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# HIDVirtualDevice.Properties

The properties for a virtual HID device.

```
struct Properties
```

## Overview

A virtual device has many properties, required and optional, that determine or alter its functionality. Use this class to provide these properties during the creation of a virtual device.

Uncommon properties that aren’t available can be specified in the `extraProperties` parameter of [`init(descriptor:vendorID:productID:transport:product:manufacturer:modelNumber:versionNumber:serialNumber:uniqueID:locationID:localizationCode:extraProperties:)`](/documentation/CoreHID/HIDVirtualDevice/Properties/init(descriptor:vendorID:productID:transport:product:manufacturer:modelNumber:versionNumber:serialNumber:uniqueID:locationID:localizationCode:extraProperties:)).

## Topics

### Initializers

[`init(descriptor: Data, vendorID: UInt32, productID: UInt32?, transport: HIDDeviceTransport?, product: String?, manufacturer: String?, modelNumber: String?, versionNumber: UInt64?, serialNumber: String?, uniqueID: String?, locationID: UInt64?, localizationCode: HIDDeviceLocalizationCode?, extraProperties: Dictionary<String, AnyObject>?)`](/documentation/CoreHID/HIDVirtualDevice/Properties/init(descriptor:vendorID:productID:transport:product:manufacturer:modelNumber:versionNumber:serialNumber:uniqueID:locationID:localizationCode:extraProperties:))

Creates a set of properties for a virtual device.

### Instance Properties

[`let descriptor: Data`](/documentation/CoreHID/HIDVirtualDevice/Properties/descriptor)

The HID specification compliant report descriptor for the virtual device.

[`let localizationCode: HIDDeviceLocalizationCode?`](/documentation/CoreHID/HIDVirtualDevice/Properties/localizationCode)

A device localization code that specifies the HID compliant localization code.

[`let locationID: UInt64?`](/documentation/CoreHID/HIDVirtualDevice/Properties/locationID)

The location ID for the device.

[`let manufacturer: String?`](/documentation/CoreHID/HIDVirtualDevice/Properties/manufacturer)

The manufacturer of the device.

[`let modelNumber: String?`](/documentation/CoreHID/HIDVirtualDevice/Properties/modelNumber)

The model number for the device.

[`let product: String?`](/documentation/CoreHID/HIDVirtualDevice/Properties/product)

The product name for the device.

[`let productID: UInt32?`](/documentation/CoreHID/HIDVirtualDevice/Properties/productID)

The product ID for the device.

[`let serialNumber: String?`](/documentation/CoreHID/HIDVirtualDevice/Properties/serialNumber)

The serial number for the device.

[`let transport: HIDDeviceTransport?`](/documentation/CoreHID/HIDVirtualDevice/Properties/transport)

The data transport for the device.

[`let uniqueID: String?`](/documentation/CoreHID/HIDVirtualDevice/Properties/uniqueID)

A unique ID for the device.

[`let vendorID: UInt32`](/documentation/CoreHID/HIDVirtualDevice/Properties/vendorID)

The vendor ID for the device.

[`let versionNumber: UInt64?`](/documentation/CoreHID/HIDVirtualDevice/Properties/versionNumber)

The version of the device.

## Relationships

### Conforms To

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

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

---

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