API Reference QRCodeReader_FMX ZXing.OneD.UPCEANReader TUPCEANReader TUPCEANReader.START_END_PATTERN Constant On this page Definition Definition Unit: ZXing.OneD.UPCEANReader Package: QRCodeReader_FMX Start/end guard pattern. Delphi Copy const START_END_PATTERN: TOneDPattern Value TOneDPattern