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

# modifyLassoText

> Modify the lasso-selected TextBox.

<Note>
  This API supports undo/redo in NOTE.

  This API modifies the TextBox selected by the current lasso selection. The lasso selection must contain exactly one TextBox; otherwise the call fails.
  It is recommended to call this API from the plugin UI entered via a lasso toolbar button.
</Note>

```ts theme={null}
static modifyLassoText(textBox: {
 fontSize?: number;
 fontPath?: string;
 textContentFull: string;
 textRect: Rect;
 textDigestData?: string;
 textAlign?: number;
 textBold?: number;
 textItalics?: number;
 textFrameWidthType?: number;
 textFrameWidth?: number;
 textFrameStyle?: number;
 textEditable?: number;
}): Promise<APIResponse<boolean>>;
```

**Parameters**

| Parameter                    | Type                                                    | Description                                         |
| ---------------------------- | ------------------------------------------------------- | --------------------------------------------------- |
| `textBox.textContentFull`    | `string`                                                | Text content (required, non-empty)                  |
| `textBox.textRect`           | [`Rect`](/en/api-reference/supernote-plugin/types/rect) | TextBox rectangle (required; must be non-zero area) |
| `textBox.fontSize`           | `number`                                                | Font size (optional; must be positive)              |
| `textBox.fontPath`           | `string`                                                | Font path (optional)                                |
| `textBox.textDigestData`     | `string`                                                | Digest data (optional)                              |
| `textBox.textAlign`          | `number`                                                | Alignment (optional)                                |
| `textBox.textBold`           | `number`                                                | Bold (optional)                                     |
| `textBox.textItalics`        | `number`                                                | Italic (optional)                                   |
| `textBox.textFrameWidthType` | `number`                                                | Border width type (optional)                        |
| `textBox.textFrameWidth`     | `number`                                                | Border width (optional)                             |
| `textBox.textFrameStyle`     | `number`                                                | Border style (optional)                             |
| `textBox.textEditable`       | `number`                                                | Editable state (optional)                           |

**Returns**

* [`APIResponse<boolean>`](/en/api-reference/supernote-plugin/types/api-response):
  `result === true` indicates the modification succeeded

## Example

```ts wrap theme={null}
import { PluginNoteAPI, type TextBox } from 'sn-plugin-lib';

/**
* Example: modify a lasso-selected TextBox (read first, then update content).
 */
export async function exampleModifyLassoText() {
 const listRes = await PluginNoteAPI.getLassoText();
 if (!listRes.success) {
 throw new Error(listRes.error?.message ?? 'getLassoText call failed');
 }

 const textBoxes = (listRes.result ?? []) as TextBox[];
 const first = textBoxes[0];
 if (!first) {
 return false;
 }

 const res = await PluginNoteAPI.modifyLassoText({
 ...first,
 textContentFull: 'Updated by plugin',
 });

 if (!res.success) {
 throw new Error(res.error?.message ?? 'modifyLassoText call failed');
 }
 return res.result;
}
```