@interface BWTrackedSurface : NSObject @property (readonly, nonatomic) struct __IOSurface { } *surface; @property (readonly, nonatomic) id /* block */ handler; @property (nonatomic) int clientUseCount; @property (nonatomic) BOOL owningPixelBufferDeallocated; - (void)dealloc; - (id)initWithSurface:(struct __IOSurface { } *)a0 handler:(id /* block */)a1; @end