pNewly updated with over 150 pages of material on the latest Tcl extensions, iTclTk A Developer's Guiide is a unique practical tutorial for professional programmers and beginners alike. Starting with a clear picture of the basics, TclTk covers the variety of tools in this Swiss army knife of programming languages, giving you the ability to enhance your programs, extend your application's capabilities, and become a more effective programmer. p pThis updated edition covers all of the new features of version 8.6, including object-oriented programming and the creation of megawidgets, existing data structure implementations, themed widgets and virtual events. Extensive code snippets and online tutorials in various languages will give you a firm grasp on how to use the TclTk libraries and interpreters and, most importantly, on what constitutes an effective strategy for using TclTk. p