This class implements a pop-up button interface component. A pop-up button is a button that displays a menu when it is activated; the displayed menu can either be a pop-up menu that appears beneath the mouse cursor, or a pull-down menu that is drawn below the button.

@interface NSPopUpButton : NSButton
// Initializers
- (id)initWithFrame:(NSRect)buttonFrame pullsDown:(BOOL)flag;
// Accessor Methods
- (void)setPullsDown:(BOOL)flag;
- (BOOL)pullsDown;
- (void)setTitle:(NSString *)aString;
- (void)setAutoenablesItems:(BOOL)flag;
- (BOOL)autoenablesItems;
- (void)setPreferredEdge:(NSRectEdge)edge;
- (NSRectEdge)preferredEdge;
- (void)setMenu:(NSMenu *)menu;
- (NSMenu *)menu;
// Instance Methods
- (void)addItemWithTitle:(NSString *)title;
- (void)addItemsWithTitles:(NSArray *)itemTitles;
- (int)indexOfItem:(id <NSMenuItem>)item;
- (int)indexOfItemWithRepresentedObject:(id)obj;
- (int)indexOfItemWithTag:(int)tag;
- (int)indexOfItemWithTarget:(id)target andAction:(SEL)actionSelector;
- (int)indexOfItemWithTitle:(NSString *)title;
- (int)indexOfSelectedItem;
- (void)insertItemWithTitle:(NSString *)title atIndex:(int)index;
- (NSArray *)itemArray;
- (id <NSMenuItem>)itemAtIndex:(int)index;
- (NSString *)itemTitleAtIndex:(int)index;
- (NSArray *)itemTitles;
- (id <NSMenuItem>)itemWithTitle:(NSString *)title;
- (id <NSMenuItem>)lastItem;
- (int)numberOfItems;
- (void)removeAllItems;
- (void)removeItemAtIndex:(int)index;
- (void)removeItemWithTitle:(NSString *)title;
- (void)selectItem:(id <NSMenuItem>)item;
- (void)selectItemAtIndex:(int)index;
- (void)selectItemWithTitle:(NSString *)title;
- (id <NSMenuItem>)selectedItem;
- (void)synchronizeTitleAndSelectedItem;
- (NSString *)titleOfSelectedItem;
// Notifications
NSPopUpButtonWillPopUpNotification;