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).

New and updated Reference Library documents are announced in the bi-weekly Apple Developer Connection News, available as an option to ADC members. See the Membership Overview page for details on joining.
Document Revision Descriptions
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2008-03-17 QTKit Capture - Extracting SMPTE Timecode information from a QTSampleBuffer (HTML)
First Version
 First Version Technical Q&As QuickTime
2008-03-11 Accessibility Overview (HTML) (PDF)
Removed the Children attribute from the Busy Indicator role information.
 Minor Change Guides Accessibility
2008-03-11 AppleScript Language Guide (HTML) (PDF)
Updated to describe AppleScript features through Mac OS X v10.5 and AppleScript 2.0.
 Content Update Guides Scripting & Automation
2008-03-11 CAAnimationGroup Class Reference (HTML) (PDF)
Clarified that the animations grouped within a CAAnimationGroup do not get delegate messages, but that the group does.
 Content Update Reference Graphics & Imaging
2008-03-11 CAOpenGLLayer Class Reference (HTML) (PDF)
Clarified that copyCGLPixelFormatForDisplayMask:, copyCGLContextForPixelFormat:, releaseCGLContext:, and releaseCGLPixelFormat: should only be implemented, never called.
 Minor Change Reference Graphics & Imaging
2008-03-11 CFNetwork Programming Guide (HTML) (PDF)
Made minor typographical corrections and clarifications.
 Minor Change Guides Networking, Security
2008-03-11 Cocoa Scripting Guide (HTML) (PDF)
Minor corrections for working with sdefs.
 Minor Change Guides Design Guidelines, Scripting & Automation
2008-03-11 Core Animation Cookbook (HTML) (PDF)
Corrected typos.
 Minor Change Guides Graphics & Imaging
2008-03-11 Cursor Management (HTML) (PDF)
Updated information about cursor size and types. Replaced one article with a more relevant article.
 Minor Change Guides Events & Other Input, User Experience
2008-03-11 Foundation Data Types Reference (HTML) (PDF)
Updated float to CGFloat where appropriate.
 Minor Change Reference Data Management, Objective-C Language
2008-03-11 Garbage Collection Programming Guide (HTML) (PDF)
Corrected typographical errors.
 Minor Change Guides Design Guidelines, Objective-C Language, Performance, Runtime Architecture
2008-03-11 Managing QTCompressionOptions - An overview of the QTCompressionOptionsWindow sample (HTML)
Editorial
 Minor Change Technical Notes QuickTime
2008-03-11 NSDocument Class Reference (HTML) (PDF)
Revised descriptions of saveDocumentWithDelegate:didSaveSelector:contextInfo: and isDocumentEdited methods. Added descriptions (previously removed) of deprecated methods no longer appearing in header file.
 Minor Change Reference Design Guidelines
2008-03-11 NSDocumentController Class Reference (HTML) (PDF)
Removed false statement that reviewUnsavedDocumentsWithAlertTitle:cancellable:delegate:didReviewAllSelector:contextInfo: can ever return NO for cancellable.
 Minor Change Reference Design Guidelines
2008-03-11 NSFontDescriptor Class Reference (HTML) (PDF)
Added description of NSFontFamilyClassMask constant.
 Minor Change Reference Objective-C Language
2008-03-11 NSMethodSignature Class Reference (HTML) (PDF)
Added a live link to a cross-reference in the Overview section.
 Minor Change Reference Objective-C Language
2008-03-11 NSPersistentStoreCoordinator Class Reference (HTML) (PDF)
Corrected minor typographical errors.
 Minor Change Reference Data Management
2008-03-11 NSPrintInfo Class Reference (HTML) (PDF)
Made minor technical corrections.
 Minor Change Reference Printing
2008-03-11 NSProgressIndicator Class Reference (HTML) (PDF)
Corrected typos.
 Minor Change Reference User Experience
2008-03-11 NSSearchFieldCell Class Reference (HTML) (PDF)
Disambiguated the descriptions of the methods setSendsSearchStringImmediately: and setSendsWholeSearchString:.
 Minor Change Reference User Experience
2008-03-11 NSSet Class Reference (HTML) (PDF)
Added NSFastEnumeration to list of adopted protocols.
 Minor Change Reference Data Management
2008-03-11 NSString Class Reference (HTML) (PDF)
Added paragraph to introduction describing the byte-order assumptions of factory and initialization methods taking UTF-16 input.
 Minor Change Reference Data Management
2008-03-11 NSURLCache Class Reference (HTML) (PDF)
Updated discussion for the -sharedURLCache method.
