> ## 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.

# XblMultiplayerGetActivitiesForSocialGroupResultCount

> XblMultiplayerGetActivitiesForSocialGroupResultCount

# XblMultiplayerGetActivitiesForSocialGroupResultCount

取得傳回的 [XblMultiplayerActivityDetails](/zh-TW/reference/live/xsapi-c/multiplayer_c/structs/xblmultiplayeractivitydetails) 物件數目。

## 語法

```cpp theme={null}
HRESULT XblMultiplayerGetActivitiesForSocialGroupResultCount(  
         XAsyncBlock* async,  
         size_t* activityCount  
)  
```

### 參數

*async*   \_In\_\
類型：XAsyncBlock\*

此作業的 `XAsyncBlock`。

*activityCount*   \_Out\_\
類型：size\_t\*

傳回的活動物件數目。

### 傳回值

類型：HRESULT

此 API 作業的 HRESULT 傳回碼。

## 需求

**標頭：** multiplayer\_c.h

**程式庫：** Microsoft.Xbox.Services.14x.GDK.C.lib

## 另請參閱

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


## Related topics

- [XblMultiplayerGetActivitiesForSocialGroupResult](/zh-TW/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitiesforsocialgroupresult.md)
- [XblMultiplayerGetActivitiesWithPropertiesForSocialGroupResult](/zh-TW/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitieswithpropertiesforsocialgroupresult.md)
- [XblMultiplayerGetActivitiesWithPropertiesForSocialGroupResultSize](/zh-TW/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitieswithpropertiesforsocialgroupresultsize.md)
- [XblMultiplayerGetActivitiesForSocialGroupAsync](/zh-TW/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitiesforsocialgroupasync.md)
- [XblMultiplayerGetActivitiesWithPropertiesForSocialGroupAsync](/zh-TW/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitieswithpropertiesforsocialgroupasync.md)