# ZoomFactorChangedCallback Function

> Callback function for the zoomFactorChanged event.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Function
- **Introduced:** 25.0
- **Path:** DS Server > Reference > JavaScript API > ZoomFactorChangedCallback Function
- **169 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript/zoomfactorchangedcallback/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript/zoomfactorchangedcallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript/zoomfactorchangedcallback/llms-full.txt

---

### Description

Callback function for the [zoomFactorChanged event](https://docs.textcontrol.com/ds-server/reference/javascript/txtextcontrol/addeventlistener-method/llms-full.txt).

### Syntax

```javascript
function(<ZoomFactorChangedEventArgs> args)
```

### Examples

The following example demonstrates `ZoomFactorChangedCallback` in a practical document-editing workflow. Callback function for the zoomFactorChanged event.

```javascript
function zoomFactorChangedCallback(args) {
    console.log("args:", args);
}
```

---

## Nearby

- **Previous:** [Javascript: WebSocketClosedEventArgs.wasClean Property](https://docs.textcontrol.com/ds-server/reference/javascript/websocketclosedeventargs/wasclean-property/llms-full.txt)
- **Next:** [ZoomFactorChangedEventArgs Object](https://docs.textcontrol.com/ds-server/reference/javascript/zoomfactorchangedeventargs/llms-full.txt)