This book describes the X Network Protocol which underlies all software for Version 11 of the X Window System. It includes protocol clarifi-cations of X11 Release 5, as well as the most recent version of the ICCCM and the Logical Font Conventions Manual. It can be used with any release of X.

A complete programmer's reference for the Motif toolkit. This book provides reference pages for the Motif functions and macros, the Motif and Xt widget classes, the Mrm functions, the Motif clients, and the IUL file format, data types, and functions. Reference material has been expanded and covers Motif 1.2.

It contains over 600 megabytes of X11 source code and binaries stored in ISO9660 and RockRidge formats. This will allow several types of UNIX workstations to mount the CD-ROM as a filesystem, browse through the source code, and install pre-built software.

Volume 4 is a complete guide to programming with the X Toolkit Intrinsics, the library of C language routines that facilitates the design of user interfaces with reusable components called widgets. It provides concepts and examples that show how to use the various X Toolkit routines. The first few chapters are devoted to using widgets; the remainder of the book covers the more complex task of writing new widgets. Uses the Motif 1.2 widget set in examples and covers X11 Release 5. Volume 4 includes: Introduction to the X Window System. Building applications with widgets. Constructing a bitmap editor with widgets. An overview of each widget in the widget set. Basic widget methods./li> Events, translations, and accelerators. Event handlers, timeouts, and work procedures. Resource management and type conversion. Selections and window manager interaction. Geometry management. Menus, gadgets, and cascaded pop-ups. Miscellaneous techniques. Comparison of Athena, OSF/Motif, and AT&T OPEN LOOK widgets. This book is designed to be used with Volume 5, X Toolkit Intrinsics Reference Manual, which provides reference pages for each of the Xt functions, the widget classes defined by Xt, and the Athena widget set.