---
title: "init(recognizedDataTypes:qualityLevel:recognizesMultipleItems:isHighFrameRateTrackingEnabled:isPinchToZoomEnabled:isGuidanceEnabled:isHighlightingEnabled:)"
framework: visionkit
role: symbol
role_heading: Initializer
path: "visionkit/datascannerviewcontroller/init(recognizeddatatypes:qualitylevel:recognizesmultipleitems:ishighframeratetrackingenabled:ispinchtozoomenabled:isguidanceenabled:ishighlightingenabled:)"
---

# init(recognizedDataTypes:qualityLevel:recognizesMultipleItems:isHighFrameRateTrackingEnabled:isPinchToZoomEnabled:isGuidanceEnabled:isHighlightingEnabled:)

Creates a scanner for finding data, such as text and machine-readable codes, in the camera’s live video.

## Declaration

```swift
@MainActor init(recognizedDataTypes: Set<DataScannerViewController.RecognizedDataType>, qualityLevel: DataScannerViewController.QualityLevel = .balanced, recognizesMultipleItems: Bool = false, isHighFrameRateTrackingEnabled: Bool = true, isPinchToZoomEnabled: Bool = true, isGuidanceEnabled: Bool = true, isHighlightingEnabled: Bool = false)
```

## Parameters

- `recognizedDataTypes`: The types of data that the data scanner identifies in the live video.
- `qualityLevel`: The level of resolution to scan that depends on the size of the items.
- `recognizesMultipleItems`: A Boolean value that indicates whether the scanner identifies all items in the live video.
- `isHighFrameRateTrackingEnabled`: A Boolean value that determines the frequency that the scanner updates the geometry of recognized items.
- `isPinchToZoomEnabled`: A Boolean value that indicates whether people can use a two-finger pinch-to-zoom gesture.
- `isGuidanceEnabled`: A Boolean value that indicates whether the scanner provides help to a person when selecting items.
- `isHighlightingEnabled`: A Boolean value that indicates whether the scanner displays highlights around recognized items.

## See Also

### Related Documentation

- [qualityLevel](visionkit/datascannerviewcontroller/qualitylevel-swift.property.md)
- [recognizesMultipleItems](visionkit/datascannerviewcontroller/recognizesmultipleitems.md)
- [isHighFrameRateTrackingEnabled](visionkit/datascannerviewcontroller/ishighframeratetrackingenabled.md)
- [isGuidanceEnabled](visionkit/datascannerviewcontroller/isguidanceenabled.md)

### Creating data scanners

- [recognizedDataTypes](visionkit/datascannerviewcontroller/recognizeddatatypes.md)
- [DataScannerViewController.RecognizedDataType](visionkit/datascannerviewcontroller/recognizeddatatype.md)