> ## 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.

# XblMultiplayerAddConnectionIdChangedHandler

> XblMultiplayerAddConnectionIdChangedHandler

# XblMultiplayerAddConnectionIdChangedHandler

在多人游戏连接 ID 更改时注册用于通知的事件处理程序。使用返回的 XblFunctionContext 注销处理程序。

## 语法

```cpp theme={null}
XblFunctionContext XblMultiplayerAddConnectionIdChangedHandler(  
         XblContextHandle xblContext,  
         XblMultiplayerConnectionIdChangedHandler* handler,  
         void* context  
)  
```

### 参数

*xblContext*   \_In\_\
类型：[XblContextHandle](/reference/live/xsapi-c/types_c/handles/xblcontexthandle)

本地用户的 XBOX live 上下文。

*handler*   \_In\_\
类型：XblMultiplayerConnectionIdChangedHandler\*

接收通知的回调函数。

*context*   \_In\_opt\_\
类型：void\*

传递给处理程序的调用方上下文。

### 返回值

类型：XblFunctionContext

为该事件注册的函数上下文令牌。

## 要求

**头文件：** multiplayer\_c.h

**库：** Microsoft.Xbox.Services.14x.GDK.C.lib

## 另请参阅

[multiplayer\_c](/reference/live/xsapi-c/multiplayer_c/multiplayer_c_members)


## Related topics

- [从 MPSD 迁移到 PlayFab Multiplayer 和 MPA](/zh-CN/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-to-mlp.md)
- [多人游戏会话目录概述](/zh-CN/services/xbox-services/multiplayer/mpsd/live-mpsd-overview.md)
- [XblMultiplayerConnectionIdChangedHandler](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayerconnectionidchangedhandler.md)
- [XblMultiplayerRemoveConnectionIdChangedHandler](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayerremoveconnectionidchangedhandler.md)
- [XblMultiplayerAddSessionChangedHandler](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayeraddsessionchangedhandler.md)