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The Reference Library is a comprehensive collection of Apple technical resources, including Articles, Guides, Reference, Release Notes, Sample Code, Technical Notes, and Technical Q&As. Each of the links below leads to the resources for a specific topic.

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Image Codec Reference for QuickTime (HTML) (PDF)
Describes the API for QuickTime image codecs.
QuickTime Reference 2006-05-23
Image Compression Manager Reference (HTML) (PDF)
Describes the API for QuickTime image compression.
QuickTime Reference 2006-05-23
Import and Export Reference for QuickTime (HTML) (PDF)
Describes the API for QuickTime graphics importing and exporting.
QuickTime Reference 2006-05-23
InstantMessage Constants Reference (HTML) (PDF)
Describes the constants found in the Instant Message framework.
Cocoa Reference 2006-05-23
InstantMessage Data Types Reference (HTML) (PDF)
Describes the data types found in the Instant Message framework.
Cocoa Reference 2006-05-23
Movie Controller Reference (HTML) (PDF)
Describes the API for QuickTime movie controllers.
QuickTime Reference 2006-05-23
Movie Toolkit Reference (HTML) (PDF)
Describes the API for QuickTime Movie Toolkit.
QuickTime Reference 2006-05-23
NSAppleEventManager Class Reference (HTML) (PDF)
Describes the class used to work with Apple event handler routines and to suspend and resume event handling.
Cocoa, Scripting & Automation Reference 2006-05-23
NSAppleScript Additions Reference (HTML) (PDF)
Describes additions to the NSAppleScript class to provide syntax-highlighted script source.
Cocoa, Scripting & Automation Reference 2006-05-23
NSArchiver Class Reference (HTML) (PDF)
Describes a class that encodes objects into an architecture-independent format.
Cocoa Reference 2006-05-23
NSChangeSpelling Protocol Reference (HTML) (PDF)
Describes the interface for correcting a misspelled word.
Cocoa, Text & Fonts Reference 2006-05-23
NSClassDescription Class Reference (HTML) (PDF)
Describes the interface for information about the relationships and properties of a class.
Cocoa Reference 2006-05-23
NSClipView Class Objective-C Reference (HTML) (PDF)
Describes the class that contains and scrolls the document view of a scroll view.
Cocoa, Graphics & Imaging Reference 2006-05-23
NSCloneCommand Class Reference (HTML) (PDF)
Describes the class used to clone a scriptable object or objects.
Cocoa, Scripting & Automation Reference 2006-05-23
NSCoder Application Kit Additions Reference (HTML) (PDF)
Describes additions for converting archived NXColor objects into NSColor objects.
Cocoa Reference 2006-05-23
NSCoding Protocol Reference (HTML) (PDF)
Describes the interface for archiving.
Cocoa Reference 2006-05-23
NSComboBox Class Reference (HTML) (PDF)
Describes a control for entering text or selecting from a pop-up list of items.
Cocoa, User Experience Reference 2006-05-23
NSComboBoxCell Class Reference (HTML) (PDF)
Describes the text field that provides the user interface for NSComboBox objects.
Cocoa, User Experience Reference 2006-05-23
NSComboBoxCellDataSource Protocol Reference (HTML) (PDF)
Describes the interface for receiving data requests from an NSComboBoxCell object.
Cocoa, User Experience Reference 2006-05-23
NSComboBoxDataSource Protocol Reference (HTML) (PDF)
Describes the interface for receiving data requests from an NSComboBox object.
Cocoa, User Experience Reference 2006-05-23
NSComparisonMethods Protocol Reference (HTML) (PDF)
Describes the interface for default comparison methods in the NSSpecifierTest class.
Cocoa, Scripting & Automation Reference 2006-05-23
NSCopying Protocol Reference (HTML) (PDF)
Describes the interface for providing immutable duplicates of objects.
Cocoa Reference 2006-05-23
NSCountCommand Class Reference (HTML) (PDF)
Describes the class used to count the number of objects of a specified class in the specified object container.
Cocoa, Scripting & Automation Reference 2006-05-23
NSCreateCommand Class Reference (HTML) (PDF)
Describes the class used to create a specified scriptable object.
Cocoa, Scripting & Automation Reference 2006-05-23
NSDecimalNumberBehaviors Protocol Reference (HTML) (PDF)
Describes the interface for controlling the behavior of NSDecimalNumber objects.
Cocoa Reference 2006-05-23
NSDeleteCommand Class Reference (HTML) (PDF)
Describes the class used to delete a specified scriptable object or objects.
Cocoa, Scripting & Automation Reference 2006-05-23
NSDeserializer Class Reference (HTML) (PDF)
Describes a deprecated technology replaced by the NSPropertyListSerialization class.
Cocoa Reference 2006-05-23
NSDrawer Class Reference (HTML) (PDF)
Describes a retractable user interface element that displays view objects.
Cocoa, User Experience Reference 2006-05-23
NSEditor Protocol Reference (HTML) (PDF)
Describes the interface used to commit or discard edits.
Cocoa Reference 2006-05-23
NSEditorRegistration Protocol Reference (HTML) (PDF)
Describes the interface for receiving uncommitted-change messages from Cocoa bindings-compatible views.
Cocoa Reference 2006-05-23
NSExistsCommand Class Reference (HTML) (PDF)
Describes the class used to determine whether a specified scriptable object exists.
Cocoa, Scripting & Automation Reference 2006-05-23
NSForm Class Reference (HTML) (PDF)
Describes a vertical matrix of NSFormCell objects.
Cocoa, User Experience Reference 2006-05-23
NSFormCell Class Reference (HTML) (PDF)
Describes a title and text entry field in an NSForm object.
Cocoa, User Experience Reference 2006-05-23
NSGetCommand Class Reference (HTML) (PDF)
Describes the class used to get the specified value or object from the specified scriptable object.
Cocoa, Scripting & Automation Reference 2006-05-23
NSGlyphGenerator Class Reference (HTML) (PDF)
Describes a glyph generator for text layout.
Cocoa, Text & Fonts Reference 2006-05-23
NSHTTPCookieStorage Class Reference (HTML) (PDF)
Describes a collection of cookies shared across all applications.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSHTTPURLResponse Class Reference (HTML) (PDF)
Describes a response to an HTTP request.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSIgnoreMisspelledWords Protocol Reference (HTML) (PDF)
Describes the interface for a spelling checker's ignored words list.
Cocoa, Text & Fonts Reference 2006-05-23
NSLogicalTest Class Reference (HTML) (PDF)
Describes the class used to perform logical operations in determining the scriptable objects a command acts on.
Cocoa, Scripting & Automation Reference 2006-05-23
NSMessagePort Class Reference (HTML) (PDF)
Describes an endpoint for distributed object connections or interprocess messaging.
Cocoa, Networking Reference 2006-05-23
NSMetadataItem Class Reference (HTML) (PDF)
Describes the metadata of a file.
Cocoa Reference 2006-05-23
NSMiddleSpecifier Class Reference (HTML) (PDF)
Describes the class used to specify the middle object in a collection.
Cocoa, Scripting & Automation Reference 2006-05-23
NSMoveCommand Class Reference (HTML) (PDF)
Describes the class used to move the specified scriptable object or objects.
Cocoa, Scripting & Automation Reference 2006-05-23
NSMutableAttributedString Additions Reference (HTML) (PDF)
Describes additions for setting attributes of mutable attributed strings.
Cocoa, Text & Fonts Reference 2006-05-23
NSMutableCharacterSet Class Reference (HTML) (PDF)
Describes a mutable set of characters.
Cocoa Reference 2006-05-23
NSMutableCopying Protocol Reference (HTML) (PDF)
Describes the interface for providing mutable duplicates of objects.
Cocoa Reference 2006-05-23
NSMutableIndexSet Class Reference (HTML) (PDF)
Describes a mutable collection of unique unsigned integers.
Cocoa Reference 2006-05-23
NSMutableURLRequest Class Reference (HTML) (PDF)
Describes a mutable request for a resource identified by a URL.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSNameSpecifier Class Reference (HTML) (PDF)
Describes the class used to specify an object in a collection (or container) by name.
