> ## 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.

# PFMatchmakingStateChange

> 由 PlayFab 多人游戏匹配库传递的、表示事件或状态变更的通用基础结构，可分派到特定的派生类型。

匹配库中事件或状态变更的通用基础结构表示。

## 语法

```cpp theme={null}
struct PFMatchmakingStateChange {  
    PFMatchmakingStateChangeType stateChangeType;  
}  
```

### 成员

**`stateChangeType`**   [PFMatchmakingStateChangeType](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/enums/pfmatchmakingstatechangetype)

所表示状态变更的具体类型。

使用此字段来确定此 PFMatchmakingStateChange 结构标头所表示的对应派生结构。

## 备注

PFMatchmakingStateChange 结构由 [PFMultiplayerStartProcessingMatchmakingStateChanges()](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/functions/pfmultiplayerstartprocessingmatchmakingstatechanges) 报告，供 title 处理，然后通过 [PFMultiplayerFinishProcessingMatchmakingStateChanges()](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/functions/pfmultiplayerfinishprocessingmatchmakingstatechanges) 方法及时传回。<br /><br /> `stateChangeType` 字段指示发生了哪种状态变更，然后应将此基础结构强制转换为更具体的派生结构，以检索其他特定于事件的信息。

## 要求

**头文件：** PFMatchmaking.h

## 另请参阅

[PFMatchmaking 成员](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/pfmatchmaking_members)\
[PFMultiplayerStartProcessingMatchmakingStateChanges](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/functions/pfmultiplayerstartprocessingmatchmakingstatechanges)\
[PFMultiplayerFinishProcessingMatchmakingStateChanges](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/functions/pfmultiplayerfinishprocessingmatchmakingstatechanges)


## Related topics

- [PFMatchmakingStateChangeType](/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/enums/pfmatchmakingstatechangetype.md)
- [PFMultiplayerStartProcessingMatchmakingStateChanges](/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/functions/pfmultiplayerstartprocessingmatchmakingstatechanges.md)
- [PFMultiplayerFinishProcessingMatchmakingStateChanges](/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/functions/pfmultiplayerfinishprocessingmatchmakingstatechanges.md)
- [异步 Lobby 和 Matchmaking C++ SDK 操作指南](/zh-CN/services/playfab/multiplayer/lobby/lobby-and-matchmaking-client-sdk-async.md)
- [PFMultiplayer C/C++ API 概述 - PFMatchmaking.h](/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmatchmaking/pfmatchmaking_members.md)