Classes

NSActionCell
NSAlert
NSApplication
NSArrayController
NSBezierPath
NSBitmapImageRep
NSBox
NSBrowser
NSBrowserCell
NSButton
NSButtonCell
NSCachedImageRep
NSCell
NSClipView
NSCollectionView
NSCollectionViewItem
NSColor
NSColorList
NSColorPanel
NSColorPicker
NSColorWell
NSComboBox
NSComboBoxCell
NSControl
NSController
NSCursor
NSCustomImageRep
NSDataLink
NSDataLinkManager
NSDataLinkPanel
NSDatePicker
NSDatePickerCell
NSDocument
NSDocumentController
NSDrawer
NSDrawerDelegate
NSEPSImageRep
NSEvent
NSFont
NSFontDescriptor
NSFontManager
NSFontPanel
NSForm
NSFormCell
NSGraphicsContext
NSHelpManager
NSHelpPanel
NSImage
NSImageCell
NSImageRep
NSImageView
NSInputServer
NSMatrix
NSMenu
NSMenuItem
NSMenuItemCell
NSMenuView
NSMovie
NSMovieView
NSMutableParagraphStyle
NSNib
NSObjectController
NSOpenGLContext
NSOpenGLPixelFormat
NSOpenGLView
NSOpenPanel
NSOutlineView
NSPageLayout
NSPanel
NSParagraphStyle
NSPasteboard
NSPasteboardItem
NSPopUpButton
NSPopUpButtonCell
NSPredicateEditor
NSPredicateEditorRowTemplate
NSPrintInfo
NSPrintOperation
NSPrintPanel
NSPrinter
NSProgressIndicator
NSResponder
NSRuleEditor
NSRulerMarker
NSSavePanel
NSScreen
NSScrollView
NSScroller
NSSecureTextField
NSSecureTextFieldCell
NSSelection
NSSharingService
NSSharingServicePicker
NSSlider
NSSliderCell
NSSound
NSSpeechSynthesizer
NSSpellChecker
NSSplitView
NSStepper
NSStepperCell
NSTabView
NSTabViewItem
NSTableColumn
NSTableHeaderCell
NSTableHeaderView
NSTableView
NSText
NSTextAttachment
NSTextAttachmentCell
NSTextContainer
NSTextField
NSTextFieldCell
NSTextStorage
NSTextTab
NSTextView
NSTokenField
NSTokenFieldCell
NSUserDefaultsController
NSView
NSWindow
NSWindowController
NSWorkspace

Protocols

<GSImageDelegateProtocol>
<NSAlertDelegate>
<NSApplicationDelegate>
<NSBrowserDelegate>
<NSCollectionViewDataSource>
<NSCollectionViewDelegate>
<NSCollectionViewElement>
<NSCollectionViewPrefetching>
<NSComboBoxCellDataSource>
<NSComboBoxDataSource>
<NSComboBoxDelegate>
<NSControlTextEditingDelegate>
<NSInputServerMouseTracker>
<NSInputServiceProvider>
<NSMatrixDelegate>
<NSMenuDelegate>
<NSMenuItem>
<NSMenuValidation>
<NSMenuView>
<NSOpenSavePanelDelegate>
<NSOutlineViewDataSource>
<NSOutlineViewDelegate>
<NSPasteboardItemDataProvider>
<NSPasteboardReading>
<NSPasteboardWriting>
<NSPrintPanelAccessorizing>
<NSRuleEditorDelegate>
<NSSharingServiceDelegate>
<NSSharingServicePickerDelegate>
<NSSpeechSynthesizerDelegate>
<NSSplitViewDelegate>
<NSTabViewDelegate>
<NSTableViewDataSource>
<NSTableViewDelegate>
<NSTextAttachmentCell>
<NSTextFieldDelegate>
<NSTextViewDelegate>
<NSWindowDelegate>
(NSAlertDelegate)
(NSApplicationDelegate)
(NSBrowserDelegate)
(NSComboBoxCellDataSource)
(NSControlDelegate)
(NSControlTextEditingDelegate)
(NSDataLinkManagerDelegate)
(NSDataPickerCellDelegate)
(NSEditor)
(NSEditorRegistration)
(NSFontManagerDelegate)
(NSFontPanelValidation)
(NSMenuActionResponder)
(NSMenuDelegate)
(NSOpenSavePanelDelegate)
(NSPasteboardItemDataProvider)
(NSPasteboardOwner)
(NSPasteboardReading)
(NSPasteboardWriting)
(NSPlaceholder)
(NSSavePanelDelegate)
(NSServicesRequests)
(NSSoundDelegate)
(NSSpeechSynthesizerDelegate)
(NSSplitViewDelegate)
(NSTableDataSource)
(NSTableViewDelegate)
(NSTextDelegate)
(NSTextStorageDelegate)
(NSTextViewDelegate)
(NSWindowDelegate)
(NSWindowDelegateAdditions)

