# Region

> phone 12+ | 2in1 13+ | tablet 12+ | tv 19+ | wearable 18+

```c
typedef struct Region {...} Region
```

## 概述

> phone | 2in1 | tablet | tv | wearable

表示本地窗口OHNativeWindow需要更新内容的矩形区域（脏区）。

**起始版本：** 8

**相关模块：** [NativeWindow](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-nativewindow)

**所在头文件：** [external_window.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-external-window-h)

## 汇总

> phone | 2in1 | tablet | tv | wearable

### 成员变量

> phone | 2in1 | tablet | tv | wearable

|名称|描述|
|:------------------------------------------------------------------------------------------------------|:--------------------------------|
|[Rect](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-nativewindow-rect)* rects|如果rects是空指针nullptr，默认Buffer大小为脏区。|
|int32_t rectNumber|如果rectNumber为0，默认Buffer大小为脏区。|