<!--
{
  "availability" : [
    "DriverKit: 27.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "VideoDriverKit",
  "identifier" : "/documentation/VideoDriverKit/IOUserVideoSelectorControl/GetControlValueDescriptions",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "VideoDriverKit"
    ],
    "preciseIdentifier" : "c:@S@IOUserVideoSelectorControl@F@GetControlValueDescriptions#*$@S@IOUserVideoSelectorValueDescription#l#"
  },
  "title" : "GetControlValueDescriptions"
}
-->

# GetControlValueDescriptions

Gets the selector values for the control.

```
size_t GetControlValueDescriptions(IOUserVideoSelectorValueDescription *out_control_value_descriptions, size_t in_num_value_descriptions);
```

## Parameters

`out_control_value_descriptions`

Pointer to an array of IOUserVideoSelectorValueDescriptions

`in_num_value_descriptions`

size_t for the number of values to store into out_control_values.

## Return Value

size_t of number of values written to out_control_values.

## Discussion

The object’s work queue synchronizes access to the selector control value description.

---

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)