Cocoa, Scripting & Automation Reference 2006-05-23
NSNull Class Reference (HTML) (PDF)
Describes an object that represents null.
Cocoa Reference 2006-05-23
NSObjCTypeSerializationCallBack Protocol Reference (HTML) (PDF)
Describes a deprecated technology.
Cocoa Reference 2006-05-23
NSParagraphStyle Class Reference (HTML) (PDF)
Describes an immutable paragraph style.
Cocoa, Text & Fonts Reference 2006-05-23
NSPlaceholders Protocol Reference (HTML) (PDF)
Describes the interface for providing default display values when a Cocoa bindings attribute returns a selection marker.
Cocoa Reference 2006-05-23
NSPreferencePane Class Reference (HTML) (PDF)
Defines the interface for subclasses to provide preference panes to System Preferences or other applications.
Cocoa, User Experience Reference 2006-05-23
NSPropertySpecifier Class Reference (HTML) (PDF)
Describes the class used to specify a simple attribute value, a one-to-one relationship, or all elements of a to-many relationship.
Cocoa, Scripting & Automation Reference 2006-05-23
NSProtocolChecker Class Reference (HTML) (PDF)
Describes an object that restricts the messages that can be sent to another object.
Cocoa Reference 2006-05-23
NSQuitCommand Class Reference (HTML) (PDF)
Describes the class used to quit the specified application.
Cocoa, Scripting & Automation Reference 2006-05-23
NSRandomSpecifier Class Reference (HTML) (PDF)
Describes the class used to specify an arbitrary object in a collection.
Cocoa, Scripting & Automation Reference 2006-05-23
NSRangeSpecifier Class Reference (HTML) (PDF)
Describes the class used to specify a range of objects in a container through two delimiting objects.
Cocoa, Scripting & Automation Reference 2006-05-23
NSRulerMarker Class Objective-C Reference (HTML) (PDF)
Describes a marker on a ruler, such as a tab setting.
Cocoa, Text & Fonts Reference 2006-05-23
NSRulerView Class Reference (HTML) (PDF)
Describes a ruler, with markers, that adjoins a scroll view's document view.
Cocoa, Text & Fonts Reference 2006-05-23
NSScriptCoercionHandler Class Reference (HTML) (PDF)
Describes the class that provides a mechanism for converting one kind of scripting data to another.
Cocoa, Scripting & Automation Reference 2006-05-23
NSScriptExecutionContext Class Reference (HTML) (PDF)
Describes the class that provides a shared instance of the context in which the current script command is executed.
Cocoa, Scripting & Automation Reference 2006-05-23
NSScriptingComparisonMethods Protocol Reference (HTML) (PDF)
Describes the informal protocol used to define a set of methods for comparing script objects.
Cocoa, Scripting & Automation Reference 2006-05-23
NSScriptObjectSpecifiers Protocol Reference (HTML) (PDF)
Describes the informal protocol used by scriptable objects to provide a fully specified object specifier to themselves.
Cocoa, Scripting & Automation Reference 2006-05-23
NSScriptWhoseTest Class Reference (HTML) (PDF)
Describes the abstract class used to represent expressions for testing scriptable object inclusion.
Cocoa, Scripting & Automation Reference 2006-05-23
NSScrollView Class Reference (HTML) (PDF)
Describes a view for displaying content larger than its bounds.
Cocoa, Graphics & Imaging, User Experience Reference 2006-05-23
NSSearchField Class Reference (HTML) (PDF)
Describes a text field optimized for entering a search query.
Cocoa, User Experience Reference 2006-05-23
NSSecureTextField Class Reference (HTML) (PDF)
Describes a text field that hides its text.
Cocoa, User Experience Reference 2006-05-23
NSSerializer Class Reference (HTML) (PDF)
Describes a deprecated technology replaced by the NSPropertyListSerialization class.
Cocoa Reference 2006-05-23
NSSetCommand Class Reference (HTML) (PDF)
Describes the class used to set values in a scriptable object.
Cocoa, Scripting & Automation Reference 2006-05-23
NSSimpleHorizontalTypesetter Class Reference (HTML) (PDF)
Deprecated - Describes the deprecated technology replaced by NSATSTypesetter.
