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

# XblMultiplayerConnectionIdChangedHandler

> XblMultiplayerConnectionIdChangedHandler

A callback method to be called when the multiplayer connection id changes.

## Syntax

```cpp theme={null}
void XblMultiplayerConnectionIdChangedHandler(  
         void* context  
)  
```

### Parameters

*context*   \_In\_opt\_\
Type: void\*

Caller context to be passed the handler.

### Return value

Type: void

## Requirements

**Header:** multiplayer\_c.h

**Library:** Microsoft.Xbox.Services.142.C.lib or Microsoft.Xbox.Services.143.C.lib

## See also

[multiplayer\_c](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_c/multiplayer_c_members.md)


## Related topics

- [XblMultiplayerAddConnectionIdChangedHandler](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayeraddconnectionidchangedhandler.md)
- [multiplayer_c (contents)](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_c/multiplayer_c_members.md)
- [XblMultiplayerRemoveConnectionIdChangedHandler](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayerremoveconnectionidchangedhandler.md)
- [XblMultiplayerSessionChangedHandler](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayersessionchangedhandler.md)
- [XblMultiplayerAddSessionChangedHandler](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayeraddsessionchangedhandler.md)