QRCode (Quick Response Code) is a kind of
2-D (two-dimensional) symbology developed by Denso Wave and
released in 1994 with the primary aim of being a symbol that is
easily interpreted by scanner equipment. QR Code is capable of 360
degree (omni-directional), high speed reading. QR Code accomplishes
this task through position detection patterns located at the three
corners of the symbol. These position detection patterns guarantee
stable high-speed reading, circumventing the negative effects of
background interference.
Use Caret (^)
The UseCaret propeties is set to true by default which is only
apply to Code128, UccEan128, Sscc18, Scc14, PDF417, MacroPDF417, QR
Code, and DataMatrix etc. where full ASCII is accepted as encoding.
The 3 digits data following the caret will be treated as ASCII
code, e.g. ^010 is \n; ^009 is a tab; ^065 is character 'A'.
QRCode Properties
Besides the properties to general barcode, the following properties
belongs to QRCode only:
QRCodeBarSize gets or sets the narrow bar
size in inches for QRCode. Default is 0.02 inch.
QRCodeEncoding gets or sets the QR Code
Encoding to use on that symbology.. Default is Auto encoding. Four
type of mode available:
- Binary: it is used to encode all 256 8-bit byte values.
- Numeric: it is used to encode numeric data.
- Alphanumeric: it is used to encode all printable ASCII
character data.
- Auto: it switches between the other three encoding method for
small size.
QRCodeErrorCorrectionLevel gets or sets
the Error Correction Level for QRCode (Level L, M, Q, H). Default
is M.
QRCodeVersion gets or sets the QRCode
Version. Default is Auto.
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