CropAndStraightenViewDelegate

@available(iOS 9.0, *)
@objc(PESDKCropAndStraightenViewDelegate)
public protocol CropAndStraightenViewDelegate : AnyObject

The methods declared by the CropAndStraightenViewDelegate protocol allow the adopting delegate to respond to message from the CropAndStraightenView class and thus respond to operations such as tracking.