This NSView subclass provides a way to display pages of views that can be selected by tabs identifying each view. The pages of a tab view are actually instances of the class NSTabViewItem, which is a small class that keeps the tab view, page view, and related information to presenting it in the tab view.

@interface NSTabView : NSView
// Accessor Methods
- (void)setAllowsTruncatedLabels:(BOOL)allowTruncatedLabels;
- (BOOL)allowsTruncatedLabels;
- (void)setDelegate:(id)anObject;
- (id)delegate;
- (void)setTabViewType:(NSTabViewType)tabViewType;
- (NSTabViewType)tabViewType;
- (void)setFont:(NSFont *)font;
- (NSFont *)font;
- (void)setControlSize:(NSControlSize)controlSize;
- (NSControlSize)controlSize;
- (void)setDrawsBackground:(BOOL)flag;
- (BOOL)drawsBackground;
- (void)setControlTint:(NSControlTint)controlTint;
- (NSControlTint)controlTint;
// Instance Methods
- (void)addTabViewItem:(NSTabViewItem *)tabViewItem;
- (int)indexOfTabViewItemWithIdentifier:(id)identifier;
- (int)indexOfTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)insertTabViewItem:(NSTabViewItem *)tabViewItem atIndex:(int)index;
- (NSSize)minimumSize;
- (int)numberOfTabViewItems;
- (void)removeTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)selectFirstTabViewItem:(id)sender;
- (void)selectLastTabViewItem:(id)sender;
- (void)selectNextTabViewItem:(id)sender;
- (void)selectPreviousTabViewItem:(id)sender;
- (void)selectTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)selectTabViewItemAtIndex:(int)index;
- (void)selectTabViewItemWithIdentifier:(id)identifier;
- (NSTabViewItem *)selectedTabViewItem;
- (NSTabViewItem *)tabViewItemAtIndex:(int)index;
- (NSTabViewItem *)tabViewItemAtPoint:(NSPoint)point;
- (NSArray *)tabViewItems;
- (void)takeSelectedTabViewItemFromSender:(id)sender;
- (NSRect)contentRect;
// Methods Implemented by the Delegate
- (void)tabView:(NSTabView *)tabView didSelectTabViewItem:(NSTabViewItem *)tabViewItem;
- (BOOL)tabView:(NSTabView *)tabView shouldSelectTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)tabView:(NSTabView *)tabView willSelectTabViewItem:(NSTabViewItem *)tabViewItem;
- (void)tabViewDidChangeNumberOfTabViewItems:(NSTabView *)TabView;