Installation guide

UWS and DIGITAL UNIX system programming environments. However,
the DECwindows XUI interface available on ULTRIX systems is different
from the DIGITAL UNIX interface. The following sections discuss these
differences.
The DECwindows Motif programming environment provides libraries and
tools for developing graphical applications for workstations. This graphical
programming environment includes:
• Xlib
This is the DIGITAL implementation of the Massachusetts Institute of
Technology’s X Window System, Version 11, Release 5, library provides
low-level routines for performing basic windowing functions such as
display; graphics; event handling; and text, font, and cursor
manipulation. DIGITAL has extended Xlib to provide routines for the
Display PostScript System. This extension allows applications to
display images by calling functions that send PostScript code.
For more information on programming with Xlib, see the book X
Window System, published by Digital Press. The Display PostScript
System documents are contained in the /usr/share/doclib directory.
• X Toolkit (also called the Intrinsics)
A library of routines that creates and manipulates interface objects
called widgets.
For more information on programming with the X Toolkit, see the book
X Window System, published by Digital Press.
• Motif Toolkit
A collection of widgets and gadgets for building Motif applications;
similar to the XUI Toolkit for building XUI applications on ULTRIX
systems. Includes the User Interface Language (UIL), a presentation
description language that simplifies the creation and customization of
an applications’s user interface. DIGITAL extends the Motif Toolkit by
providing additional widgets for help, color mixing, printing, compound
strings, and structural visual navigation.
For more information about programming with the Motif Toolkit, see
the OSF/Motif Programmer’s Guide manual and the DECwindows
Motif Guide to Application Programming manual. For more information
about DIGITAL extensions to the Motif Toolkit, see the DECwindows
Extensions to Motif manual.
Creating graphical applications for the DECwindows Motif environment is
similar to creating applications for the XUI environment. Programmers
who are experienced in developing XUI applications or who are porting
existing XUI applications to Motif should note the following differences:
6–4 Overview of the DIGITAL UNIX Programming Environment