TUPCEANReader Class

Encapsulates functionality and implementation that is common to UPC and EAN families of one-dimensional barcodes.

type TUPCEANReader = class(TOneDReader)

The TUPCEANReader type exposes the following members.

	Name	Description
	Create	Initializes a new instance of the class.
	Destroy

	Name	Description
	BarcodeFormat	Get the format of this decoder.
	DecodeMiddle	Subclasses override this to decode the portion of a barcode between the start and end guard patterns.
	DoDecodeRow	Like decodeRow(int, BitArray, java.util.Map), but allows caller to inform method about where the UPC/EAN start pattern is found. This allows this to be computed once and reused across many implementations.
	checkChecksum
	decodeDigit	Attempts to decode a single UPC/EAN-encoded digit.
	decodeEnd	Decodes the end.
	decodeRow	Overloaded. Attempts to decode a one-dimensional barcode format given a single row of an image. (Overrides ZXing.OneD.OneDReader.TOneDReader.decodeRow .)
	findGuardPattern	Overloaded.
	findStartGuardPattern

	Name	Description
	L_AND_G_PATTERNS	As above but also including the "even", or "G" patterns used to encode UPC/EAN digits.
	L_PATTERNS	"Odd", or "L" patterns used to encode UPC/EAN digits.
	MAX_AVG_VARIANCE
	MAX_INDIVIDUAL_VARIANCE
	MIDDLE_PATTERN	Pattern marking the middle of a UPC/EAN pattern, separating the two halves.
	START_END_PATTERN	Start/end guard pattern.