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# AudioStateMonitorRegistrationHandle

> AudioStateMonitorRegistrationHandle

# AudioStateMonitorRegistrationHandle

一个 64 位整数,用于标识通过 [IAudioStateMonitor::RegisterCallback](/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor-registercallback) 注册的回调。

## Syntax

```cpp theme={null}
typedef __int64 AudioStateMonitorRegistrationHandle;
```

## Remarks

将此值传递给 [IAudioStateMonitor::UnregisterCallback](/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor-unregistercallback) 以注销回调函数。

## Requirements

**头文件:** Audiostatemonitorapi.h

**支持的平台:** Windows、XBOX One 系列主机和 XBOX Series 主机

## See also

[关于 WASAPI](https://learn.microsoft.com/windows/desktop/CoreAudio/wasapi)\
[IAudioStateMonitor::RegisterCallback](/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor-registercallback)\
[IAudioStateMonitor::UnregisterCallback](/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor-unregistercallback)


## Related topics

- [IAudioStateMonitor::UnregisterCallback 方法](/zh-CN/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor-unregistercallback.md)
- [IAudioStateMonitor::RegisterCallback 方法](/zh-CN/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor-registercallback.md)
- [AudioStateMonitor](/zh-CN/reference/audio/audiostatemonitor/audiostatemonitor_members.md)
- [IAudioStateMonitor 接口](/zh-CN/reference/audio/audiostatemonitor/interfaces/iaudiostatemonitor.md)
- [CreateRenderAudioStateMonitor](/zh-CN/reference/audio/audiostatemonitor/functions/createrenderaudiostatemonitor.md)