Gets the horizontal extension, in twips, of the text formfield, when it is empty.
<void> TextFormField.getEmptyWidth(<RequestNumberCallback> callback, [<ErrorCallback> errorCallback])| Parameter | Description |
|---|---|
| callback | Receives the horizontal extension, in twips, of the text formfield, when it is empty. |
| error |
Optional. Is called when the operation failed with an error. |