---
title: "init(dictionary:)"
framework: coremediaio
role: symbol
role_heading: Initializer
path: "coremediaio/cmioextensiondeviceproperties/init(dictionary:)"
---

# init(dictionary:)

Creates a properties object with a dictionary of property states.

## Declaration

```swift
init(dictionary propertiesDictionary: [CMIOExtensionProperty : CMIOExtensionPropertyState<AnyObject>])
```

## Parameters

- `propertiesDictionary`: The dictionary of properties and their states.