 Minor Change Reference Internet & Web, Networking
2008-03-11 NSView Class Reference (HTML) (PDF)
Corrected information about the isOpaque method that's found in the discussion of the drawRect: method.
 Minor Change Reference Events & Other Input, Graphics & Imaging, Printing
2008-03-11 Scripting Bridge Programming Guide for Cocoa (HTML) (PDF)
Changed occurrences of the nonexistent method name +classForApplicationWithBundleIdentifier to the correct method name, +applicationWithBundleIdentifier:.
 Minor Change Guides Scripting & Automation
2008-03-11 Suppressing the "unexpectedly quit" alert (HTML)
Updated content for Mac OS X 10.4 and 10.5. Fixed a typographical error. "~Library/Preferences/com.apple.CrashReporter.plist" should be "~/Library/Preferences/com.apple.CrashReporter.plist."
 Minor Change Technical Q&As User Experience
2008-03-10 CALayer Class Reference (HTML) (PDF)
Corrected method signature for removeAnimationForKey:.
 Minor Change Reference Graphics & Imaging
2008-03-10 CarbonCocoaTempConverter (HTML) (DMG) (ZIP)
Updated to produce a universal binary. Added code and comments for clarification.
 Content Update Sample Code Events & Other Input, User Experience
2008-03-05 PhotoSearch (HTML) (DMG) (ZIP)
Removed pre-Leopard workarounds for highlighting cells. Also replaced deprecated -selectRows:byExtendingSelection: and -columnsInRect: with their modern NSIndexSet replacements.
 Content Update Sample Code Data Management, Events & Other Input, User Experience
2008-02-28 SBSendEmail (HTML) (DMG) (ZIP)
Using the Scripting Bridge to tell Mail.app to send an email message with an optional attachment.
 First Version Sample Code Interapplication Communication, Internet & Web, Scripting & Automation
2008-02-27 Common mistakes with delegation in Cocoa (HTML)
First Version
 First Version Technical Q&As Design Guidelines, Objective-C Language
2008-02-27 Disabling text completion in an NSTextField (HTML)
First Version
 First Version Technical Q&As Text & Fonts, User Experience
2008-02-27 NSDate - Natural language date parsing in early Leopard releases (HTML)
First Version
 First Version Technical Q&As User Experience
2008-02-25 FSMegaInfo (HTML) (DMG) (ZIP)
Prints information about various file system objects; helpful when debugging VFS plug-ins.
 First Version Sample Code File Management
2008-02-22 QTCompressionOptionsWindow (HTML) (DMG) (ZIP)
Demonstrates how easy it is to manage QTCompressionOptions instances with a user interface.
 First Version Sample Code QuickTime
2008-02-20 Customizing Process Stack Size (HTML)
Updated NSThread section for Leopard.
 Minor Change Technical Q&As Process Management, Resource Management
2008-02-08 Application Kit Functions Reference (HTML) (PDF)
Updated thread safety information for the NSApplicationMain function.
 Minor Change Reference Objective-C Language
2008-02-08 Atomic Store Programming Topics (HTML) (PDF)
Corrected typographical errors.
Minor Change Guides Data Management
2008-02-08 Core Data Model Versioning and Data Migration Programming Guide (HTML) (PDF)
Added a note about migrating stores from Mac OS X v10.4 (Tiger).
 Minor Change Guides Data Management
2008-02-08 Core Data Programming Guide (HTML) (PDF)
Enhanced the discussions of legacy data importing and memory management.
 Minor Change Guides Data Management, Design Guidelines
2008-02-08 Font Handling (HTML) (PDF)
Corrected typo in "Responding to Font Changes" code example.
 Minor Change Guides Text & Fonts
2008-02-08 Low-Level Core Data Tutorial (HTML) (PDF)
Updated for Mac OS X v10.5.
 Content Update Guides Data Management, Design Guidelines
2008-02-08 Low-Level File Management Programming Topics (HTML) (PDF)
Removed references to deprecated Java classes.
 Minor Change Guides File Management
2008-02-08 Memory Management Programming Guide for Cocoa (HTML) (PDF)
Corrected a broken link to the "Carbon-Cocoa Integration Guide."
 Minor Change Guides Design Guidelines, Objective-C Language
2008-02-08 Model Object Implementation Guide (HTML) (PDF)
Corrected the implementation example for setNilValueForKey:; updated the examples for dependent keys.
 Minor Change Guides Design Guidelines
2008-02-08 NSAnimationContext Class Reference (HTML) (PDF)
Corrected typos.
