CQG API 4.0 - Revised
Getting Started
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This help document is the essential reference for developers who use CQG API functionality, and it is the exclusive source of CQG API product documentation.

It shows how to work with CQG API and helps you easily find the information you need.

The CQG API component help is a tool that you can use to display, search, and filter information based on your development needs.

 

The help is divided into the following parts:

Introduction

    Contains basic information about CQG API.

Overview

    Enlists the classes and enumerations available in CQG API.

Requirements

    System and subscription requirements needed for CQG API development and usage.

Change Log

    Enlists product changes in reverse chronological order.

Quick-Start Guide

    Contains step-by-step guides to help you get started and do common CQG API tasks.

Usage Diagram

    Illustrates the CQG API usage organization from a user application.

What's New?

    Lists the new concepts added to CQG API in the current version.

Common Concepts

    Provides common programming concepts for CQG API.

Interfaces

    Represents the interfaces available in CQG API.

Collections

    Represents the collections available in CQG API.

Structures

    Represents the user-defined data types (structures) used in CQG API.

Enumerations

    Represents the enumerations used in CQG API.

Samples Catalog

    Describes the downloadable samples in a few common programming languages that cover many CQG API functionalities.

FAQ

    Frequently asked questions by CQG API users.

Glossary

    Describes financial terms for the non-trader.

 

Do you want to start working with CQG API right away? Refer to the Example section of CQGCEL.