# ArkUI_TextChangeEvent


## Overview

Defines the return types for the callback events triggered when the content of an input box changes, including the preview content.

**Since**: 15

**Related module**: [ArkUI_NativeModule](_ark_u_i___native_module.md)


## Summary


### Member Variables

| Name| Description| 
| -------- | -------- |
| const char \* [pStr](#pstr) | Text content of the text box. | 
| const char \* [pExtendStr](#pextendstr) | Preview content. | 
| const char \* [number](#number) | Insertion position of the preview content. | 


## Member Variable Description


### pStr

```
const char* ArkUI_TextChangeEvent::pStr
```
**Description**

Text content of the text box.

### pExtendStr

```
const char* ArkUI_TextChangeEvent::pExtendStr
```
**Description**

Preview content.

### number

```
const char* ArkUI_TextChangeEvent::number
```
**Description**

Insertion position of the preview content.