---
title: SetIsHidden
framework: audiodriverkit
role: symbol
role_heading: Instance Method
path: audiodriverkit/iouseraudioclockdevice/setishidden
---

# SetIsHidden

Sets a Boolean value to indicate whether the device is hidden.

## Declaration

```occ
kern_return_t SetIsHidden(bool in_is_hidden);
```

## Parameters

- `in_is_hidden`: true if the device is hidden; otherwise, false.

## Return Value

Return Value kIOReturnSuccess on success, or another value if an error occurs. For a list of error codes, see Error Codes.

## Discussion

Discussion A true value indicates the device isn’t included in the normal list of devices, and is only findable by its UID. A hidden device can’t be the default device.

## See Also

### Working with Clock Device State

- [GetDeviceIsRunning](audiodriverkit/iouseraudioclockdevice/getdeviceisrunning.md)
- [SetDeviceIsAlive](audiodriverkit/iouseraudioclockdevice/setdeviceisalive.md)
- [GetDeviceIsAlive](audiodriverkit/iouseraudioclockdevice/getdeviceisalive.md)
- [GetIsHidden](audiodriverkit/iouseraudioclockdevice/getishidden.md)