This manual describes how to develop online help for Common Desktop Environment application software. It covers how to create help topics and how to integrate online help into a Motif™ application. The audience for this book includes: Authors who design, create, and view online help information Developers who want to create software applications that provide a fully integrated help facility This book has four parts. Part 1 describes the collaborative role that authors and developers undertake to design application help. Part 2 provides information for authors organizing and writing online help. Part 3 describes the Help System application programmer's toolkit. Part 4 contains information for both authors and programmers about preparing online help for different language environments. This book includes these chapters: Part 1— Introduction , provides an overview of authors' and developers' collaborative role in producing online help. Part 2— The Author's Job , describes the components that make up a help volume. , introduces the Help System markup language and gives examples of elements used to format different types of information. It describes how to include graphics and create hyperlinks. , describes how to process a marked-up file (or files) to generate a single run-time file for online viewing. The Guide to the DocBook DTD lists in alphabetical order the DocBook markup language elements, and describes their use. , provides a list of characters and associated entity names that can be used to insert special characters into help topic text. , summarizes how to process and view a help volume by entering commands in a terminal emulator window. , describes the DocBook DTD and how to use it to create fully compliant Standard Generalized Markup Language (SGML) help files. Part 3— The Programmer's Job , introduces the Help Dialog widgets and explains how to use them. , explains how an application provides entry points to access different types of help. ,shows how an application can use a callback structure to handle hyperlink events. , describes how an application can provide a help module that tells users how to use the Help System. , covers what to include in an installation package to supply online help with an application. Part 4— Internationalization , identifies language-dependent files used by the Help System. Glossary is a list of words and phrases found in this book and their definitions. Related Common Desktop Environment books that you may find helpful are: Advanced User's and System Administrator's Guide Internationalization Programmer's Guide Style Guide and Certification Checklist User's Guide Guide to the DocBook DTD For a technical description of Standard Generalized Markup Language (SGML), refer to: The SGML Handbook by Charles F. Goldfarb, Oxford University Press (ISBN 0-19-853737-9). The following table describes the type changes and symbols used in this book. Typeface or SymbolMeaningExample AaBbCc123 The names of commands, files, and directories; on-screen computer output Edit your .login file.Use ls -a to list all files.system% You have mail. AaBbCc123 Command-line placeholder:replace with a real name or value To delete a file, type rm filename. AaBbCc123 Book titles, new words or terms, or words to be emphasized Read Chapter 6 in the User's Guide. These are called class options.You must be root to do this.