Contents - Index - Previous - Next


SecurityLevel property

See also Example

Applies to
TpsPDF417 class

Declaration
property
SecurityLevel: psPDF417ErrorCorrection;

psPDF417ErrorCorrection = (psPDF417AutoEC, psPDF417Error0, psPDF417Error1,
psPDF417Error2, psPDF417Error3, psPDF417Error4,
psPDF417Error5, psPDF417Error6, psPDF417Error7, psPDF417Error8);


Description
One of PDF417's most valuable features is its ability to allow correction of errors. The number of damaged codewords (NMax) which may be recovered depends on the security level.

 psPDF417AutoEC - set error level automatic depend on number of used codewords
 psPDF417Error0 - no error correction, NMax=0
 psPDF417Error1 - NMax = 2
 psPDF417Error2 - NMax = 6  
 psPDF417Error3 - NMax = 14
 psPDF417Error4 - NMax = 30
 psPDF417Error5 - NMax = 62
 psPDF417Error6 - NMax = 126
 psPDF417Error7 - NMax = 254
 psPDF417Error8 - NMax = 510

Tip:
 Use SecurityLevel=psPDF417AutoEC , this is good for print optimized barcode.