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# XUserUnregisterForDefaultAudioEndpointUtf16Changed

> XUserUnregisterForDefaultAudioEndpointUtf16Changed

# XUserUnregisterForDefaultAudioEndpointUtf16Changed

Unregisters a previously-registered default audio endpoint change callback.

## Syntax

```cpp theme={null}
bool XUserUnregisterForDefaultAudioEndpointUtf16Changed(  
         XTaskQueueRegistrationToken token,  
         bool wait  
)  
```

### Parameters

*token*   \
Type: [XTaskQueueRegistrationToken](/reference/system/xtaskqueue/structs/xtaskqueueregistrationtoken)

The token that the [XUserRegisterForDefaultAudioEndpointUtf16Changed](/reference/system/xuser/functions/xuserregisterfordefaultaudioendpointutf16changed) function returns when registering the callback.

*wait*   \
Type: bool

Set to **true** to wait until the callback registers. Set to **false** to return immediately.

### Return value

Type: bool

Returns **true** if the callback successfully unregisters; **false** otherwise.

## Remarks

<Note>This function isn't safe to call on a time-sensitive thread. For more information, see [Time-sensitive threads](https://learn.microsoft.com/gaming/gdk/docs/gdk-dev/console-dev/overviews/threads/time-sensitive-threads).</Note>

[XUserDefaultAudioEndpointUtf16ChangedCallback](/reference/system/xuser/functions/xuserdefaultaudioendpointutf16changedcallback) is a callback function that an application invokes when the default audio endpoint for a specific user changes.

To register a callback that invokes when the default audio endpoint changes, call [XUserRegisterForDefaultAudioEndpointUtf16Changed](/reference/system/xuser/functions/xuserregisterfordefaultaudioendpointutf16changed).

To register a callback for user device association change events, call [XUserRegisterForDeviceAssociationChanged](/reference/system/xuser/functions/xuserregisterfordeviceassociationchanged).

## Requirements

**Header:** XUser.h

**Library:** xgameruntime.lib

**Supported platforms:** Windows, XBOX One family consoles and XBOX Series consoles

## Conceptual documentation

* [Time-sensitive threads](https://learn.microsoft.com/gaming/gdk/docs/gdk-dev/console-dev/overviews/threads/time-sensitive-threads)

## See also

[XUser](/reference/system/xuser/xuser_members)\
[XUserDefaultAudioEndpointUtf16ChangedCallback](/reference/system/xuser/functions/xuserdefaultaudioendpointutf16changedcallback)\
[XUserRegisterForDefaultAudioEndpointUtf16Changed](/reference/system/xuser/functions/xuserregisterfordefaultaudioendpointutf16changed)


## Related topics

- [XUserDefaultAudioEndpointUtf16ChangedCallback](/reference/system/xuser/functions/xuserdefaultaudioendpointutf16changedcallback.md)
- [XUserRegisterForDefaultAudioEndpointUtf16Changed](/reference/system/xuser/functions/xuserregisterfordefaultaudioendpointutf16changed.md)
- [XUserGetDefaultAudioEndpointUtf16](/reference/system/xuser/functions/xusergetdefaultaudioendpointutf16.md)
- [XUserUnregisterForDeviceAssociationChanged](/reference/system/xuser/functions/xuserunregisterfordeviceassociationchanged.md)
- [XUserRegisterForDeviceAssociationChanged](/reference/system/xuser/functions/xuserregisterfordeviceassociationchanged.md)