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QS-Barcode SDK  History

QS-Barcode SDK, barcode recognition from images, tools for developers


Please note: This history is also relevant for QS-Beleg and QS-DocumentAssembler because these products internally use the barcode library from the QS-Barcode SDK

Date Change
11.01.2012 QS-Barcode SDK 4.8.2.91
Fixed Error in the OCX component when recognising PDF documents corrected
10.01.2012 QS-Barcode SDK 4.8.2.90
New Optimized search for  Aztec barcodes with trapezoidal distortion
11.11.2011 QS-Barcode SDK 4.8.2.88
New Optimized the search for PDF417 barcodes
New Optimized the search for linear barcodes
Fixed Error in the detection of  barcodes with identical content fixed
14.07.2011 QS-Barcode SDK 4.8.2.81
Fixed Incorrect return code "BC_LOW_MEMORY"  for PDF417 fixed
21.06.2011 QS-Barcode SDK 4.8.2.80
Fixed Dense search for linear bar codes at 8 degrees skew angle fixed
16.06.2011 QS-Barcode SDK 4.8.2.79
Fixed Memory error while searching for PDF417 bar codes resolved.
10.06.2011 QS-Barcode SDK 4.8.2.78
Fixed Error in the recognition of rotated, rectangular data matrix bar codes resolved.
31.05.2011 QS-Barcode SDK 4.8.2.77
New New Interface QSReadBarcode3/QSBarcode3 for directly passing a configuration file for image enhancement
New Support  for  PDF 1.8
Improved Improved Aztec recognition, especially when the bar code is of poor quality
Fixed Problem checking the height of a bar code
Fixed Error in passing the results over to VB6 resolved
Fixed Error in checksum calculation for Code 11, check digit C fixed

12.04.2010 DataMatrix:
When using the barcode library in C# there was a crash after releasing memory when many potential results have been found. Furthermore a general memory error was fixed that sometimes led to a crash.
12.04.2010 QR-Code
When the barcode was generated incorrectly, sometimes characters not belonging to the result were appended to the result.
12.04.2010 Aztec
The detection of the bullseye has been improved. This increases the possibility that barcodes of worse quality will be detected.
27.07.2009 DataMatrix
Improvement of the detection of the finder angle for DataMatrix with low resolution (modul size < 2*tolerance)
24.07.2009 PostNet Codes
Noticeable improvement and speed-up locating the position of the barcode, support for all angles
15.07.2009 QS-Barcode Version 4.8
New: Support for 2-state und 4-state Post Ident Codes (Attention: BETA-Version)
Royal Mail Barcode, Dutch Code KIX, Australian, Canadian CPC, Code One, Intelligent Mail Barcode IMB, PostBar, PostNet, Planet Code
15.07.2009 Setup
A problem installing the C++ runtime libraries was fixed
22.06.2009 Linear Barcodes, EAN13
EAN13 barcodes where not detected when they were printed beside a second barcode and a fixed length was set
14.05.2009 Aztec Code
For the internal codeset 5 the last 4 bits at the end were not handled
28.04.2009 Code39
Improved recognition for those code words that have three thick lines
16.04.2009 DataMatrix
Intensive search can now be done with the orientation parameter or via the .ini file



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