The component is used to create the UPC-E barcode symbol, including the UPC-E0 and UPC-E1.
The UPC-E barcode symbology is also known as Universal Product Code version E, UPC-E0, E0, UPC-E1, E1, GTIN-12 with lead "0", GS1-12, UCC-12, etc. It is a variation of UPC-A which allows for a more compact barcode by eliminating "extra" zeros. Since the resulting UPC-E barcode is about half the size as an UPC-A barcode, UPC-E is generally used on products with very small packaging where a full UPC-A barcode couldn't reasonably fit. An UPC-E barcode represents 7 digits and a check digit, and the first digit (number system) is 0 (UPC-E0) or 1 (UPC-E1).
An EAN-2 or an EAN-5 barcode may be added.
The UPC-E barcode symbol can be used together with a 2-column CC-A or a 2-column CC-B 2D symbol to create the EAN.UCC composite symbol. If you use the 2D Barcode VCL Components package, the component can be used as the value of the Liner property of the CC-A or CC-B 2D barcode component to create the EAN.UCC composite symbols. In such case, only the Barcode, AutoCheckDigit, BarcodeHeight, DisplayText, TextPosition, TextAlignment, TextFont, TextVSpacing, TextHSpacing, ExtraFontSize, LeftQuietZoneSpacing, and the RightQuietZoneSpacing properties are useful, the value of other properties will be ignored and they will be set automatically depending on the settings of the 2D barcode component. In addition, the BarcodeHeight property should be set to a value larger than zero, and the Image should not be normally set.