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Cocoa is an object-oriented application environment designed for developing Mac OS X native applications. The Cocoa frameworks support rapid development and high productivity. Cocoa provides developers starting new Mac OS X projects the fastest way to full-featured implementations. Applications from other platforms can also be brought to Mac OS X quickly using Cocoa.

A guided introduction and learning path for developers new to Cocoa.   Essential information for developers using Objective-C.   Objective-C API references organized by framework.
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Boinx Starts with Sample Code: FotoMagico Is a Powerful Digital Slideshow (HTML)
Starting with Apple sample code, tools and technologies, Boinx wrote FotoMagico in a matter of months.
General, Graphics & Imaging Articles 2007-12-11
Leopard Technology Series for Developers: Graphics & Media Overview (HTML)
Describes Leopard's graphics and media capabilities.
Graphics & Imaging Articles 2007-12-11
Leopard Technology Series for Developers: Objective-C 2.0 Overview (HTML)
Describes features and capabilities introduced in Objective-C 2.0.
Objective-C Language, Tools Articles 2007-12-11
Checkout Lets You 'Get a Mac, Start a Store': Madebysofa Does It with Python and Cocoa (HTML)
Success story on how Mac-only Checkout was built using Python and Cocoa.
General, Scripting & Automation Articles 2007-07-10
Leopard Technology Series for Developers: Broadcast Your Application's Content with iChat Theater (HTML)
Leopard Overview article on using the Instant Messaging framework.
Apple Applications Articles 2007-05-22
Using the Web Services Core Framework and CFNetwork to Access Remote SOAP Services (HTML)
Learn how to access remote SOAP-based web services that require HTTP Basic or Digest authentication.
Internet & Web, Networking Articles 2007-03-07
Kerberos: Highly Secure Single Sign On Authentication in Mac OS X (HTML)
Learn how you can take advantage of Kerberos in your application.
Security Articles 2007-02-05
Leopard Technology Series for Developers: Leopard Developer Application Technologies Overview (HTML)
Learn how Leopard will help you create powerful and innovative features for your users.
Design Guidelines Articles 2006-12-07
Leopard Technology Series for Developers: Leopard Developer Tools Overview (HTML)
Learn how Leopard developer tools make it easier than ever to create exciting applications.
Tools Articles 2006-11-15
Going Universal: Audio Developers Catch the Wave (HTML)
Learn how audio developers who built universal binaries of their applications are reaping the benefits.
Audio, Porting Articles 2006-07-18
Using the QTKit Framework (HTML)
Learn how the QuickTime Kit works and how to use it in your application.
QuickTime Articles 2006-06-19
Developing Games on Mac OS X Using Third-Party Game Engines (HTML)
Create your own game using the powerful game engines that run on Mac OS X.
Games Articles 2006-06-05
Taking Advantage of PDF Kit in Your Cocoa Application (HTML)
Learn to handle PDF documents in your Cocoa application without writing a lot of custom code.
Graphics & Imaging Articles 2006-02-20
Working with Quartz Composer (HTML)
Learn to build a sample composition without having to write code.
Graphics & Imaging Articles 2006-02-13
The Sound of Opportunity Knocking: The Audio Units Community Takes Off (HTML)
Learn how one developer created a successful business using audio units.
Audio Articles 2005-10-31
Designing Network-Friendly Applications (HTML)
Learn to make your application management-aware and reliably accessible on a network.
Design Guidelines Articles 2005-10-24
Taking Advantage of the Accelerate Framework (HTML)
Learn how your application can run on PowerPC- or Intel-based Macs without processor-specific customization.
Performance Articles 2005-10-03
Scoping Your Transition Projects (HTML)
Learn how to transition to Intel-based Macs.
Intel-Based Macs, Porting Articles 2005-09-27
Adopting Universal Binaries on Mac OS X (HTML)
Learn about universal binaries and how to get your applications ready for Intel-based Macs.
Intel-Based Macs, Porting Articles 2005-08-26
Using PyObjC for Developing Cocoa Applications with Python (HTML)
Learn how to build a sample Cocoa app using the Cocoa-Python bridge PyOjbC.
Scripting & Automation, Tools Articles 2005-08-15
Simplifying Data Handling with Uniform Type Identifiers (HTML)
Learn to use UTIs to take advantage of key Mac OS X technologies in your application.
Data Management, File Management, Interapplication Communication Articles 2005-07-12
Porting Multithreaded Applications from Win32 to Mac OS X (HTML)
Learn how Mac OS X handles multithreading, before porting your Win32 application.
