> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# HCTraceSetPlatformCallbacks

> HCTraceSetPlatformCallbacks

# HCTraceSetPlatformCallbacks

设置平台回调。

## Syntax

```cpp theme={null}
HRESULT HCTraceSetPlatformCallbacks(  
         HCTracePlatformThisThreadIdCallback* threadIdCallback,  
         void* threadIdContext,  
         HCTracePlatformWriteMessageToDebuggerCallback* writeToDebuggerCallback,  
         void* writeToDebuggerContext  
)  
```

### Parameters

*threadIdCallback*   \_In\_\
Type: HCTracePlatformThisThreadIdCallback\*

线程 ID 回调。

*threadIdContext*   \_In\_opt\_\
Type: void\*

线程 ID 上下文。

*writeToDebuggerCallback*   \_In\_\
Type: HCTracePlatformWriteMessageToDebuggerCallback\*

写入调试器回调。

*writeToDebuggerContext*   \_In\_opt\_\
Type: void\*

写入调试器上下文。

### Return value

Type: HRESULT

此 API 操作的结果代码。可能的值为 S\_OK 或 E\_HC\_NOT\_INITIALISED。

## Requirements

**Header:** trace.h

**Library:** libHttpClient.GDK.lib

## See also

[trace](/reference/live/httpclient/trace/trace_members)


## Related topics

- [HCTraceSetClientCallback](/zh-CN/reference/live/httpclient/trace/functions/hctracesetclientcallback.md)
- [HCTraceSetTraceToDebugger](/zh-CN/reference/live/httpclient/trace/functions/hctracesettracetodebugger.md)
- [HCSettingsSetTraceLevel](/zh-CN/reference/live/httpclient/trace/functions/hcsettingssettracelevel.md)
- [HCTraceSetEtwEnabled](/zh-CN/reference/live/httpclient/trace/functions/hctracesetetwenabled.md)
- [HCTraceImplSetAreaVerbosity](/zh-CN/reference/live/httpclient/trace/functions/hctraceimplsetareaverbosity.md)