The Active barcode is at all times shown on the image panel. Whenever the data or configuration is changed, the barcode is re-generated. The barcode is not visible, if an error is detected while generating barcode. Such Error messages are displayed in the Result panel.
You can drag the Active barcode around the image to see how it interacts with other document content.
Please refer to How To... section to explore wide range of barcode and barcode design use.