Performance, Porting, Process Management Articles 2005-06-20
Integrating Sync Services into Your Application (HTML)
Learn how to sync any kind of data in your application using Sync Services.
Apple Applications, Internet & Web, Syncing Articles 2005-06-06
Tiger Developer Overview Series: Developing with Core Data (HTML)
Learn to use Core Data to define your application's data model graphically.
Data Management, Design Guidelines Articles 2005-04-04
Tiger Developer Overview Series: Developing with Core Image (HTML)
Learn how Core Image can help you take your graphics development to the next level.
Graphics & Imaging Articles 2005-03-09
Turn up the Volume with Audio Units (HTML)
Learn to build a sample volume unit, test it, and integrate it into GarageBand.
Audio Articles 2005-01-31
Using the .Mac SDK (HTML)
Learn how the .Mac SDK can enhance your application with powerful web-integration features.
Interapplication Communication, Internet & Web Articles 2005-01-25
Tiger Developer Overview Series: Developing Dashboard Widgets (HTML)
Learn how to create powerful mini-applications quickly and easily.
Apple Applications Articles 2004-12-07
Tiger Develop Overview Series: Working with Spotlight (HTML)
Learn to make the most of Spotlight's powerful search technologies within your own applications.
File Management Articles 2004-10-07
Cocoa and AppleScript: From Top to Bottom (HTML)
Learn how to activate AppleScript in your application so that users can create scripts.
Scripting & Automation Articles 2004-08-23
Universal Access: Computers That Everyone Can Use (HTML)
Learn how to make your applications usable by everyone, including those with disabilities.
Accessibility Articles 2004-08-02
Binding your Preferences in Cocoa (HTML)
Learn to use bindings by creating a simple app.
Design Guidelines, User Experience Articles 2004-04-26
Using the Web Kit for Application Registration (HTML)
Learn how to use the Web Kit to handle your application's online registration.
User Experience Articles 2004-03-09
Maximizing Mac OS X Application Performance (HTML)
Learn how to achieve better performance on Mac OS X.
Performance Articles 2003-06-23
Xcode Project Management Guide (HTML) (PDF)
Provides practical descriptions of the major development tasks developers perform with Xcode.
Tools Guides 2008-09-09
Xcode Workspace Guide (HTML) (PDF)
Provides an overview of the Xcode workspace, and shows how to use its components and features.
Tools Guides 2008-09-09
File System Overview (HTML) (PDF)
Conceptual information and guidelines describing the structure and usage of the Mac OS X file system.
File Management Guides 2008-07-11
The Objective-C 2.0 Programming Language (HTML) (PDF)
Introduces object-oriented programming and describes the main programming language used for Cocoa development.
Objective-C Language, Tools Guides 2008-07-08
Debugging with GDB (HTML)
Open-source document that explains how to use GDB to debug programs.
Tools Guides 2008-06-19
Apple Human Interface Guidelines (HTML) (PDF)
Introduces the Mac OS X user experience and explains how to design an application for Aqua.
Accessibility, Design Guidelines, User Experience Guides 2008-06-09
Core Image Programming Guide (HTML) (PDF)
Provides an overview and explains how to use and create image filters and image units.
Graphics & Imaging Guides 2008-06-09
Image Kit Programming Guide (HTML) (PDF)
Explains how to support browsing, viewing, editing, and processing images.
Graphics & Imaging Guides 2008-06-09
Image Unit Tutorial (HTML) (PDF)
Describes how to write image processing kernels and package them for distribution.
Graphics & Imaging Guides 2008-06-09
Xcode Quick Tour Guide for Mac OS X (HTML) (PDF)
Provides a hands-on introduction to Xcode, Apple's comprehensive suite of software development tools for Mac OS X.
Tools Guides 2008-06-05
Xcode Overview (HTML) (PDF) (日本語 HTML) (日本語 PDF)
Describes the Xcode IDE and its major components, and provides and overview of the development process.
Tools Guides 2008-05-27
Core Animation Programming Guide (HTML) (PDF)
Introduces the main components and services of Core Animation.
Graphics & Imaging Guides 2008-05-06
URL Loading System (HTML) (PDF)
Explains how to manipulate URLs and transfer URL contents.
Internet & Web, Networking Guides 2008-05-06
Xcode Unit Testing Guide (HTML) (PDF)
Explains how to incorporate unit tests into your development process using Xcode.
