# RequestRectangleCallback Function

> Callback function for requests expecting a Rectangle object.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Function
- **Path:** TX Text Control .NET Server > Reference > JavaScript API > RequestRectangleCallback Function
- **269 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestrectanglecallback/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestrectanglecallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestrectanglecallback/llms-full.txt

---

### Description

Callback function for requests expecting a [Rectangle](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/rectangle/llms-full.txt) object.

### Syntax

```javascript
function(<Rectangle> rect)
```

### Examples

The following example demonstrates `RequestRectangleCallback` in a practical document-editing workflow. Callback function for requests expecting a Rectangle object.

```javascript
function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

function requestRectangleCallback(rect) {
    console.log("rect:", rect);
}

function useRequestRectangleCallback(frameBase) {
    frameBase.getBounds(requestRectangleCallback, onTxError);
}
```

---

## Nearby

- **Previous:** [RequestPointCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestpointcallback/llms-full.txt)
- **Next:** [RequestRenderModeCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestrendermodecallback/llms-full.txt)