Python Programming On Win32

Widgets

Core widgets

Tkinter implements a fairly small set of core widgets, from which other widgets or complete applications can be based. Table 20.1 lists these core widgets with a short description of how they are used.

Table 20.1. Core Tkinter Widgets

Widget Name	Description
Toplevel	Toplevel widgets are special in that they have no master widget and don’t support any of the geometry-management methods (as discussed later). All other widgets are directly or indirectly associated with a Toplevel widget.
Frame	Used as a container widget for other child widgets. For instance, the tkDemo example consists of a number of frames within frames within frames to achieve its particular layout.
Label	Displays text or images.
Message	Displays text with automatic line-break and justification capabilities.
Text	Displays text with advanced formatting, editing, and highly interactive capabilities.
Canvas	Displays graphical items from a display list, with highly interactive capabilities.
Button, Checkbox, Entry, Scale, Radiobutton, List box, Scrollbar	Standard simple entry widgets, also known as the control widgets.
Menu, Menubutton	Widgets for implementing and responding to menus.

Quite a few of these widgets are demonstrated in the tkBrowser sample, and every one gets an exercise in the tkDemo sample, so you are encouraged to experiment with these samples to get a feel for the capabilities of each widget. Of these widgets, we will discuss two of the most popular and powerful ...