Design Guidelines Guides 2008-05-02
Xcode Design Tools for Class Modeling (HTML) (PDF)
Describes the Xcode Design Tools for Class Modeling.
Design Guidelines, Tools Guides 2008-04-15
Xcode Tools for Core Data (HTML) (PDF)
Describes the Xcode modeling tools for Core Data.
Data Management, Tools Guides 2008-04-15
View Programming Guide for Cocoa (HTML) (PDF)
Explains how to design and implement Cocoa views in applications.
Graphics & Imaging Guides 2008-04-10
Animation Overview (HTML) (PDF)
Describes the animation facilities provided by Mac OS X.
Games, Graphics & Imaging Guides 2008-04-08
Animation Types and Timing Programming Guide (HTML) (PDF)
Describes the animation and timing classes used by both Core Animation and Cocoa Animation proxies.
Graphics & Imaging Guides 2008-04-08
Uniform Type Identifiers Overview (HTML) (PDF)
Describes uniform type identifiers and how to use them.
File Management, Interapplication Communication Guides 2008-04-08
Accessibility Overview (HTML) (PDF)
Explains how to use the accessibility features built into Mac OS X.
Accessibility Guides 2008-03-11
AppleScript Language Guide (HTML) (PDF)
Defines the AppleScript scripting language. Includes many brief sample scripts.
Scripting & Automation Guides 2008-03-11
CFNetwork Programming Guide (HTML) (PDF)
Explains how to use Core Foundation networking functions to work with low-level BSD sockets.
Networking, Security Guides 2008-03-11
Cocoa Scripting Guide (HTML) (PDF)
Explains how to create scriptable Cocoa applications that use the scripting definition (sdef) format.
Design Guidelines, Scripting & Automation Guides 2008-03-11
Core Animation Cookbook (HTML) (PDF)
Demonstrates common Core Animation tasks.
Graphics & Imaging Guides 2008-03-11
Cursor Management (HTML) (PDF)
Explains how to set the cursor and handle cursor-update events in Cocoa applications.
Events & Other Input, User Experience Guides 2008-03-11
Garbage Collection Programming Guide (HTML) (PDF)
Describes the garbage collection system for Cocoa.
Design Guidelines, Objective-C Language, Performance, Runtime Architecture Guides 2008-03-11
Scripting Bridge Programming Guide for Cocoa (HTML) (PDF)
Describes the Scripting Bridge technology, which bridges OSA-compliant applications to Objective-C, and explains how to use it in Cocoa programs.
Scripting & Automation Guides 2008-03-11
Atomic Store Programming Topics (HTML) (PDF)
Describes how to use the Core Data atomic store API to create persistent stores that use a custom format.
Data Management Guides 2008-02-08
Core Data Model Versioning and Data Migration Programming Guide (HTML) (PDF)
Explains the managed object model versioning and data migration features of Core Data.
Data Management Guides 2008-02-08
Core Data Programming Guide (HTML) (PDF)
Explains how to manage objects using the Core Data framework.
Data Management, Design Guidelines Guides 2008-02-08
Font Handling (HTML) (PDF)
Explains the Cocoa font management system and how users select fonts.
Text & Fonts Guides 2008-02-08
Low-Level Core Data Tutorial (HTML) (PDF)
A hands-on guide to creating a command-line utility using low-level features of Core Data.
Data Management, Design Guidelines Guides 2008-02-08
Low-Level File Management Programming Topics (HTML) (PDF)
Explains the low-level ways Cocoa applications can interact with files.
File Management Guides 2008-02-08
Memory Management Programming Guide for Cocoa (HTML) (PDF)
Explains how to allocate and deallocate objects in Cocoa.
Design Guidelines, Objective-C Language Guides 2008-02-08
Model Object Implementation Guide (HTML) (PDF)
Describes issues relating to the design and implementation of model objects
Design Guidelines Guides 2008-02-08
NSPersistentDocument Core Data Tutorial (HTML) (PDF)
Step-by-step instructions for building a simple but functionally rich application using NSPersistentDocument and Cocoa bindings.
Data Management, Design Guidelines Guides 2008-02-08
Number and Value Programming Topics for Cocoa (HTML) (PDF)
Explains how to use Cocoa object wrappers for primitive C data types.
Data Management Guides 2008-02-08
Quick Look Programming Guide (HTML) (PDF)
Describes the purporse and architecture of Quick Look generators and explains how to create them.
User Experience Guides 2008-02-08
Search Fields (HTML) (PDF)
Explains how to use Cocoa search fields.
User Experience Guides 2008-02-08
Security Overview (HTML) (PDF)
An introduction to computer security concepts and the Mac OS X security APIs.
Security Guides 2008-02-08
Text Editing Programming Guide for Cocoa (HTML) (PDF)
Explains how to control the behavior of the Cocoa text system as it performs text editing.
Text & Fonts Guides 2008-02-08
Threading Programming Guide (HTML) (PDF)
Explains how to use threads in Cocoa applications.
Performance, Process Management Guides 2008-02-08
Automator Programming Guide (HTML) (PDF)
Describes the concepts and tasks for developing actions, which are bundles loaded by the Automator application.
Apple Applications, Tools Guides 2007-12-11
Button Programming Topics for Cocoa (HTML) (PDF)
Explains how to use Cocoa buttons.
User Experience Guides 2007-12-11
Object-Oriented Programming with Objective-C (HTML) (PDF)
Describes object-oriented programming from the perspective of an Objective-C developer.
Design Guidelines, Objective-C Language Guides 2007-12-11
PDF Kit Programming Guide (HTML) (PDF)
Introduces basic PDF concepts and describes how to use PDF Kit to display PDF documents in your application.
Graphics & Imaging Guides 2007-12-11
Quartz Composer Custom Patch Programming Guide (HTML) (PDF)
Describes how to create custom patches for distribution.
Graphics & Imaging Guides 2007-12-11
Text Layout Programming Guide for Cocoa (HTML) (PDF)
Explains how the Cocoa text system lays out text on pages.
Text & Fonts Guides 2007-12-11
Token Field Programming Guide for Cocoa (HTML) (PDF)
Describes how to set up and programatically manage a token field.
User Experience Guides 2007-12-11
Apple Help Programming Guide (HTML) (PDF)
Explains how to author, package, and display user help content in Mac OS X.
Apple Applications, User Experience Guides 2007-10-31
AppleScript Overview (HTML) (PDF)
Introduces the technology for writing scripts to control applications. Useful for scripters and application developers.
Scripting & Automation Guides 2007-10-31
Archives and Serializations Programming Guide for Cocoa (HTML) (PDF)
Explains how to put Cocoa objects into and remove them from a representation suitable for archiving.
Data Management Guides 2007-10-31
Audio Queue Services Programming Guide (HTML) (PDF)
Describes how to play and record audio using Audio Queue Services.
Audio Guides 2007-10-31
Audio Unit Programming Guide (HTML) (PDF)
Explains how to use Core Audio frameworks and the Core Audio SDK to create audio units.
Audio Guides 2007-10-31
Calendar Store Programming Guide (HTML) (PDF)
Explains how to access iCal data.
Apple Applications, Data Management, General Guides 2007-10-31
Carbon-Cocoa Integration Guide (HTML) (PDF)
Explains how to use both Carbon and Cocoa in developing an application.
Design Guidelines Guides 2007-10-31
Cocoa Application Tutorial (HTML) (PDF)
Describes how to build a simple Cocoa application using Xcode.
Objective-C Language Guides 2007-10-31
Cocoa Drawing Guide (HTML) (PDF)
Explains how to use Cocoa to draw your application's user interface.
Graphics & Imaging Guides 2007-10-31
Cocoa Fundamentals Guide (HTML) (PDF)
Introduces the basic concepts, terminology, architectures, and design patterns of the Cocoa frameworks and development environment.
Design Guidelines Guides 2007-10-31
Collections Programming Topics for Cocoa (HTML) (PDF)
Explains how to group objects in arrays, sets, or dictionaries in Cocoa.
Data Management Guides 2007-10-31
Instant Message Programming Guide (HTML) (PDF)
Explains how to access iChat services and buddies and use iChat Theater through code samples.
Apple Applications, General, Internet & Web Guides 2007-10-31
Interface Builder User Guide (HTML) (PDF)
Conceptual information and tasks explaining how to use the Interface Builder application to design user interfaces.
Tools Guides 2007-10-31
Mac OS X Technology Overview (HTML) (PDF)
Introduces Mac OS X and its technologies.
Accessibility Guides 2007-10-31
Providing PDF Workflow Options in the Print Dialog (HTML) (PDF)
Installation information and examples, including the use of Automator workflows.
Printing Guides 2007-10-31
QTKit Capture Programming Guide (HTML) (PDF)
Describes how to capture media and output it QuickTime movies.
QuickTime Guides 2007-10-31