ULTRIX Worksystem Software Reference Pages, Sections 3Dwt, 3X11, and 3Xt

This document is a reference manual titled "ULTRIX Worksystem Software Reference Pages, Sections 3Dwt, 3X11, and 3Xt".

It provides detailed reference information for three categories of programming interfaces:

• XUI Toolkit functions (Section 3Dwt)
• XUI Toolkit intrinsics (Section 3Xt)
• Xlib functions (Section 3X11)

Each reference page in the manual follows a consistent format, typically including:

• Name: The topic name and a brief description.
• Syntax: Function definitions, using bold for literal characters and italics for variable information.
• Arguments: Descriptions of parameters, indicating whether they are passed to or returned by the function.
• Description: Detailed explanation of the function's usage, effects, and any relevant companion guides.
• Diagnostics: Information on potential diagnostic and error messages.
• Restrictions: Known limitations for the function.
• Files: A list of related files used or created.
• See Also: Cross-references to related functions and other relevant documents.

The manual is intended for ULTRIX Worksystem Software, Version 2.2, running on ULTRIX-32, Version 3.1 or higher. It acknowledges copyrighted material from AT&T, Sun MicroSystems, Inc., and Massachusetts Institute of Technology, indicating its foundation in and compatibility with UNIX and the X Window System.