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# XblMultiplayerManagerGameSessionPropertiesJson

> XblMultiplayerManagerGameSessionPropertiesJson

# XblMultiplayerManagerGameSessionPropertiesJson

Retrieves the custom properties for the game session, as a JSON string.

## Syntax

```cpp theme={null}
const char* XblMultiplayerManagerGameSessionPropertiesJson(  
)  
```

### Parameters

### Return value

Type: const char\*

A JSON string that specifies the custom properties for the game session, or null if a game session doesn't exist. The memory for the returned pointer remains valid until the next call to [XblMultiplayerManagerDoWork](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagerdowork).

## Remarks

This function retrieves the custom properties for the game session, represented as a JSON string. These custom properties can be changed at any time. If custom properties are shared between devices, or may be updated by several devices at the same time, use the [XblMultiplayerManagerGameSessionSetSynchronizedProperties](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagergamesessionsetsynchronizedproperties) function to change custom properties. Otherwise, you can use the [XblMultiplayerManagerGameSessionSetProperties](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagergamesessionsetproperties) function to change custom properties.

## Requirements

**Header:** multiplayer\_manager\_c.h

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

## See also

[multiplayer\_manager\_c](/reference/live/xsapi-c/multiplayer_manager_c/multiplayer_manager_c_members)\
[XblMultiplayerManagerLobbySessionPropertiesJson](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagerlobbysessionpropertiesjson)


## Related topics

- [XblMultiplayerManagerGameSessionConstants](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagergamesessionconstants.md)
- [Multiplayer Manager API overview](/services/xbox-services/multiplayer/mpm/concepts/live-multiplayer-manager-api-overview.md)
- [XblMultiplayerManagerGameSessionSetProperties](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagergamesessionsetproperties.md)
- [XblMultiplayerManagerLobbySessionPropertiesJson](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagerlobbysessionpropertiesjson.md)
- [XblMultiplayerManagerGameSessionSetSynchronizedProperties](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagergamesessionsetsynchronizedproperties.md)