Leopard Reference Library
This page lists new and recently changed documents, including Articles, Guides, Reference, Release Notes, Sample Code, Technical Notes, and Technical Q&As. Most documents have a revision history, which details additions and changes to that document since the previous version. Look for "Revision History" at the bottom of the document or in the document's table of contents.

Items are listed in reverse chronological order by publication date. To see the list sorted by the type of revision, click Sort by Revision Type. Items published for the first time (First Version) will be at the top of the list, followed by items with new or changed content (Content Update), followed by items with small fixes, such as typos and format errors, but no significant content changes (Minor Change).

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Document Revision Descriptions
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2009-03-03 64-Bit Transition Guide for Cocoa (HTML) (PDF)
Updated to add a section on tuning memory usage in 64-bit Cocoa applications.
 Content Update Guides Design Guidelines
2008-10-24 Animating the frame of a CALayer. (HTML)
First Version
 First Version Technical Q&As Graphics & Imaging
2008-10-15 Animation Overview (HTML) (PDF)
Corrected typos.
 Minor Change Guides Games, Graphics & Imaging
2008-11-19 Application Kit Framework Reference (HTML) (PDF)
Added NSTextInputClient Protocol Reference.
 Minor Change Reference General, Objective-C Language, User Experience
2008-11-19 Application Kit Functions Reference (HTML) (PDF)
Added descriptions for the NSDrawThreePartImage and NSDrawNinePartImage functions.
 Minor Change Reference Objective-C Language
2009-02-04 Archives and Serializations Programming Guide for Cocoa (HTML) (PDF)
Replaced instances of "/tmp" with NSTemporaryDirectory().
 Minor Change Guides Data Management
2009-01-06 Authorization Services Programming Guide (HTML) (PDF)
Corrected minor errors. Changed the title from "Performing Privileged Operations With Authorization Services."
 Minor Change Guides Security
2009-05-06 Binary Data Programming Guide for Cocoa (HTML) (PDF)
Corrected the code listing under Modifying Bytes to account for the null terminator on the strings.
 Minor Change Guides Data Management
2008-10-15 Button Programming Topics for Cocoa (HTML) (PDF)
Added "Querying Button Matrices" plus a example of programmatically creating a matrix of radio buttons. Also removed "Deprecated Buttons" from "Types of Buttons".
 Minor Change Guides User Experience
2009-03-04 CalAlarm Class Reference (HTML)
Minor updates throughout.
 Minor Change Reference Apple Applications
2009-02-04 CALayer Class Reference (HTML) (PDF)
Added -init method description.
 Minor Change Reference Graphics & Imaging
2008-09-30 CALayerEssentials (HTML) (DMG) (ZIP)
Demonstrates the basics of setting up various Core Animation layers
 First Version Sample Code Graphics & Imaging
2009-04-08 CalCalendarStore Class Reference (HTML) (PDF)
Minor edits throughout.
 Minor Change Reference Apple Applications
2009-03-04 CalEvent Class Reference (HTML) (PDF)
Minor updates throughout.
 Minor Change Reference Apple Applications
2009-03-04 CalRecurrenceRule Class Reference (HTML) (PDF)
Minor edits throughout.
 Minor Change Reference Apple Applications
2009-03-04 CAMediaTiming Protocol Reference (HTML) (PDF)
Documented kCAFillModeFrozen as deprecated.
 Minor Change Reference Graphics & Imaging
2008-11-19 Certificate, Key, and Trust Services Programming Guide (HTML) (PDF)
Added information about, and code samples for, iPhone OS.
 Content Update Guides Security
2008-11-19 Certificate, Key, and Trust Services Reference (HTML) (PDF)
Updated to Mac OS X v 10.5.
 Content Update Reference Security
2009-05-06 CFNetwork Programming Guide (HTML) (PDF)
Corrected typos.
 Minor Change Guides Networking, Security
2009-03-08 Cocoa Bindings Programming Topics (HTML) (PDF)
Added warning about lack of key-value observing change values to Controller Key-Value Observing Compliance.
 Minor Change Guides Design Guidelines, User Experience
2009-01-06 Cocoa Drawing Guide (HTML) (PDF)
Updated the guidelines associated with resolution independent drawing.
 Minor Change Guides Graphics & Imaging
2009-02-04 Cocoa Event-Handling Guide (HTML) (PDF)
Added Mac OS X v10.5 details about scroll-wheel events and key equivalents.
