Version 4 of Advanced Tcl

For those programmers who are beyond Beginning Tcl, and would really like to exploit some of the power of the Tcl language and/or the Tk Toolkit, here is a list of pages describing some advanced concepts.

This is a grab bag of new ideas that you might one day find useful. It isn't indexed to help you solve specific problems. Just read through it for ideas. Come back later for a refresher when you want to try them out.

RWT

Tcl Concepts

Building Tcl extensions
Tcl Performance
Regular Expressions
Arrays / Hash Maps
String Processing
Variable Traces - when are they useful?
How can I compile Tcl type scripts into binary code?
Meta Programming
Sockets demonstration using an all-Tcl Sendmail
What kinds of Tcl data types exist?
How do I control a physical device such as a Serial Port in Tcl?
Introspection
Radical Language Modification
What should I be sure to do so my Tcl based programs run cross platform?
How do I manage lock files in a cross platform manner in Tcl?
Will's Guide to Creating Object Commands [L1 ]
Objects in Tcl [L2 ]
Interacting with the internet
Interacting with databases
New Control Structures
Data files in Tcl (simple tricks to parse text files) [L3 ]
Tcl Handles - passing C pointers around in Tcl
How can I add a new option to an existing Tcl command?

Tk Concepts

Tk Performance
Entry Field Processing
Event Processing
Bryan Oakley's "Poor Man's" Drag-N-Drop Example
Geometry Managers
Practical Guide to Choosing Fonts
The Great Big Grab Bag of Grab Tips - for when you want to redirect events from one window to another.
The Option Database is a great way of getting user-configurable and localizable applications [L4 ]
Adding User Data to Widgets the Megawidget Way
Tk image Dos and Don'ts

Interfacing to C

Erm. We need some pages here on this vast and underdocumented topic... - DKF
Pointer clean-up! - PSE
Blessed Tcl_Obj Values, or how to make that struct full of pointers be passable through Tcl while guaranteeing that no loose references can be generated - DKF