Text Capture

Defined in framework ScanditTextCapture

SDCTextCapture
@interface SDCTextCapture : NSObject <SDCDataCaptureMode>

Added in version 6.1.0

Capture mode for reading text.

+ textCaptureWithContext:settings:
+ (instancetype)textCaptureWithContext:(nullable SDCDataCaptureContext *)context
                              settings:(nonnull SDCTextCaptureSettings *)settings

Added in version 6.1.0

Construct a new text capture mode with the provided context and settings. Then the context is not nil, the capture mode is automatically added to the context.

+ textCaptureFromJSONString:context:error:
+ (nullable instancetype)textCaptureFromJSONString:(nonnull NSString *)JSONString
                                           context:(nonnull SDCDataCaptureContext *)context
                                             error:(NSError **)error

Added in version 6.3.0

Construct a new text capture mode with the provided JSON serialization. See Serialization for details. The capture mode is automatically added to the context.

enabled
@property (nonatomic, assign, getter=isEnabled) BOOL enabled

Added in version 6.1.0

Implemented from SDCDataCaptureMode. See SDCDataCaptureMode.enabled.

pointOfInterest
@property (nonatomic, assign) SDCPointWithUnit pointOfInterest

Added in version 6.1.0

The point of interest overwriting the point of interest of the data capture view. By default, this overwriting point of interest is not set and the one from the data capture view is used.

Use SDCPointWithUnitNull (FloatWithUnit.null in Swift) to unset the point of interest.

The overwriting point of interest is used to control the center of attention for the following subsystems:

  • Location selection. When no location selection is set, the point of interest defines the location at which the recognition optimizes for reading barcodes.

  • Rendered viewfinders.

- applySettings:completionHandler:
- (void)applySettings:(nonnull SDCTextCaptureSettings *)settings
    completionHandler:(nullable void (^)(void))completionHandler

Added in version 6.1.0

Asynchronously apply the new settings to the text capture mode. If text capture is currently running, the task will complete when the next frame is processed, and will use the new settings for that frame. If text capture is currently not running, the task will complete as soon as the settings have been stored and won’t wait until the next frame is going to be processed.

feedback
@property (nonatomic, strong, nonnull) SDCTextCaptureFeedback *feedback

Added in version 6.1.0

Instance of SDCTextCaptureFeedback that is used by text capture to notify users about Success events.

The default instance of the Feedback will have both sound and vibration enabled. A default beep sound will be used for the sound.

To change the feedback emitted, the SDCTextCaptureFeedback can be modified as shown below, or a new one can be assigned.

let textCapture: TextCapture = ...
textCapture.feedback.success = Feedback(vibration: nil, sound: Sound.default)
- addListener:
- (void)addListener:(nonnull id<SDCTextCaptureListener>)listener

Added in version 6.1.0

Add the listener to observe this text capture instance.

In case the same listener is already observing this instance, calling this method will not add the listener again. The listener is stored using a weak reference and must thus be retained by the caller for it to not go out of scope.

- removeListener:
- (void)removeListener:(nonnull id<SDCTextCaptureListener>)listener

Added in version 6.1.0

Remove a previously added listener from this text capture instance.

In case the listener is not currently observing this instance, calling this method has no effect.

recommendedCameraSettings
@property (class, nonatomic, nonnull, readonly) SDCCameraSettings *recommendedCameraSettings

Added in version 6.1.0

Returns the recommended camera settings for use with text capture.

context
@property (nonatomic, nullable, readonly) SDCDataCaptureContext *context

Added in version 6.1.0

Implemented from SDCDataCaptureMode. See SDCDataCaptureMode.context.

- updateFromJSONString:error:
- (BOOL)updateFromJSONString:(nonnull NSString *)JSONString
                       error:(NSError **)error

Added in version 6.3.0

Updates the mode according to a JSON serialization. See Serialization for details.