> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# XUserDefaultAudioEndpointKind

> XUserDefaultAudioEndpointKind

# XUserDefaultAudioEndpointKind

指定使用者的預設音訊端點是轉譯還是擷取音訊。

## 語法

```cpp theme={null}
enum class XUserDefaultAudioEndpointKind  : uint32_t  
{  
    CommunicationRender = 0,  
    CommunicationCapture = 1  
}  
```

## 常數

| 常數 | 描述 |
| - | - |
| CommunicationRender | 使用者的預設音訊端點會轉譯音訊。 |
| CommunicationCapture | 使用者的預設音訊端點會擷取音訊。 |

## 備註

[XUserGetDefaultAudioEndpointUtf16](/zh-TW/reference/system/xuser/functions/xusergetdefaultaudioendpointutf16) 函式使用 XUserDefaultAudioEndpointKind 列舉引數來取得使用者的預設音訊端點。
[XUserDefaultAudioEndpointUtf16ChangedCallback](/zh-TW/reference/system/xuser/functions/xuserdefaultaudioendpointutf16changedcallback) 函式接受 XUserDefaultAudioEndpointKind 列舉引數，並在使用者的預設音訊端點變更時叫用。

下列範例示範如何擷取使用者的預設音訊端點。

```cpp theme={null}
HRESULT GetAudioDeviceAssociation(
    IMMDeviceEnumerator* audioDeviceEnumerator,
    XUserLocalId user,
    XUserDefaultAudioEndpointKind defaultAudioEndpointKind,
    _Outptr_result_maybenull_ IMMDevice** endpoint)
{
    wchar_t audioDeviceId[XUserAudioEndpointMaxUtf16Count];
    RETURN_IF_FAILED_WITH_EXPECTED(XUserGetDefaultAudioEndpointUtf16(user, defaultAudioEndpointKind, std::size(audioDeviceId), audioDeviceId, nullptr), E_NOTFOUND);

    return audioDeviceEnumerator->GetDevice(audioDeviceId, endpoint);
}

HRESULT GetAudioAssociations()
{
    Mwrl::ComPtr<IMMDeviceEnumerator> audioDeviceEnumerator;

    RETURN_IF_FAILED(CoCreateInstance(
        __uuidof(MMDeviceEnumerator),
        nullptr,
        CLSCTX_ALL,
        __uuidof(IMMDeviceEnumerator),
        (void**)&audioDeviceEnumerator));

    XUserLocalId userLocalId;
    RETURN_IF_FAILED(XUserGetLocalId(_handle.get(), &userLocalId));

    {
        wil::unique_cotaskmem_string id;
        Mwrl::ComPtr<IMMDevice> device;
        if (SUCCEEDED(GetAudioDeviceAssociation(audioDeviceEnumerator.Get(), userLocalId, XUserDefaultAudioEndpointKind::CommunicationRender, &device)))
        {
            RETURN_IF_FAILED(device->GetId(&id));
        }
        appLog.AddLog("Preferred render communication device id: %S\n", id.get());
    }

    {
        wil::unique_cotaskmem_string id;
        Mwrl::ComPtr<IMMDevice> device;
        if (SUCCEEDED(GetAudioDeviceAssociation(audioDeviceEnumerator.Get(), userLocalId, XUserDefaultAudioEndpointKind::CommunicationCapture, &device)))
        {
            RETURN_IF_FAILED(device->GetId(&id));
        }
        appLog.AddLog("Preferred capture communication device id: %S\n", id.get());
    }

    return S_OK;
}
```

## 需求

**標頭：** XUser.h

**支援的平台：** Windows、XBOX One 系列主機和 XBOX Series 主機

## 另請參閱

[XUser](/zh-TW/reference/system/xuser/xuser_members)

[XUserGetDefaultAudioEndpointUtf16](/zh-TW/reference/system/xuser/functions/xusergetdefaultaudioendpointutf16)

[XUserDefaultAudioEndpointUtf16ChangedCallback](/zh-TW/reference/system/xuser/functions/xuserdefaultaudioendpointutf16changedcallback)


## Related topics

- [XUserDefaultAudioEndpointKind](/reference/system/xuser/enums/xuserdefaultaudioendpointkind.md)
- [XUserDefaultAudioEndpointUtf16ChangedCallback](/reference/system/xuser/functions/xuserdefaultaudioendpointutf16changedcallback.md)
- [XUserGetDefaultAudioEndpointUtf16](/reference/system/xuser/functions/xusergetdefaultaudioendpointutf16.md)