Constants

Functions

Macros

Types

Variables

Up

NSResponder

Authors

Scott Christley (scottc@net-community.com)

Date: Generated at 2025-07-12 14:18:56 +0000

Abstract class which is basis of command and event processing

Copyright: (C) 1996,1999 Free Software Foundation, Inc.


Contents -

  1. Software documentation for the NSResponder class
  2. Software documentation for the NSResponder(OptionalActionMethods) category

Software documentation for the NSResponder class

NSResponder : NSObject

Declared in:
AppKit/NSResponder.h
Availability: OpenStep

Description forthcoming.

Instance Variables

Method summary


acceptsFirstResponder 

- (BOOL) acceptsFirstResponder;
Availability: OpenStep

Returns YES if the receiver is able to become the first responder, NO otherwise.

becomeFirstResponder 

- (BOOL) becomeFirstResponder;
Availability: OpenStep

Description forthcoming.

doCommandBySelector: 

- (void) doCommandBySelector: (SEL)aSelector;
Availability: MacOS-X 10.0.0

Description forthcoming.

encodeWithCoder: 

- (void) encodeWithCoder: (NSCoder*)aCoder;
Availability: OpenStep

Description forthcoming.

flagsChanged: 

- (void) flagsChanged: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

flushBufferedKeyEvents 

- (void) flushBufferedKeyEvents;
Availability: MacOS-X 10.0.0

Description forthcoming.

helpRequested: 

- (void) helpRequested: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

initWithCoder: 

- (id) initWithCoder: (NSCoder*)aDecoder;
Availability: OpenStep

Description forthcoming.

insertText: 

- (void) insertText: (id)aString;
Availability: MacOS-X 10.0.0

Tells the receiver to insert the given string. In a text view the text is typically inserted at the insertion point, and replaces any selection.

Subclasses should override this method. The implementation in NSResponder just sends the message on to the next responder.

Normally, aString will be an NSString, but in some cases, it might be an NSAttributedString.


interfaceStyle 

- (NSInterfaceStyle) interfaceStyle;
Availability: MacOS-X 10.0.0

Description forthcoming.

interpretKeyEvents: 

- (void) interpretKeyEvents: (NSArray*)eventArray;
Availability: MacOS-X 10.0.0

Description forthcoming.

keyDown: 

- (void) keyDown: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

keyUp: 

- (void) keyUp: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

menu 

- (NSMenu*) menu;
Availability: MacOS-X 10.0.0

Description forthcoming.

mouseDown: 

- (void) mouseDown: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

mouseDragged: 

- (void) mouseDragged: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

mouseEntered: 

- (void) mouseEntered: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

mouseExited: 

- (void) mouseExited: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

mouseMoved: 

- (void) mouseMoved: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

mouseUp: 

- (void) mouseUp: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

nextResponder 

- (NSResponder*) nextResponder;
Availability: OpenStep

Description forthcoming.

noResponderFor: 

- (void) noResponderFor: (SEL)eventSelector;
Availability: OpenStep

Description forthcoming.

otherMouseDown: 

- (void) otherMouseDown: (NSEvent*)theEvent;
Availability: MacOS-X 10.0.0

Description forthcoming.

otherMouseDragged: 

- (void) otherMouseDragged: (NSEvent*)theEvent;
Availability: MacOS-X 10.0.0

Description forthcoming.

otherMouseUp: 

- (void) otherMouseUp: (NSEvent*)theEvent;
Availability: MacOS-X 10.0.0

Description forthcoming.

performKeyEquivalent: 

- (BOOL) performKeyEquivalent: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

performMnemonic: 

- (BOOL) performMnemonic: (NSString*)aString;
Availability: MacOS-X 10.0.0

Description forthcoming.

presentError: 

- (BOOL) presentError: (NSError*)error;
Availability: MacOS-X 10.4.0

Description forthcoming.

presentError: modalForWindow: delegate: didPresentSelector: contextInfo: 

- (void) presentError: (NSError*)error modalForWindow: (NSWindow*)window delegate: (id)delegate didPresentSelector: (SEL)sel contextInfo: (void*)context;
Availability: MacOS-X 10.4.0

Description forthcoming.

resignFirstResponder 

- (BOOL) resignFirstResponder;
Availability: OpenStep

Description forthcoming.

rightMouseDown: 

- (void) rightMouseDown: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

rightMouseDragged: 

- (void) rightMouseDragged: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

rightMouseUp: 

- (void) rightMouseUp: (NSEvent*)theEvent;
Availability: OpenStep

Description forthcoming.

scrollWheel: 

- (void) scrollWheel: (NSEvent*)theEvent;
Availability: MacOS-X 10.0.0

Description forthcoming.

setInterfaceStyle: 

- (void) setInterfaceStyle: (NSInterfaceStyle)aStyle;
Availability: MacOS-X 10.0.0

Description forthcoming.

setMenu: 

- (void) setMenu: (NSMenu*)aMenu;
Availability: MacOS-X 10.0.0

Description forthcoming.

setNextResponder: 

- (void) setNextResponder: (NSResponder*)aResponder;
Availability: OpenStep

Description forthcoming.

shouldBeTreatedAsInkEvent: 

- (BOOL) shouldBeTreatedAsInkEvent: (NSEvent*)theEvent;
Availability: MacOS-X 10.0.0

Description forthcoming.

tryToPerform: with: 

- (BOOL) tryToPerform: (SEL)anAction with: (id)anObject;
Availability: OpenStep

If the receiver responds to anAction, it performs that method with anObject as its argument, discards any return value, and return YES.
Otherwise, the next responder in the chain is asked to perform anAction and the result of that is returned.
If no responder in the chain is able to respond to anAction, then NO is returned.

undoManager 

- (NSUndoManager*) undoManager;
Availability: MacOS-X 10.0.0

Description forthcoming.

validRequestorForSendType: returnType: 

- (id) validRequestorForSendType: (NSString*)typeSent returnType: (NSString*)typeReturned;
Availability: OpenStep

Description forthcoming.

willPresentError: 

- (NSError*) willPresentError: (NSError*)error;
Availability: MacOS-X 10.4.0

Description forthcoming.



Instance Variables for NSResponder Class

_interface_style

@protected int _interface_style;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.

_next_responder

@protected NSResponder* _next_responder;
Availability: OpenStep

Warning the underscore at the start of the name of this instance variable indicates that, even though it is not technically private, it is intended for internal use within the package, and you should not use the variable in other code.




Software documentation for the NSResponder(OptionalActionMethods) category

NSResponder(OptionalActionMethods)

Declared in:
AppKit/NSResponder.h
Availability: MacOS-X 10.0.0

Description forthcoming.

Method summary


cancelOperation: 

- (void) cancelOperation: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

capitalizeWord: 

- (void) capitalizeWord: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

centerSelectionInVisibleArea: 

- (void) centerSelectionInVisibleArea: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

changeCaseOfLetter: 

- (void) changeCaseOfLetter: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

complete: 

- (void) complete: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteBackward: 

- (void) deleteBackward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteBackwardByDecomposingPreviousCharacter: 

- (void) deleteBackwardByDecomposingPreviousCharacter: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

deleteForward: 

- (void) deleteForward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteToBeginningOfLine: 

- (void) deleteToBeginningOfLine: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteToBeginningOfParagraph: 

- (void) deleteToBeginningOfParagraph: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteToEndOfLine: 

- (void) deleteToEndOfLine: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteToEndOfParagraph: 

- (void) deleteToEndOfParagraph: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteToMark: 

- (void) deleteToMark: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteWordBackward: 

- (void) deleteWordBackward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

deleteWordForward: 

- (void) deleteWordForward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

indent: 

- (void) indent: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

insertBacktab: 

- (void) insertBacktab: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

insertContainerBreak: 

- (void) insertContainerBreak: (id)sender;
Availability: MacOS-X 10.4.0

Description forthcoming.

insertLineBreak: 

- (void) insertLineBreak: (id)sender;
Availability: MacOS-X 10.4.0

Description forthcoming.

insertNewline: 

- (void) insertNewline: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

insertNewlineIgnoringFieldEditor: 

- (void) insertNewlineIgnoringFieldEditor: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

insertParagraphSeparator: 

- (void) insertParagraphSeparator: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

insertTab: 

- (void) insertTab: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

insertTabIgnoringFieldEditor: 

- (void) insertTabIgnoringFieldEditor: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

lowercaseWord: 

- (void) lowercaseWord: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveBackward: 

- (void) moveBackward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveBackwardAndModifySelection: 

- (void) moveBackwardAndModifySelection: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveDown: 

- (void) moveDown: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveDownAndModifySelection: 

- (void) moveDownAndModifySelection: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveForward: 

- (void) moveForward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveForwardAndModifySelection: 

- (void) moveForwardAndModifySelection: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveLeft: 

- (void) moveLeft: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveLeftAndModifySelection: 

- (void) moveLeftAndModifySelection: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

moveRight: 

- (void) moveRight: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveRightAndModifySelection: 

- (void) moveRightAndModifySelection: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

moveToBeginningOfDocument: 

- (void) moveToBeginningOfDocument: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveToBeginningOfLine: 

- (void) moveToBeginningOfLine: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveToBeginningOfParagraph: 

- (void) moveToBeginningOfParagraph: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveToEndOfDocument: 

- (void) moveToEndOfDocument: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveToEndOfLine: 

- (void) moveToEndOfLine: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveToEndOfParagraph: 

- (void) moveToEndOfParagraph: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveUp: 

- (void) moveUp: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveUpAndModifySelection: 

- (void) moveUpAndModifySelection: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveWordBackward: 

- (void) moveWordBackward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveWordBackwardAndModifySelection: 

- (void) moveWordBackwardAndModifySelection: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveWordForward: 

- (void) moveWordForward: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveWordForwardAndModifySelection: 

- (void) moveWordForwardAndModifySelection: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

moveWordLeft: 

- (void) moveWordLeft: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

moveWordLeftAndModifySelection: 

- (void) moveWordLeftAndModifySelection: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

moveWordRight: 

- (void) moveWordRight: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

moveWordRightAndModifySelection: 

- (void) moveWordRightAndModifySelection: (id)sender;
Availability: MacOS-X 10.3.0

Description forthcoming.

pageDown: 

- (void) pageDown: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

pageUp: 

- (void) pageUp: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

scrollLineDown: 

- (void) scrollLineDown: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

scrollLineUp: 

- (void) scrollLineUp: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

scrollPageDown: 

- (void) scrollPageDown: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

scrollPageUp: 

- (void) scrollPageUp: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

scrollToBeginningOfDocument: 

- (void) scrollToBeginningOfDocument: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

scrollToEndOfDocument: 

- (void) scrollToEndOfDocument: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

selectAll: 

- (void) selectAll: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

selectLine: 

- (void) selectLine: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

selectParagraph: 

- (void) selectParagraph: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

selectToMark: 

- (void) selectToMark: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

selectWord: 

- (void) selectWord: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

setMark: 

- (void) setMark: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

showContextHelp: 

- (void) showContextHelp: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

swapWithMark: 

- (void) swapWithMark: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

tabletPoint: 

- (void) tabletPoint: (NSEvent*)event;
Availability: MacOS-X 10.4.0

Description forthcoming.

tabletProximity: 

- (void) tabletProximity: (NSEvent*)event;
Availability: MacOS-X 10.4.0

Description forthcoming.

transpose: 

- (void) transpose: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

transposeWords: 

- (void) transposeWords: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

uppercaseWord: 

- (void) uppercaseWord: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.

yank: 

- (void) yank: (id)sender;
Availability: MacOS-X 10.0.0

Description forthcoming.


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