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# XblMultiplayerGetActivitiesForUsersResultCount

> XblMultiplayerGetActivitiesForUsersResultCount

# XblMultiplayerGetActivitiesForUsersResultCount

获取返回的 [XblMultiplayerActivityDetails](/reference/live/xsapi-c/multiplayer_c/structs/xblmultiplayeractivitydetails) 对象的数量。

## 语法

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

### 参数

*async*   \_In\_\
类型：XAsyncBlock\*

此操作的 `XAsyncBlock`。

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

返回的活动对象的数量。

### 返回值

类型：HRESULT

此 API 操作的 HRESULT 返回代码。

## 要求

**头文件：** multiplayer\_c.h

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

## 另请参阅

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


## Related topics

- [XblMultiplayerGetActivitiesForUsersResult](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitiesforusersresult.md)
- [XblMultiplayerGetActivitiesWithPropertiesForUsersResult](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitieswithpropertiesforusersresult.md)
- [XblMultiplayerGetActivitiesForSocialGroupResultCount](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitiesforsocialgroupresultcount.md)
- [XblMultiplayerActivityGetActivityResult](/zh-CN/reference/live/xsapi-c/multiplayer_activity_c/functions/xblmultiplayeractivitygetactivityresult.md)
- [XblMultiplayerGetActivitiesWithPropertiesForUsersResultSize](/zh-CN/reference/live/xsapi-c/multiplayer_c/functions/xblmultiplayergetactivitieswithpropertiesforusersresultsize.md)