> ## 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.

# XblPresenceAddTitlePresenceChangedHandler

> XblPresenceAddTitlePresenceChangedHandler

Registers an event handler for title presence change notifications. Notifications will only be received for the Users and Titles configured with [XblPresenceTrackUsers](https://docs.xbox.com/reference/live/xsapi-c/presence_c/functions/xblpresencetrackusers.md) and [XblPresenceTrackAdditionalTitles](https://docs.xbox.com/reference/live/xsapi-c/presence_c/functions/xblpresencetrackadditionaltitles.md) respectively.

## Syntax

```cpp theme={null}
XblFunctionContext XblPresenceAddTitlePresenceChangedHandler(  
         XblContextHandle xblContextHandle,  
         XblPresenceTitlePresenceChangedHandler* handler,  
         void* context  
)  
```

### Parameters

*xblContextHandle*   \_In\_\
Type: [XblContextHandle](https://docs.xbox.com/reference/live/xsapi-c/types_c/handles/xblcontexthandle.md)

XBOX live context for the local user.

*handler*   \_In\_\
Type: XblPresenceTitlePresenceChangedHandler\*

The callback function that receives notifications.

*context*   \_In\_opt\_\
Type: void\*

Caller context that will be passed back to the handler.

### Return value

Type: XblFunctionContext

An XblFunctionContext object that can be used to unregister the event handler.

## Requirements

**Header:** presence\_c.h

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

## See also

[presence\_c](https://docs.xbox.com/reference/live/xsapi-c/presence_c/presence_c_members.md)


## Related topics

- [XblPresenceTitlePresenceChangedHandler](https://docs.xbox.com/reference/live/xsapi-c/presence_c/functions/xblpresencetitlepresencechangedhandler.md)
- [Handling a title Presence change](https://docs.xbox.com/services/xbox-services/community/presence/how-to/live-handling-a-title-presence-change.md)
- [XblPresenceTrackAdditionalTitles](https://docs.xbox.com/reference/live/xsapi-c/presence_c/functions/xblpresencetrackadditionaltitles.md)
- [XblPresenceTrackUsers](https://docs.xbox.com/reference/live/xsapi-c/presence_c/functions/xblpresencetrackusers.md)
- [presence_c (contents)](https://docs.xbox.com/reference/live/xsapi-c/presence_c/presence_c_members.md)