Gets a value determining the ruler bar's read only mode. When the ruler bar is set to read only, it still shows all formatting attributes of the connected Text
<void> RulerBarViewGenerator.getReadOnly(<RequestBooleanCallback> callback, [<ErrorCallback> errorCallback])| Parameter | Description |
|---|---|
| callback | Receives the property value. |
| error |
Optional. Is called when the operation failed with an error. |