> ## 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.

# XblRealTimeActivityAddConnectionStateChangeHandler

> XblRealTimeActivityAddConnectionStateChangeHandler

# XblRealTimeActivityAddConnectionStateChangeHandler

註冊處理常式函式，以接收用戶端服務與即時活動服務失去或取得連線時所傳送的通知。

## 語法

```cpp theme={null}
XblFunctionContext XblRealTimeActivityAddConnectionStateChangeHandler(  
         XblContextHandle xboxLiveContext,  
         XblRealTimeActivityConnectionStateChangeHandler* handler,  
         void* context  
)  
```

### 參數

*xboxLiveContext*   \_In\_\
類型：[XblContextHandle](/zh-TW/reference/live/xsapi-c/types_c/handles/xblcontexthandle)

XBOX Live 內容控制代碼。

*handler*   \_In\_\
類型：XblRealTimeActivityConnectionStateChangeHandler\*

接收通知的回呼函式。

*context*   \_In\_opt\_\
類型：void\*

將傳回給處理常式函式的呼叫端內容。

### 傳回值

類型：XblFunctionContext

可用來取消註冊事件處理常式的 XblFunctionContext 物件。

## 需求

**標頭：** real\_time\_activity\_c.h

**程式庫：** Microsoft.Xbox.Services.14x.GDK.C.lib

## 另請參閱

[real\_time\_activity\_c](/zh-TW/reference/live/xsapi-c/real_time_activity_c/real_time_activity_c_members)


## Related topics

- [XblRealTimeActivityAddConnectionStateChangeHandler](/reference/live/xsapi-c/real_time_activity_c/functions/xblrealtimeactivityaddconnectionstatechangehandler.md)
- [XblRealTimeActivityConnectionStateChangeHandler](/reference/live/xsapi-c/real_time_activity_c/functions/xblrealtimeactivityconnectionstatechangehandler.md)