 Minor Change Guides Events & Other Input
2008-11-19 Cocoa Fundamentals Guide (HTML) (PDF)
Made various small corrections.
 Content Update Guides Design Guidelines
2008-11-19 Code Signing Guide (HTML) (PDF)
Added a chapter describing the code signing requirement language.
 Content Update Guides Security
2009-02-04 Collections Programming Topics for Cocoa (HTML) (PDF)
Corrected a code example showing indexOfObjectIdenticalTo:.
 Minor Change Guides Data Management
2009-03-04 Color Programming Topics for Cocoa (HTML) (PDF)
Removed statement that drawing to printers doesn't support alpha.
 Minor Change Guides Graphics & Imaging
2008-10-15 Control and Cell Programming Topics for Cocoa (HTML) (PDF)
Made minor corrections.
 Minor Change Guides User Experience
2008-11-13 Core Animation Programming Guide (HTML) (PDF)
Introduces iPhone SDK content to Mac OS X content. Corrects frame animation capabilities.
 Content Update Guides Graphics & Imaging
2008-11-24 Core Animation properties and Reference Counting (HTML)
First Version
 First Version Technical Q&As Games, Graphics & Imaging, Objective-C Language, Resource Management
2009-03-04 Core Data Overview (HTML)
First version of a new document that describes a roadmap for learning Core Data.
 Minor Change Getting Started Data Management
2009-03-04 Core Data Programming Guide (HTML) (PDF)
Minor revision to accommodate new Getting Started document.
 Minor Change Guides Data Management, Design Guidelines
2009-03-04 Core Data Snippets (HTML) (PDF)
New document that provides snippets of code that you can use when writing a program that uses Core Data.
 First Version Guides Data Management
2009-03-04 Core Data Utility Tutorial (HTML) (PDF)
Updated title to better reflect purpose.
 Minor Change Guides Data Management, Design Guidelines
2009-02-04 Dashboard Programming Topics (HTML) (PDF)
Made minor corrections.
 Minor Change Guides Apple Applications
2008-10-15 Data Formatting Programming Guide for Cocoa (HTML) (PDF)
Corrected typographical errors.
 Minor Change Guides Data Management
2008-09-08 Determining if an application uses Objective-C Garbage Collection (HTML)
First Version
 First Version Technical Q&As Objective-C Language
2009-02-04 Dialogs and Special Panels (HTML) (PDF)
Updated for Mac OS X v10.5: added "Customizing Alert Dialogs," which describes the suppression checkbox and accessory views.
 Minor Change Guides User Experience
2008-09-16 Disabling Processor Cores on a Multi-Core System (HTML) (日本語 HTML)
Added CHUD Processor preference pane. Removed obsolete content. Made editorial changes.
 Content Update Technical Q&As Performance
2009-03-04 Dock Tile Programming Guide (HTML) (PDF)
Updated to include guidelines for Cocoa programmers.
 Content Update Guides User Experience
2009-01-12 Document-Based Applications Overview (HTML) (PDF)
Removed private constant from document types listing.
 Minor Change Guides Design Guidelines
2008-10-15 DOMDocument Additions Reference (HTML) (PDF)
Updated per Mac OS X v10.5.
 Minor Change Reference User Experience
2008-10-15 DOMElement Additions Reference (HTML)
First revision of this document.
 First Version Reference User Experience
2009-01-26 DOMHTMLDocument Additions Reference (HTML) (PDF)
First revision of this document.
 First Version Reference User Experience
2009-02-04 DOMNode Additions Reference (HTML) (PDF)
Added separate parameter and return-value descriptions.
 Minor Change Reference User Experience
2008-10-15 DOMRange Additions Reference (HTML) (PDF)
Updated per Mac OS X v10.5.
 Minor Change Reference User Experience
2009-05-01 Driving OpenGL Rendering Loops (HTML)
Corrected a typo.
 Minor Change Technical Q&As Events & Other Input, Games, Graphics & Imaging
2009-03-04 Error Handling Programming Guide For Cocoa (HTML) (PDF)
Corrected a link error.
 Minor Change Guides Design Guidelines, Objective-C Language
2008-09-09 Event-Driven XML Programming Guide for Cocoa (HTML) (PDF)
Added note about introduction of namespace support in v10.4.
 Minor Change Guides Data Management
2008-09-08 Expanding Tilde-based paths (HTML)
Simplified POSIX and CF versions using the embedded glob() function.
 Minor Change Technical Q&As File Management
2009-04-29 File Wrappers with Core Data Documents (HTML) (DMG) (ZIP)
This sample demonstrates how directory file wrappers can be used with NSPersistentDocument.
 First Version Sample Code Data Management, File Management
2009-05-06 Foundation Constants Reference (HTML) (PDF)
Corrected the definition of NSDecimalNoScale.
 Minor Change Reference Data Management, Objective-C Language
2008-09-09 Foundation Data Types Reference (HTML) (PDF)
Added descriptions for NSInteger and NSUInteger.
 Minor Change Reference Data Management, Objective-C Language
2008-10-15 Foundation Functions Reference (HTML) (PDF)
Corrected discussions of NSMapInsert and NSTemporaryDirectory; clarified behavior of NSPointInRect.
 Minor Change Reference Data Management
2009-01-06 Foundation Release Notes (10.4 and earlier) (HTML)
Updated with information on Mac OS X 10.4.
 First Version Release Notes General
2008-11-19 Garbage Collection Programming Guide (HTML) (PDF)
Added note that Foundation programs need to use objc_startCollectorThread().
 Minor Change Guides Design Guidelines, Objective-C Language, Performance, Runtime Architecture
2009-01-06 IBDocument Class Reference (HTML) (PDF)
Made minor technical corrections.
 Minor Change Reference Tools
2009-03-04 IKSlideshowDataSource Protocol Reference (HTML) (PDF)
Adding note that data source methods may be called on secondary threads.
 Minor Change Reference Graphics & Imaging
2009-05-06 Image Unit Tutorial (HTML) (PDF)
Updated line 7 of listing 2-7.
 Minor Change Guides Graphics & Imaging
2009-05-06 IMKServerInput Protocol Reference (HTML) (PDF)
Clarified constant descriptions.
 Minor Change Reference Internationalization, Text & Fonts
2008-10-15 IMService Class Reference (HTML) (PDF)
Minor edit.
 Minor Change Reference Apple Applications
2008-11-19 Interface Builder User Guide (HTML) (PDF)
Updated to incorporate information about nib files in iPhone OS.
 Minor Change Guides Tools
2009-01-06 Internationalization Programming Topics (HTML) (PDF)
Fixed the ibtool examples to use the updated syntax.
 Minor Change Guides Internationalization
2008-11-19 ISyncSession Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change Reference Syncing
2009-02-04 Key-Value Coding Programming Guide (HTML) (PDF)
Added substantial task information and sample code.
 Content Update Guides Data Management, Design Guidelines
2009-05-06 Key-Value Observing Programming Guide (HTML) (PDF)
Clarified Core Data requirement in Registering Dependent Keys.
 Minor Change Guides Data Management, Design Guidelines
2009-03-12 Keychain Services Programming Guide (HTML) (PDF)
Corrected a typo.
 Minor Change Guides Security
2008-11-19 Keychain Services Reference (HTML) (PDF)
Added Keychain Services API for iPhone OS.
 Minor Change Reference Security
2009-03-05 Low-Level File Management Programming Topics (HTML) (PDF)
Corrected a broken link.
 Minor Change Guides File Management
2009-02-04 Mac OS X ABI Function Call Guide (HTML) (PDF)
Made content corrections.
 Minor Change Guides Intel-Based Macs
2009-02-04 Mac OS X ABI Mach-O File Format Reference (HTML) (PDF)
Made minor changes.
 Minor Change Reference Runtime Architecture
2008-10-15 Mac OS X Technology Overview (HTML) (PDF)
Removed outdated reference to jikes compiler. Marked the AppleShareClient framework as deprecated, which it was in Mac OS X v10.5.
 Minor Change Guides Accessibility
2009-05-06 Memory Management Programming Guide for Cocoa (HTML) (PDF)
Corrected typographical errors.
Minor Change Guides Design Guidelines, Objective-C Language
2009-05-06 NSAnimatablePropertyContainer Protocol Reference (HTML) (PDF)
Corrected typos.
 Minor Change Reference Graphics & Imaging
2009-02-04 NSApplication Class Reference (HTML) (PDF)
Added dockTile method description.
 Minor Change Reference Runtime Architecture
2008-10-15 NSAtomicStore Class Reference (HTML) (PDF)
Corrected discussion of save: method.
 Minor Change Reference Data Management
2009-03-04 NSATSTypesetter Class Reference (HTML) (PDF)
Removed reference to ATSUI.
