Sets an additional text that is displayed below or above the barcode image.
<void> Barcode.setAdditionalText(<string> value, [<EmptyRequestCallback> callback], [<ErrorCallback> errorCallback])| Parameter | Description |
|---|---|
| value | The additional text. |
| callback | Optional. Is called when the operation completed. |
| error |
Optional. Is called when the operation failed with an error. |