<!--
{
  "availability" : [
    "iOS: 18.0.0 -",
    "iPadOS: 18.0.0 -",
    "macCatalyst: 15.0.0 -",
    "macOS: 12.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/AVCaptionRegion/WritingMode-swift.enum",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "AVFoundation"
    ],
    "preciseIdentifier" : "c:@E@AVCaptionRegionWritingMode"
  },
  "title" : "AVCaptionRegion.WritingMode"
}
-->

# AVCaptionRegion.WritingMode

Constants that indicate the writing mode for a region.

```
enum WritingMode
```

## Topics

### Writing modes

[`case leftToRightAndTopToBottom`](/documentation/AVFoundation/AVCaptionRegion/WritingMode-swift.enum/leftToRightAndTopToBottom)

A left-to-right and top-to-bottom writing mode.

[`case topToBottomAndRightToLeft`](/documentation/AVFoundation/AVCaptionRegion/WritingMode-swift.enum/topToBottomAndRightToLeft)

A top-to-bottom and right-to-left writing mode.

### Initializers

[`init?(rawValue: Int)`](/documentation/AVFoundation/AVCaptionRegion/WritingMode-swift.enum/init(rawValue:))

## Relationships

### Conforms To

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

[`Sendable`](/documentation/Swift/Sendable)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)