---
title: SendBufferQueueChange
framework: VideoDriverKit
role: symbol
role_heading: Instance Method
platforms: [driverkit 27.0+]
path: videodriverkit/iouservideostream/sendbufferqueuechange
---

# SendBufferQueueChange

Sends a notification to the host that the buffer queue has changed.

## Declaration

```occ
kern_return_t SendBufferQueueChange();
```

## Return Value

Return Value kIOReturnSuccess if the notification was successfully sent.

## Discussion

Discussion This will result in the user’s buffer queue changed handler being called, if they registered one.

## See Also

### Working with queues

- [GetInputQueue](videodriverkit/iouservideostream/getinputqueue.md)
- [GetOutputQueue](videodriverkit/iouservideostream/getoutputqueue.md)
- [createQueues](videodriverkit/iouservideostream/createqueues.md)
- [destroyQueues](videodriverkit/iouservideostream/destroyqueues.md)
- [dequeueInputEntry](videodriverkit/iouservideostream/dequeueinputentry.md)
- [enqueueOutputEntry](videodriverkit/iouservideostream/enqueueoutputentry.md)
- [IOStreamBufferQueue](videodriverkit/iostreambufferqueue.md)