System/Library/Frameworks/AVKit.framework
AVDisplayLink.h
@class CADisplayLink;
@interface AVDisplayLink : NSObject
@property (copy, nonatomic) id /* block */ linkFired;
@property (retain, nonatomic) CADisplayLink *displayLink;
@property (weak, nonatomic) id observer;
@property (nonatomic) double startTime;
@property (readonly, nonatomic) double runningTime;
- (void)invalidate;
- (void).cxx_destruct;
- (void)linkFired:(id)a0;
- (void)startDisplayLinkUpdatesForObserver:(id)a0 framesPerSecond:(long long)a1 usingBlock:(id /* block */)a2;
@end