) become powerful tools when you nest frames, or create new top level frames to turn your application multi-window. This module also covers some further widgets such as scales and message boxes.

Articles and tips on this subjectupdated
4459Managing the window size (and layout) in Tcl/Tk
Complex window layouts are comprised in a series of simple window layouts nested within each other - as an example I wrote today on our Tcl/Tk course. You can see a capture of this display in with this article. The buttons on the left are in a frame of their own, and the graphic area ("Canvas") across ...
1471Cliff Lift simulator- Lynton to Lynmouth - in Tcl/Tk
In Tk, you can use the variable option to a slider and the textvariable option to a label or button (or some other widgets) to 'project' the value of a variable onto the display - either changing the text on a button, or moving a slider automatically when some value changes otherwise within the code. Cliff ...
1335Expanding a grid - Tcl/Tk
Have you ever tried to fill or expand a grid in Tcl/Tk to fill the available space left by wider or taller widgets to the die, or when the window expands, and got results like those I have posted here? Disappointing results, aren't they? And I appear to have done all that I should in the source too: label ...
787Tk - laying out your GUI with frames, pack and grid
Using Tk (in Tcl or in Perl), you create a number of components that you want to display as part of your GUI (Graphic User Interface) using commands such as button, label and canvas. These components are known as widgets. Once you've created your widgets, you need to use a geometry manager to tell ...
Examples from our training material
clifflift   Tcl/Tk - Scales linked like a cliff lift
linedisplay   Display with frames, canvas, window manager
sltvtl   Slider, text variable and pop up
tk_frames   Nested frames - first completed example
tk_fvar_1   Tk frames using variables to allow extra flexibility
tk_fvar_2   Tk frames - flexibility of layout
tk_ru2   Tcl/Tk - Are you sure window using a message widget
tk_rusure   Tk - popup box to ask "are you sure" written using Tk basics
tk_sc2   Tk scales with variable feedback
tk_scale   Tcl/Tk - First Scales
tls   Scrolling a canvas (canvas, scrollbar, toplevel, frame, grid)
willie   Check buttons - defaulting to be selected or not
Designing your GUI - 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 [here].
Topics covered in this module
Nesting frames.
The outer frame.
The first inner frame.
The second inner frame.
Completed application.
Top-level widgets.
Labels and Messages.
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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