# SharedState interface 参考 (/zh-CN/api-reference/whiteboard/whiteboard-sdk/harmonyos/interface-shared-state)

> For AI agents: see the complete documentation index at [llms.txt](/llms.txt).

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## 详细描述 [#详细描述]

适用版本：**@shengwang/whiteboard 0.2.11**。

RoomState 的继承结构；roomMembers、sceneState、windowBoxState、pageState、cameraState 均可通过 RoomState 读取。

当前版本未从 SDK 包入口单独导出此类型名；通过所述配置、参数或返回值使用其结构。

## 类型结构（源码声明） [#类型结构源码声明]

下方源码文件的 export 声明不等同于 SDK 包入口导出；业务导入方式以上方说明为准。

```text
interface SharedState
```

| [roomMembers](/zh-CN/api-reference/whiteboard/whiteboard-sdk/harmonyos/interface-shared-state#ad98a99b03bc67b22e4ba892606e36ed6) | `roomMembers?: RoomMember[]` |
| --- | --- |
| [sceneState](/zh-CN/api-reference/whiteboard/whiteboard-sdk/harmonyos/interface-shared-state#ab9810a16ed64a6b4a9316540e9c78d6d) | `sceneState?: SceneState` |
| [windowBoxState](/zh-CN/api-reference/whiteboard/whiteboard-sdk/harmonyos/interface-shared-state#a15f734cf3a768462f5e765f61342873a) | `windowBoxState?: object` |
| [pageState](/zh-CN/api-reference/whiteboard/whiteboard-sdk/harmonyos/interface-shared-state#acb552803c2b009af516fde62dde285dc) | `pageState?: PageState` |
| [cameraState](/zh-CN/api-reference/whiteboard/whiteboard-sdk/harmonyos/interface-shared-state#abe27f4dde321d0d8a69931b21954dc96) | `cameraState?: CameraState` |

## 变量说明 [#变量说明]

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### roomMembers [#roommembers]

```text
roomMembers?: RoomMember[]
```

类型成员，必填性和返回类型以声明为准。

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### sceneState [#scenestate]

```text
sceneState?: SceneState
```

场景状态，包含当前场景组和零基场景索引。

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### windowBoxState [#windowboxstate]

```text
windowBoxState?: object
```

类型成员，必填性和返回类型以声明为准。

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### pageState [#pagestate]

```text
pageState?: PageState
```

多窗口 MainView 页面状态，包含零基 index 和页面总数 length。

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### cameraState [#camerastate]

```text
cameraState?: CameraState
```

白板相机状态，RoomState 继承此字段；scale 是视角缩放比例。