> ## Documentation Index
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# IXtfDeployCallback::OnDeployExtraFileDetected

> IXtfDeployCallback::OnDeployExtraFileDetected

# IXtfDeployCallback::OnDeployExtraFileDetected

检测到额外文件时调用的回调。

<a id="syntaxSection" />

## 语法

```cpp theme={null}
public:
HRESULT OnDeployExtraFileDetected(
         LPCWSTR pszFilePath
)  
```

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### 参数

*pszFilePath*\
类型：LPCWSTR

主机上额外文件的绝对路径。

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### 返回值

类型：HRESULT

返回 `S_OK` 以继续部署，或返回 HRESULT 错误代码以取消部署。

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## 备注

此回调在部署系统在主机上发现部署 PC 上不存在的文件时调用。每检测到一个额外文件，就会调用此回调一次。有关文件如何评估以及在部署过程中何时调用回调的详细信息，请参阅 [IXtfDeployCallback Interface](/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/ixtfdeploycallback-xtfapplication-xbox-microsoft-t)。

与 `IXtfDeployCallback` 的其他回调一样，如果此回调返回 `S_OK`，则部署过程继续。如果此回调返回任何 `HRESULT` 错误代码，则部署过程会立即取消。已传输或删除的文件保持原样，部分传输的文件将以其被截断的形式关闭。必须完成另一次部署，以确保主机上的所有文件完整且为最新。

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## 要求

**头文件：** xtfapplication.h

**库：** xtfapplication.lib

**支持的平台：** Windows（用于 XBOX 主机工具）

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## 另请参阅

[IXtfDeployCallback Interface](/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/ixtfdeploycallback-xtfapplication-xbox-microsoft-t)\
[XtfApplication](/reference/tools/xtf/xtfapplication/xtfapplication-xbox-microsoft-n)


## Related topics

- [IXtfDeployCallback::OnDeployExtraFileRemoved](/zh-CN/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/methods/ondeployextrafileremoved-ixtfdeploycallback-xtfapplication-xb.md)
- [IXtfDeployCallback::OnDeployFileProgress](/zh-CN/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/methods/ondeployfileprogress-ixtfdeploycallback-xtfapplication-xbox-w.md)
- [IXtfDeployCallback::OnDeployChangeEvaluation](/zh-CN/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/methods/ondeploychangeevaluation-ixtfdeploycallback-xtfapplication-xb.md)
- [IXtfDeployCallback::OnDeployMetrics method](/zh-CN/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/methods/ondeploymetrics-ixtfdeploycallback-xtfapplication-xbox-window.md)
- [IXtfDeployCallback::OnDeployError](/zh-CN/reference/tools/xtf/xtfapplication/classes/IXtfDeployCallback/methods/ondeployerror-ixtfdeploycallback-xtfapplication-xbox-windows.md)