Cocoa, Text & Fonts Reference 2006-05-23
NSSlider Class Reference (HTML) (PDF)
Describes a control for selecting a value from a continuous range of values.
Cocoa, User Experience Reference 2006-05-23
NSSliderCell Class Reference (HTML) (PDF)
Describes an action cell that provides appearance and behavior for an NSSlider object.
Cocoa, User Experience Reference 2006-05-23
NSStepper Class Reference (HTML) (PDF)
Describes a control that can increment and decrement a value.
Cocoa, User Experience Reference 2006-05-23
NSStepperCell Class Reference (HTML) (PDF)
Describes an action cell that provides appearance and behavior for an NSStepper object.
Cocoa, User Experience Reference 2006-05-23
NSTableHeaderCell Class Reference (HTML) (PDF)
Describes the user interface of a column header of a table view.
Cocoa, User Experience Reference 2006-05-23
NSTableHeaderView Class Reference (HTML) (PDF)
Describes a column header of a table view.
Cocoa, User Experience Reference 2006-05-23
NSTabView Class Reference (HTML) (PDF)
Describes a view that supports switching between subviews.
Cocoa, User Experience Reference 2006-05-23
NSTabViewItem Class Reference (HTML) (PDF)
Describes a single view in a tab view.
Cocoa, User Experience Reference 2006-05-23
NSTextAttachment Class Reference (HTML) (PDF)
Describes a text attachment for an attributed string.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextAttachmentCell Class Reference (HTML) (PDF)
Describes the user interface for a text attachment.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextAttachmentCell Protocol Reference (HTML) (PDF)
Describes the interface for drawing text attachments.
Cocoa Reference 2006-05-23
NSTextBlock Class Reference (HTML) (PDF)
Describes a block of text laid out in a subregion of a text container.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextContainer Class Reference (HTML) (PDF)
Describes an area where text is laid out.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextInput Protocol Reference (HTML) (PDF)
Descibes the formal protocol that text views implement to receive input from the user's keyboard and mouse.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextList Class Reference (HTML) (PDF)
Describes a section of text that forms a single list.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextStorage Class Reference (HTML) (PDF)
Describes the text storage system.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextTab Class Reference (HTML) (PDF)
Describes a tab in a paragraph style.
Cocoa, Text & Fonts Reference 2006-05-23
NSTextTableBlock Class Reference (HTML) (PDF)
Describes a block of text that appears as a cell within a table.
Cocoa, Text & Fonts Reference 2006-05-23
NSToolbarItemValidation Protocol Reference (HTML) (PDF)
Describes the interface for providing customized enabling and disabling of a toolbar item.
Cocoa, User Experience Reference 2006-05-23
NSToolTipOwner Protocol Reference (HTML) (PDF)
Describes the interface for receiving requests for tooltip text.
Cocoa, User Experience Reference 2006-05-23
NSUnarchiver Class Reference (HTML) (PDF)
Describes an object that extracts the contents of an archive created by NSArchiver.
Cocoa Reference 2006-05-23
NSUniqueIDSpecifier Class Reference (HTML) (PDF)
Describes the class used to specify an object in a container by unique ID.
Cocoa, Scripting & Automation Reference 2006-05-23
NSURL Additions Reference (HTML) (PDF)
Describes additions to support pasteboards.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSURLAuthenticationChallenge Class Reference (HTML) (PDF)
Describes a challenge from a server requiring authentication from the client.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSURLAuthenticationChallengeSender Protocol Reference (HTML) (PDF)
Describes the interface for receiving authentication challenges.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSURLCredentialStorage Class Reference (HTML) (PDF)
Describes a mapping of credentials to their corresponding protection spaces.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSURLDownload Class Reference (HTML) (PDF)
Describes a connection used to download data to a file.
Cocoa, Internet & Web, Networking Reference 2006-05-23
NSURLHandleClient Protocol Reference (HTML) (PDF)
Describes a deprecated technology replaced by the NSURLDownload class.
Cocoa, Internet & Web, Networking Reference 2006-05-23