ULTRIX Worksystem Software Guide to the X Toolkit Widgets: C Language Binding

This document, titled "Guide to the X Toolkit Widgets: C Language Binding," is a manual for the ULTRIX Worksystem Software, Version 2.0, published by Digital Equipment Corporation in 1988.

Purpose: It describes the "Athena" widget set, which application programmers can use to develop X Toolkit-based applications using the C programming language.

Audience: The guide is intended for application programmers who build X Toolkit-based applications with the Athena widget set and X Toolkit Intrinsics. It does not teach XUI application development or C programming concepts.

Key Contents: The manual is structured into four main chapters:

• Athena Widgets and Intrinsics: Provides a general overview of the X Toolkit, its terminology, underlying model, and design principles.
• Using Widgets: Details how to initialize the X Toolkit, create, manage, destroy, map, and modify widgets, and how to use client callback interfaces. It also discusses common arguments (resources) associated with all Athena widgets.
• Athena Widget Set: Offers in-depth descriptions of eleven specific Athena widgets: Command, Label, Text, Scrollbar, Viewport, Box, VPaned, Form, Dialog, List, and Grip widgets, including their resources, functions, and typical usage.
• Creating a Custom Widget: Provides programming hints and guidance for writing custom X Toolkit-based widgets.