18. A Tour of the Tk Widgets
This chapter introduces the classic widget classes implemented by Tk, which have been around since nearly the beginning of Tcl. They provide a cross-platform means to create user interfaces for your scripts. In addition, these classic widgets provide an easy way to add a user interface to an existing application, whether written in Tcl or not. With the ability to embed a Tcl interpreter within applications, you can extend your applications with a graphical user interface. Or you can use Tcl’s commands to drive a command-line application and use Tk widgets to introduce a user interface.
In addition to the classic Tk widgets, recent years have seen the development of a set of themed widgets. Themes aim to separate ...
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