> ## 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.

# XblMultiplayerEventArgsMembersCount

> XblMultiplayerEventArgsMembersCount

# XblMultiplayerEventArgsMembersCount

检索 `XblMultiplayerEventType::MemberJoined` 和 `XblMultiplayerEventType::MemberLeft` 事件的其他信息。

## 语法

```cpp theme={null}
HRESULT XblMultiplayerEventArgsMembersCount(  
         XblMultiplayerEventArgsHandle argsHandle,  
         size_t* memberCount  
)  
```

### 参数

*argsHandle*   \_In\_\
类型：[XblMultiplayerEventArgsHandle](/reference/live/xsapi-c/multiplayer_manager_c/handles/xblmultiplayereventargshandle)

多人游戏事件的事件参数句柄。

*memberCount*   \_Out\_\
类型：size\_t\*

[XblMultiplayerEventArgsMembers](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmembers) 的调用方分配 `members` 数组的大小。

### 返回值

类型：HRESULT

此 API 操作的 HRESULT 返回代码。

## 备注

在调用 [XblMultiplayerEventArgsMembers](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmembers) 函数之前，先调用此函数以返回必须为 [XblMultiplayerEventArgsMembers](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmembers) 函数的 `members` 参数分配的数组大小。<br />多人游戏事件的事件参数句柄可以从该多人游戏事件的 [XblMultiplayerEvent](/reference/live/xsapi-c/multiplayer_manager_c/structs/xblmultiplayerevent) 结构的 `EventArgsHandle` 成员中检索。<br />有关多人游戏事件的详细信息，请参阅[多人游戏管理器 API 概述](/services/xbox-services/multiplayer/mpm/concepts/live-multiplayer-manager-api-overview)。

## 要求

**头文件：** multiplayer\_manager\_c.h

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

## 另请参阅

[multiplayer\_manager\_c](/reference/live/xsapi-c/multiplayer_manager_c/multiplayer_manager_c_members)\
[XblMultiplayerEventArgsFindMatchCompleted](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsfindmatchcompleted)\
[XblMultiplayerEventArgsMember](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmember)\
[XblMultiplayerEventArgsMembers](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmembers)\
[XblMultiplayerEventArgsPerformQosMeasurements](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsperformqosmeasurements)\
[XblMultiplayerEventArgsPropertiesJson](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargspropertiesjson)\
[XblMultiplayerEventArgsXuid](/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsxuid)\
[XblMultiplayerEventType](/reference/live/xsapi-c/multiplayer_manager_c/enums/xblmultiplayereventtype)


## Related topics

- [XblMultiplayerEventArgsMember](/zh-CN/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmember.md)
- [XblMultiplayerEventArgsMembers](/zh-CN/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsmembers.md)
- [XblMultiplayerEventArgsXuid](/zh-CN/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsxuid.md)
- [XblMultiplayerEventArgsPropertiesJson](/zh-CN/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargspropertiesjson.md)
- [XblMultiplayerEventArgsFindMatchCompleted](/zh-CN/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayereventargsfindmatchcompleted.md)