This class represents a user's monitor, and allows clients to ascertain properties of the display such as width and height in pixels, or color bit-depth. This class works only in the presence of an instance of NSApplication; NSScreen requires that an application have a connection to the window server to obtain information about the screen, which is provided by NSApplication.

@interface NSScreen : NSObject
// Convenience Constructors
+ (NSArray *)screens;
// Class Methods
+ (NSScreen *)deepestScreen;
+ (NSScreen *)mainScreen;
// Instance Methods
- (NSWindowDepth)depth;
- (NSDictionary *)deviceDescription;
- (NSRect)frame;
- (const NSWindowDepth *)supportedWindowDepths;
- (NSRect)visibleFrame;