---
title: "RequestDescriptor.detectBarcodesRequest(_:)"
framework: vision
role: symbol
role_heading: Case
path: "vision/requestdescriptor/detectbarcodesrequest(_:)"
---

# RequestDescriptor.detectBarcodesRequest(_:)

A descriptor that describes a detect barcodes request.

## Declaration

```swift
case detectBarcodesRequest(DetectBarcodesRequest.Revision)
```

## See Also

### Getting the optical flow, rectangle and barcode detection descriptor

- [RequestDescriptor.trackOpticalFlowRequest(_:)](vision/requestdescriptor/trackopticalflowrequest(_:).md)
- [RequestDescriptor.detectRectanglesRequest(_:)](vision/requestdescriptor/detectrectanglesrequest(_:).md)