 Minor Change Reference Graphics & Imaging
2008-02-08 NSAutoreleasePool Class Reference (HTML) (PDF)
Corrected typographical errors.
Minor Change Reference Objective-C Language, Performance
2008-02-08 NSConnection Class Reference (HTML) (PDF)
Updated information for the enableMultipleThreads method.
 Minor Change Reference Interapplication Communication
2008-02-08 NSCursor Class Reference (HTML) (PDF)
Clarified the function of the currentCursor method.
 Minor Change Reference User Experience
2008-02-08 NSData Class Reference (HTML) (PDF)
Corrected typographical errors.
Minor Change Reference Data Management
2008-02-08 NSDictionary Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change Reference Data Management, Design Guidelines
2008-02-08 NSEntityDescription Class Reference (HTML) (PDF)
Updated the discussion of the method insertNewObjectForEntityForName:inManagedObjectContext: for Mac OS X v10.5.
 Minor Change Reference Objective-C Language
2008-02-08 NSFetchRequest Class Reference (HTML) (PDF)
Corrected the discussion of the resultType method.
 Minor Change Reference Data Management
2008-02-08 NSLocale Class Reference (HTML) (PDF)
Enhanced the description of the NSLocaleMeasurementSystem constant.
 Minor Change Reference Internationalization, User Experience
2008-02-08 NSLock Class Reference (HTML) (PDF)
Added a warning describing what happens when you unlock a lock that is not currently locked.
 Minor Change Reference Process Management
2008-02-08 NSMenu Class Reference (HTML) (PDF)
Corrected parameter descriptions for popUpContextMenu:withEvent:forView:withFont:.
 Minor Change Reference User Experience
2008-02-08 NSMenuItem Class Reference (HTML) (PDF)
Corrected the discussion for setKeyEquivalentModifierMask:.
 Minor Change Reference User Experience
2008-02-08 NSNetService Class Reference (HTML) (PDF)
Corrected typographical errors.
 Minor Change Reference Interapplication Communication, Internet & Web, Networking
2008-02-08 NSNumber Class Reference (HTML) (PDF)
Clarified the restricted return values that the (NSValue) objCType method returns.
Minor Change Reference Data Management
2008-02-08 NSPasteboard Class Reference (HTML) (PDF)
Enhanced discussions of color and URL pasteboard types.
 Minor Change Reference Interapplication Communication
2008-02-08 NSPersistentDocument Class Reference (HTML) (PDF)
Corrected a minor link error.
Minor Change Reference Data Management, Design Guidelines
2008-02-08 NSPersistentDocument Core Data Tutorial (HTML) (PDF)
Corrected typographical errors.
 Minor Change Guides Data Management, Design Guidelines
2008-02-08 NSRuleEditor Class Reference (HTML) (PDF)
Removed a broken link.
 Minor Change Reference User Experience
2008-02-08 NSRunLoop Class Reference (HTML) (PDF)
Updated the description of the runMode:beforeDate: method.
 Minor Change Reference Events & Other Input, Performance
2008-02-08 NSTimeZone Class Reference (HTML) (PDF)
Enhanced the discussions of the methods systemTimeZone and resetSystemTimeZone.
 Minor Change Reference Data Management, Internationalization
2008-02-08 Number and Value Programming Topics for Cocoa (HTML) (PDF)
Updated for Mac OS X v10.5.
Minor Change Guides Data Management
2008-02-08 Quick Look Programming Guide (HTML) (PDF)
Corrected minor errors.
 Minor Change Guides User Experience
2008-02-08 Re-enabling dragging from NSTableView to other applications (HTML) (日本語 HTML)
Updated for resolution of issue in Mac OS X 10.4.
 Minor Change Technical Q&As Interapplication Communication, User Experience
2008-02-08 Search Fields (HTML) (PDF)
Clarified the behavior of the cancel button.
Minor Change Guides User Experience
2008-02-08 Security Overview (HTML) (PDF)
Added descriptions of new features for Mac OS X v10.5.
 Minor Change Guides Security
2008-02-08 Text Editing Programming Guide for Cocoa (HTML) (PDF)
Corrected typographical errors.
 Minor Change Guides Text & Fonts
2008-02-08 Threading Programming Guide (HTML) (PDF)
Performed a major rewrite and update of thread-related concepts and tasks.
 Content Update Guides Performance, Process Management
2008-02-06 OpenGL Filter Basics Cocoa (HTML) (DMG) (ZIP)
How to use Objective-C and MVC design patterns in installing and utilizing filters in an OpenGL rendering pipeline
 First Version Sample Code Games, Graphics & Imaging
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