---
title: SetDeviceIsAlive
framework: VideoDriverKit
role: symbol
role_heading: Instance Method
platforms: [driverkit 27.0+]
path: videodriverkit/iouservideoclockdevice/setdeviceisalive
---

# SetDeviceIsAlive

Sets a Boolean value to indicate the device is alive.

## Declaration

```occ
kern_return_t SetDeviceIsAlive(bool in_is_alive);
```

## Parameters

- `in_is_alive`: True if device is alive.

## Discussion

Discussion A true  value means the device is ready and available and false means the device is unusable and will most likely go away shortly.

## See Also

### Working with clock device state

- [GetDeviceIsRunning](videodriverkit/iouservideoclockdevice/getdeviceisrunning.md)
- [GetDeviceIsAlive](videodriverkit/iouservideoclockdevice/getdeviceisalive.md)
- [SetIsHidden](videodriverkit/iouservideoclockdevice/setishidden.md)
- [GetIsHidden](videodriverkit/iouservideoclockdevice/getishidden.md)