---
title: descriptor
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmetadatamachinereadablecodeobject/descriptor
---

# descriptor

A barcode description for use in Core Image.

## Declaration

```swift
var descriptor: CIBarcodeDescriptor? { get }
```

## See Also

### Getting machine-readable code values

- [corners](avfoundation/avmetadatamachinereadablecodeobject/corners-58qbe.md)
- [stringValue](avfoundation/avmetadatamachinereadablecodeobject/stringvalue.md)