---
title: DetectBarcodesRequest
framework: vision
role: symbol
role_heading: Structure
path: vision/detectbarcodesrequest
---

# DetectBarcodesRequest

A request that detects barcodes in an image.

## Declaration

```swift
struct DetectBarcodesRequest
```

## Overview

Overview This request generates a collection of BarcodeObservation objects that describe each barcode the request detects.

## Topics

### Creating a request

- [init(_:)](vision/detectbarcodesrequest/init(_:).md)

### Performing a request

- [perform(on:orientation:)](vision/imageprocessingrequest/perform(on:orientation:)-80bya.md)
- [perform(on:orientation:)](vision/imageprocessingrequest/perform(on:orientation:)-3f3f1.md)
- [perform(on:orientation:)](vision/imageprocessingrequest/perform(on:orientation:)-qxxx.md)
- [perform(on:orientation:)](vision/imageprocessingrequest/perform(on:orientation:)-xspx.md)
- [perform(on:orientation:)](vision/imageprocessingrequest/perform(on:orientation:)-3hddl.md)
- [perform(on:orientation:)](vision/imageprocessingrequest/perform(on:orientation:)-85ex1.md)

### Understanding the result

- [BarcodeObservation](vision/barcodeobservation.md)

### Configuring a request

- [symbologies](vision/detectbarcodesrequest/symbologies.md)
- [supportedSymbologies](vision/detectbarcodesrequest/supportedsymbologies.md)
- [BarcodeSymbology](vision/barcodesymbology.md)
- [coalescesCompositeSymbologies](vision/detectbarcodesrequest/coalescescompositesymbologies.md)

### Getting the revision

- [revision](vision/detectbarcodesrequest/revision-swift.property.md)
- [supportedRevisions](vision/detectbarcodesrequest/supportedrevisions.md)
- [DetectBarcodesRequest.Revision](vision/detectbarcodesrequest/revision-swift.enum.md)

## Relationships

### Conforms To

- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [ImageProcessingRequest](vision/imageprocessingrequest.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [VisionRequest](vision/visionrequest.md)

## See Also

### Text and document analysis

- [Locating and displaying recognized text](vision/locating-and-displaying-recognized-text.md)
- [Recognizing tables within a document](vision/recognize-tables-within-a-document.md)
- [DetectDocumentSegmentationRequest](vision/detectdocumentsegmentationrequest.md)
- [DetectTextRectanglesRequest](vision/detecttextrectanglesrequest.md)
- [RecognizeDocumentsRequest](vision/recognizedocumentsrequest.md)
- [RecognizeTextRequest](vision/recognizetextrequest.md)