June 2003
Intermediate to advanced
960 pages
20h 55m
English
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Chapter 46. A User Interface to Bindings
This chapter presents a user interface to view and edit bindings.
A good way to learn about how a widget works is to examine the bindings that are defined for it. This chapter presents a user interface that lets you browse and change bindings for a widget or a class of widgets.
The interface uses a pair of listboxes to display the events and their associated commands. An entry widget is used to enter the name of a widget or a class. There are a few command buttons that let the user add a new binding, edit an existing binding, save the bindings to a file, and dismiss the dialog. Here is what the display looks like:
Example 46-1. A user interface to widget bindings
proc Bind_Interface { w } { # Our state global ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.