About This Guide

This preface includes:

What's in this guide?
Typographical conventions
Technical support

What's in this guide?

This guide describes how to use the QNX Neutrino Composition Manager. The Composition Manager is a hardware independent layer of abstraction that encompasses all aspects of window management, such as window creation, realization, and destruction, as well as content updates inside the Human Machine Interface (HMI).

This table may help you find what you need in this book:

For information about:	See:
Overview of the Composition Manager	Overview
When to use Composition Manager	Why use Composition Manager?
Understanding Composition	Understanding Composition
Using `io-winmgr`	`io-winmgr`
`io-winmgr` configuration settings	Configuring `io-winmgr`
Example `io-winmgr` Configurations	Example `io-winmgr` configuration setups
Working with external APIs	External APIs
Using the OpenKODE window class extension	KD_QNX_window
Using the OpenKODE input class extension	KD_QNX_input
Using the tutorials and demos	Tutorials and Demos
What's new in this release	What's new

Typographical conventions

Throughout this manual, we use certain typographical conventions todistinguish technical terms. In general, the conventions we useconform to those found in IEEE POSIX publications. The following tablesummarizes our conventions:

Reference	Example
Code examples	`if( stream == NULL )`
Command options	`-lR`
Commands	`make`
Environment variables	PATH
File and pathnames	`/dev/null`
Function names	exit()
Keyboard chords	Ctrl-Alt-Delete
Keyboard input	`something you type`
Keyboard keys	Enter
Program output	`login:`
Programming constants	NULL
Programming data types	`unsigned short`
Programming literals	`0xFF`, `"message string"`
Variable names	stdin
User-interface components	Cancel

We use an arrow (→) in directions for accessing menuitems, like this:

You'll find the Other... menu item underPerspective-->Show View.

We use notes, cautions, and warnings to highlight importantmessages:

Notes point out something important or useful.

Cautions tell you about commands or procedures that may haveunwanted or undesirable side effects.

Warnings tell you about commands or procedures that could bedangerous to your files, your hardware, or even yourself.

Note to Windows users

In our documentation, we use a forward slash(/) as a delimiter in all pathnames,including those pointing to Windows files.

We also generally follow POSIX/UNIX filesystem conventions.

Navigation buttons

At the top and bottom of our HTML docs, you'll see some or all of thesebuttons:

Use this button:	To move:
	To the previous part of the document.
	“Up” in the document: In a prose book, this typically takes you to About This Guide. In a reference book, it takes you to the listing of items that start with a given letter. For example, if you're looking at the docs for abs(), this button takes you to the listing of the functions that start with `A`.
	To the keyword index.
	To the next part of the document.

Technical support

To obtain technical support for any QNX product, visit theSupport areaon our website (www.qnx.com).You'll find a wide range of support options, including community forums.