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# PartyAudioManipulationSourceStream::SetCustomContext

> Configures an optional, custom pointer-sized context value with this source stream object.

Configures an optional, custom pointer-sized context value with this source stream object.

## Syntax

```cpp theme={null}
PartyError SetCustomContext(  
    void* customContext  
)  
```

### Parameters

**`customContext`**   void\*\
*optional*

An arbitrary, pointer-sized value to store with the network object.

### Return value

PartyError

`c_partyErrorSuccess` if the call succeeded or an error code otherwise. The human-readable form of the error code can be retrieved via [PartyManager::GetErrorMessage()](/services/playfab/multiplayer/networking/reference/classes/PartyManager/methods/partymanager_geterrormessage).

## Remarks

The custom context is typically used as a "shortcut" that simplifies accessing local, title-specific memory associated with the network without requiring a mapping lookup. The value is retrieved using the [GetCustomContext()](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getcustomcontext) method. <br /><br /> Any configured value is treated as opaque by the library, and is only valid on the local device; it is not transmitted over the network.

## Requirements

**Header:** Party.h

## See also

[PartyAudioManipulationSourceStream](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/partyaudiomanipulationsourcestream)\
[PartyAudioManipulationSourceStream::GetCustomContext](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getcustomcontext)


## Related topics

- [PartyAudioManipulationSourceStream::GetCustomContext](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getcustomcontext.md)
- [PartyAudioManipulationSourceStream](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/partyaudiomanipulationsourcestream.md)
- [PartyAudioManipulationSinkStream::SetCustomContext](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSinkStream/methods/partyaudiomanipulationsinkstream_setcustomcontext.md)
- [PartyAudioManipulationSinkStream::GetCustomContext](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSinkStream/methods/partyaudiomanipulationsinkstream_getcustomcontext.md)
- [PartyAudioManipulationSourceStream::GetFormat](/services/playfab/multiplayer/networking/reference/classes/PartyAudioManipulationSourceStream/methods/partyaudiomanipulationsourcestream_getformat.md)