 Minor Change Reference Text & Fonts
2008-10-15 NSAttributedString Class Reference (HTML) (PDF)
Added cautionary note about isEqual: comparison of NSAttributedString objects having attributes such as attachments, lists, and tables.
 Minor Change Reference Data Management, Text & Fonts
2009-01-02 NSAutoreleasePool Class Reference (HTML) (PDF)
Changed "managed memory environment" to "reference-counted environment" throughout.
 Minor Change Reference Objective-C Language, Performance
2009-01-06 NSBitmapImageRep Class Reference (HTML) (PDF)
Updated the descriptions of the initWithCGImage: and initWithCIImage: methods.
 Minor Change Reference Graphics & Imaging
2008-10-15 NSBox Class Reference (HTML) (PDF)
Corrected descriptions of getter methods in "Customizing" method group, setTitleFont:, and titleFont.
 Minor Change Reference Graphics & Imaging, Printing, User Experience
2009-04-08 NSButtonCell Class Reference (HTML) (PDF)
Added style override details to setAttributedTitle:.
 Minor Change Reference Events & Other Input, User Experience
2009-02-04 NSCalendar Class Reference (HTML) (PDF)
Clarified return value of ordinalityOfUnit:inUnit:forDate:.
 Minor Change Reference Data Management, Internationalization
2009-02-04 NSCell Class Reference (HTML) (PDF)
Documented truncatesLastVisibleLine and setTruncatesLastVisibleLine: methods. Added deprecated image scaling constants.
 Minor Change Reference User Experience
2008-10-15 NSCharacterSet Class Reference (HTML) (PDF)
Corrected typographical error.
 Minor Change Reference Data Management
2009-01-06 NSColor Class Reference (HTML) (PDF)
Added definition for NSAppKitVersionNumberWithPatternColorLeakFix macro.
 Minor Change Reference Graphics & Imaging
2008-09-09 NSCondition Class Reference (HTML) (PDF)
Corrected availability information.
 Minor Change Reference Process Management
2008-10-15 NSControl Class Reference (HTML) (PDF)
Revised wording of several methods and added descriptions of NSInteger-related "value" methods.
 Minor Change Reference User Experience
2009-05-06 NSCountedSet Class Reference (HTML) (PDF)
Referenced CFBag, which implements similar functionality.
 Minor Change Reference Data Management
2009-01-06 NSCursor Class Reference (HTML) (PDF)
Added a definition for the NSAppKitVersionNumberWithCursorSizeSupport macro.
 Minor Change Reference User Experience
2009-05-06 NSData Class Reference (HTML) (PDF)
Added subclassing notes. Clarified behavior of bytes and getData:length: methods.
 Minor Change Reference Data Management
2008-10-15 NSDate Class Reference (HTML) (PDF)
Revised documentation of description and descriptionWithLocale: methods.
 Minor Change Reference Data Management
2008-10-15 NSDateComponents Class Reference (HTML) (PDF)
Clarified meaning of weekday and weekday ordinal units.
 Minor Change Reference Data Management
2008-11-19 NSDateFormatter Class Reference (HTML) (PDF)
Added note about supported behaviors for iPhone OS.
 Minor Change Reference Data Management, Internationalization, User Experience
2009-04-08 NSDictionary Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change Reference Data Management, Design Guidelines
2008-10-15 NSDirectoryEnumerator Class Reference (HTML) (PDF)
Added note in Introduction to show how to retrieve a directory enumerator instance.
 Minor Change Reference File Management
2009-03-04 NSDockTile Class Reference (HTML) (PDF)
Updated to describe differences in behavior between application and window dock tiles.
 Content Update Reference User Experience
2009-01-06 NSDocument Class Reference (HTML) (PDF)
Added description of NSChangeRedone constant. Updated other constant declarations and revised their descriptions. Added subclassing advice section with cross reference to main discussion.
 Minor Change Reference Design Guidelines
2008-10-15 NSDocumentController Class Reference (HTML) (PDF)
Added defaultType to replacement information for deprecated openUntitledDocumentOfType:display: method.
 Minor Change Reference Design Guidelines
2009-05-06 NSError Class Reference (HTML) (PDF)
Added a link to the Foundation error constants.
 Minor Change Reference Design Guidelines
2009-02-04 NSEvent Class Reference (HTML) (PDF)
Added descriptions of CGEvent and mouse-movement event coalescing methods.
 Minor Change Reference Events & Other Input
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