1. An Overview of Tcl and Tk
This chapter introduces Tcl and Tk with a series of scripts illustrating their main features. Although you should be able to start writing simple scripts after reading this chapter, the explanations here are not complete. The purpose of this chapter is to show you the overall structure of Tcl and Tk and the kinds of things they can do, so that when individual features are discussed in detail you’ll be able to see why they are useful. All of the information in this chapter is revisited in more detail in later chapters, and several important aspects, such as the Tcl C interfaces, are not discussed at all in this chapter.
1.1 Getting Started
To invoke Tcl scripts, you must run a Tcl application. If Tcl is installed ...
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