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For 2023 - 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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))

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Tcl/Tk module T243
Using Tcl from C
Exercises, examples and other material relating to training module T243. This topic is presented on public courses Learning to program in Tcl, Tcl Programming, Tcl Programming

The majority of Tcl users will use the Tcl shell itself, or wish or expect or another application in which the language is already embedded. If you want to embed Tcl in an application yourself, this module gives you a brief introduction.

Articles and tips on this subjectupdated
3416Storing Tcl source code encoded, and running via your own C program
Tcl is a language. And Tcl is also a C library. How's that? Tcl originates from a requirement to provide a taioring capability within C programs that could be accessed in a program-like style. And the program-like style that was implemented actually had the full capabilities of a programming language. ...
208Examples - Gadfly, NI Number, and Tcl to C interface
Although the languages that we train on are much more stable (and unchanging) than you might think, people are always coming up with new uses and asking for further examples; many of the examples out there aren't quite right, are too complex, or aren't relevant in the UK. So I find myself writing and ...
Examples from our training material
extend.c   Extending Tcl with C - an extra command written in C
fred   Demo Tcl for mytcl example
fred_extended   Tcl used to demo extension with same command
fullapp.c   C program that invokes a Tcl Interpreter
makefile   Makefile for C applications in this module
mytcl.c   Simplest call from C to Tcl - just a wrapper
secret.c   Run a Tcl script from an encoded file
We will teach Tcl wherever required
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
Embedding a Tcl interpreter in C Program.
Hello Integrated World.
Hiding Tcl source code from the user.
Extending Tcl - adding a command written in C.
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.

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.

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