Developer's Documentation for free mobile OCR SDK

Documentation Menu

RTRDataCaptureService protocol

A background data capture service protocol. Inherits from the RTRRecognitionService protocol.

This protocol is adopted by the data capture service object returned by the createDataCaptureServiceWithDelegate:profile: method. Its methods are used to tune the processing settings, pass video frames from the camera to the background processing engine, and release the resources afterwards.

The data capture service requires a delegate that conforms to the RTRDataCaptureServiceDelegate protocol. The service informs the delegate when the result is ready, sends progress information, warnings and errors.




- addSampleBuffer:

Sends the video frame obtained from camera to the service. Inherited from the RTRRecognitionService protocol.

- configureDataCaptureProfile

Creates a profile builder object with which you will be able to configure the data capture service to recognize fields of a specific type.

- setAreaOfInterest:

Sets the search area on the frame. Inherited from the RTRRecognitionService protocol.

- stopTasks

Stops processing and releases the resources used by the service. Inherited from the RTRRecognitionService protocol.