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# 1. Preface

## 1.1. About The Vortex Streams API Reference Guide

The Vortex Streams API Reference Guide provides a detailed overview of the Vortex OpenSplice Streams API. The Streams API is an add-on, built on the Data Centric Public Subscribe (DCPS) paradigm that is implemented by Vortex OpenSplice and standardized in the OMG’s Data Distribution Service Specification.

This Guide complements the Vortex OpenSplice C++ Reference Guide.

## 1.2. Intended Audience

The Streams API Reference Guide is intended to be used by C++ programmers who are using the OpenSplice Streams API to develop applications. While not strictly required, it is assumed that the reader has a basic understanding of the DDS C++ API as detailed in the Vortex OpenSplice C++ Reference Guide.

## 1.3. Organisation

This Guide is organised in two parts.

The Introduction provides some background information about the features of the Streams API and how to use them. It also gives a broad overview of all entities and relations between entities in the Streams API.

The API Reference provides detailed descriptions of all of the classes and operations of the Streams API.

## 1.4. Conventions

The icons shown below are used in ADLINK product documentation to help readers to quickly identify information relevant to their specific use of Vortex OpenSplice.

> Icon | Meaning
> --- | ---
> | Item of special significance or where caution needs to be taken.
> | Item contains helpful hint or special information.
> | Information applies to Windows (e.g. XP, 2003, Windows 7) only.
> | Information applies to Unix-based systems (e.g. Solaris) only.
> | Information applies to Linux-based systems (e.g. Ubuntu) only.
> | C language specific.
> | C++ language specific.
> | C# language specific.
> | Java language specific.

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