The frame widget maker is archetypal in the sense that what you can do with it you can do with other kinds of widget makers as well. Below in Chapter 15, you see will that the section titles list all the possible widget types. Here is the way that actions are executed. For example, here is a command to make a frame with desired size 10 x 10 centimeters.
All widgets have a -width option.
These options require varying units of measurement as described above in Size . The widget command created with this widget is .frame . Often, frames exist to organize their slaves into something that can be properly packed in a larger widget. You may not see such a frame. When you see a frame, it is because of a border around it or because some of it is showing with a distinctive color.