<!--
{
  "availability" : [
    "macOS: 15.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "MediaExtension",
  "identifier" : "/documentation/MediaExtension/MERAWProcessingParameter/ListElement",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "MediaExtension"
    ],
    "preciseIdentifier" : "c:objc(cs)MERAWProcessingListElementParameter"
  },
  "title" : "MERAWProcessingParameter.ListElement"
}
-->

# MERAWProcessingParameter.ListElement

An object that describes a list element parameter of a RAW processor.

```
class ListElement
```

## Overview

The `MERAWProcessingParameterListElement` protocol provides an interface for `VideoToolbox` to query descriptions of the different elements in a parameter list for a list element in a `MERAWProcessingParameter`.  A distinct `MERAWProcessingParameterListElement` is created for each list element.

## Topics

### Creating a list element parameter object

[`-  initWithName:description:elementID:`](/documentation/MediaExtension/MERAWProcessingParameter/ListElement/init(name:description:elementID:))

Creates a list element parameter object with the element id value.

### Properties

[`listElementID`](/documentation/MediaExtension/MERAWProcessingParameter/ListElement/listElementID)

A unique number in the list which represents this list option.

## Relationships

### Conforms To

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

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

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

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

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

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

### Inherits From

[`MERAWProcessingParameter`](/documentation/MediaExtension/MERAWProcessingParameter)

---

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)