Download Volume 7A: XView Programming Manual (Definitive Guides to by Dan Heller PDF

By Dan Heller

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Extra resources for Volume 7A: XView Programming Manual (Definitive Guides to the X Window System)

Sample text

It provides a general introduction to basic X terminology, but it does not go into great detail about X. Chapter 2, The XView Programmer’s Model, provides an overview of XView as an object-oriented programming system. The programmer creates and modifies objects that implement the OPEN LOOK interface. This chapter also discusses windows as objects that receive events. It introduces callback functions as the method of registering application-specific event handlers. Chapter 3, Creating XView Applications, begins from the application developer’s point of view and explains the basic elements of an XView application.

This should not be interpreted as a C-language pointer construct. Preface xxxvii Requests for Comments Please write to tell us about any flaws you find in this manual or how you think it could be improved, to help us provide you with the best documentation possible. S. mail address, phone numbers, and e-mail addresses are as follows: O’Reilly and Associates, Inc. com Obtaining the Example Programs The example programs in this book are available electronically in a number of ways: by ftp, ftpmail, bitftp, and uucp.

Passes user input to clients sending network messages known as events, which represent key or button presses, pointer motion, and so forth. Events are generated asynchronously, and events from different devices might be intermingled. The server must de-multiplex the event stream and pass the appropriate events to each client. • Maintains complex data structures, including windows and fonts, so that the server can perform its tasks efficiently. Clients refer to these abstractions by ID numbers.

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