Data Capture Context Frame Listener

Defined in framework ScanditCaptureCore

DataCaptureContextFrameListener

protocol DataCaptureContextFrameListener : NSObjectProtocol

Added in version 6.0.0

Interface for observing/listening to frame processing related events of a data capture context.

To observe changes of the data capture context’s frame processing, one or more DataCaptureContextFrameListener may be added. These listeners provide hooks into different parts of the data capture context.

Frame processing only happens if at least one DataCaptureMode is added.

context

open func context(_ context: DataCaptureContext, willProcessFrame frame: any FrameData) -> Void

Added in version 6.0.0

Called when a frame will be processed.

context

open func context(_ context: DataCaptureContext, didProcessFrame frame: any FrameData) -> Void

Added in version 6.0.0

Called when a frame has been processed.