> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PFLobbyGetConnectionString

> PFLobbyGetConnectionString 参考，用于通过 PlayFab Multiplayer C++ SDK 检索加入 PlayFab 大厅所使用的默认连接字符串。

获取与大厅关联的默认连接字符串。

## 语法

```cpp theme={null}
HRESULT PFLobbyGetConnectionString(  
    PFLobbyHandle lobby,  
    const char** connectionString  
)  
```

### 参数

**`lobby`**   PFLobbyHandle

大厅的句柄。

**`connectionString`**   char\*\*\
*library-allocated output*

输出的连接字符串。

### 返回值

类型：HRESULT

如果调用成功，则为 `S_OK`；否则为错误代码。可通过 [PFMultiplayerGetErrorMessage()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pfmultiplayer/functions/pfmultiplayergeterrormessage.md) 检索错误代码的可读形式。

## 备注

如果此大厅对象是通过调用 [PFMultiplayerCreateAndJoinLobby()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayercreateandjoinlobby.md) 创建的，则此方法将返回错误，直到 [PFMultiplayerStartProcessingLobbyStateChanges()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerstartprocessinglobbystatechanges.md) 提供一个成功的 [PFLobbyCreateAndJoinLobbyCompletedStateChange](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbycreateandjoinlobbycompletedstatechange.md)。\
\
 如果此大厅对象是通过调用 [PFMultiplayerCreateAndClaimServerLobby()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayercreateandclaimserverlobby.md) 创建的，则此方法将返回错误，直到 [PFMultiplayerStartProcessingLobbyStateChanges()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerstartprocessinglobbystatechanges.md) 提供一个成功的 [PFLobbyCreateAndClaimServerLobbyCompletedStateChange](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbycreateandclaimserverlobbycompletedstatechange.md)。  \
\
 如果此大厅对象是通过调用 [PFMultiplayerClaimServerLobby()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerclaimserverlobby.md) 创建的，则此方法将返回错误，直到 [PFMultiplayerStartProcessingLobbyStateChanges()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerstartprocessinglobbystatechanges.md) 提供一个成功的 [PFLobbyClaimServerLobbyCompletedStateChange](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbyclaimserverlobbycompletedstatechange.md)。  \
\
 如果此大厅对象是通过调用 [PFMultiplayerJoinLobby()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerjoinlobby.md) 创建的，则此方法将返回错误，直到 [PFMultiplayerStartProcessingLobbyStateChanges()](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerstartprocessinglobbystatechanges.md) 提供一个成功的 [PFLobbyJoinLobbyCompletedStateChange](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbyjoinlobbycompletedstatechange.md)。

## 要求

**头文件：** PFLobby.h

## 另请参阅

[PFLobby 成员](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/pflobby_members.md)


## Related topics

- [与 PlayFab Lobby 和 Match 集成](https://docs.xbox.com/zh-CN/services/xbox-services/multiplayer/mpa/concepts/live-mpa-playfab-integration.md)
- [从 MPSD 迁移到 PlayFab Multiplayer 和 MPA](https://docs.xbox.com/zh-CN/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-to-mlp.md)
- [PFMultiplayer C/C++ API 概览 - PFLobby.h](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/pflobby_members.md)
- [Lobby.ConnectionString](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/Lobby/ConnectionString.md)
- [LobbySearchResult.ConnectionString](https://docs.xbox.com/zh-CN/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbySearchResult/ConnectionString.md)