Legacy Document
Important: The information in this document is obsolete and should not be used for new development.
Important: The information in this document is obsolete and should not be used for new development.
Chapter 6 - Component Manager
This chapter describes how you can use the Component Manager to allow your application to find and utilize various software objects (components) at run time. It also discusses how you can create your own components and how you can use the Component Manager to help manage your components. You should read this chapter if you are developing an application that uses components or if you plan to develop your own components.The rest of this chapter
Several of the sections in this chapter are divided into two main topics: one describes how applications can use components, and one describes how to create your own components. If you are developing an application that uses components, you should focus on the material that describes how to use existing components--you do not need to read the material that describes how to create a component. If you are developing a component, however, you should be familiar with all the information in this chapter.
- contains a general introduction to components and the features provided by the Component Manager
- discusses how to use the facilities of the Component Manager to call components
- describes how to create a component
For information on a specific component, see the documentation supplied with that component.
Chapter Contents
- Introduction to Components
- About the Component Manager
- Using the Component Manager
- Opening Connections to Components
- Opening a Connection to a Default Component
- Finding a Specific Component
- Opening a Connection to a Specific Component
- Getting Information About a Component
- Using a Component
- Closing a Connection to a Component
- Creating Components
- The Structure of a Component
- Handling Requests for Service
- Responding to the Open Request
- Responding to the Close Request
- Responding to the Can Do Request
- Responding to the Version Request
- Responding to the Register Request
- Responding to the Unregister Request
- Responding to the Target Request
- Responding to Component-Specific Requests
- Reporting an Error Code
- Defining a Component's Interfaces
- Managing Components
- Registering a Component
- Creating a Component Resource
- Establishing and Managing Connections
- Component Manager Reference
- Data Structures for Applications
- The Component Description Record
- Component Identifiers and Component Instances
- Routines for Applications
- Finding Components
- Opening and Closing Components
- Getting Information About Components
- Retrieving Component Errors
- Data Structures for Components
- The Component Description Record
- The Component Parameters Record
- Routines for Components
- Registering Components
- Dispatching to Component Routines
- Managing Component Connections
- Setting Component Errors
- Working With Component Reference Constants
- Accessing a Component's Resource File
- Calling Other Components
- Capturing Components
- Targeting a Component Instance
- Changing the Default Search Order
- Application-Defined Routine
- Resources
- The Component Resource
- Summary of the Component Manager
- Pascal Summary
- Constants
- Data Types
- Routines for Applications
- Routines for Components
- Application-Defined Routine
- C Summary
- Constants
- Data Structures
- Routines for Applications
- Routines for Components
- Application-Defined Routine
- Assembly-Language Summary
- Trap Macros
- Result Codes