<!--
{
  "availability" : [
    "macOS: 15.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreHID",
  "identifier" : "/documentation/CoreHID/HIDVirtualDevice/init(properties:)",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "Core HID"
    ],
    "preciseIdentifier" : "s:7CoreHID16HIDVirtualDeviceC10propertiesACSgAC10PropertiesV_tcfc"
  },
  "title" : "init(properties:)"
}
-->

# init(properties:)

Creates a virtual HID device.

```
init?(properties: HIDVirtualDevice.Properties)
```

## Parameters

`properties`

The [`HIDVirtualDevice.Properties`](/documentation/CoreHID/HIDVirtualDevice/Properties) for the virtual device. These values determine the device functionality.

## Discussion

[`HIDVirtualDevice`](/documentation/CoreHID/HIDVirtualDevice) is created in an inactive state, notifications won’t be received and many functions won’t run until [`activate(delegate:)`](/documentation/CoreHID/HIDVirtualDevice/activate(delegate:)) has run successfully.

---

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)