Advanced Search
Apple Developer Connection
Member Login Log In | Not a Member? Contact ADC

Previous Book Contents Book Index Next

Inside Macintosh: Processes


Chapter 2 - Process Manager

This chapter describes the Process Manager, the part of the Macintosh Operating System that provides a cooperative multitasking environment. The Process Manager controls access to shared resources and manages the scheduling and execution of applications. The Finder uses the Process Manager to launch your application when the user opens either your application or a document created by your application. This chapter discusses how your application can control its execution and get information--for example, the number of free bytes in the application's heap--about itself or any other open application.

Although earlier versions of system software provide process management, the Process Manager is available to your application only in system software version 7.0 and later. The Process Manager provides a cooperative multitasking environment, similar to the features provided by the MultiFinder option in earlier versions of system software. You can use the Gestalt function to find out if the Process Manager routines are available and to see which features of the Launch function are available.

You should read the chapter "Introduction to Processes and Tasks" in this book for an overview of how the Process Manager schedules applications and loads them into memory. If your application needs to launch other applications, you need to read this chapter for information on the high-level function that lets your application launch other applications and the routines you can use to get information about open applications.

To use this chapter, you need to be familiar with how your application uses memory, as described in the chapter "Introduction to Memory Management" in Inside Macintosh: Memory. You should also be familiar with how your application receives events, as discussed in the chapter "Event Manager" in Inside Macintosh: Macintosh Toolbox Essentials.

This chapter provides a brief description of the Process Manager and then shows how you can


Chapter Contents
About the Process Manager
Using the Process Manager
Getting Information About Other Processes
Launching Other Applications
Launching Desk Accessories
Terminating an Application
Process Manager Reference
Constants
Gestalt Selector and Response Bits
Process-Identification Constants
Launch Options
Data Structures
Process Serial Number
Process Information Record
Launch Parameter Block
Application Parameters Record
Routines
Getting Process Information
Launching Applications and Desk Accessories
Terminating Processes
Summary of the Process Manager
Pascal Summary
Constants
Data Types
Process Serial Number
Process Information Record
Application Parameters Record
Launch Parameter Block
Routines
Getting Process Information
Launching Applications and Desk Accessories
Terminating a Process
C Summary
Constants
Data Types
Process Serial Number
Process Information Record
Application Parameters Record
Launch Parameter Block
Routines
Getting Process Information
Launching Applications and Desk Accessories
Terminating a Process
Assembly-Language Summary
Data Structures
Process Serial Number
Process Information Record
Application Parameters Record
Launch Parameter Block
Trap Macros
Trap Macro Names
Trap Macros Requiring Routine Selectors
Result Codes


Previous Book Contents Book Index Next

© Apple Computer, Inc.
17 JUN 1996

Get information on Apple products.
Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Copyright © 2004 Apple Computer, Inc.
All rights reserved. | Terms of use | Privacy Notice