barcode reading software
If whilst trying to use the Softek Barcode Reader Toolkit it returns to error message “Failed to load SoftekBarcode.dll” then a possible cause of the problem may be that you have the wrong version of the .dll for the system you are using. The following should help to remedy this problem: When you create an …
A recent report by Scanlife into mobile barcode use shows that barcode scans from mobile phones (predominantly scan of QR Codes) are on the rise with the worldwide rate of scans now exceeding 180 scans per minute. The report also shows that whilst 23% of users since 2009 are returning users, 77% are new users …
Detailed description of work-around for AVCaptureVideoPreviewLayer problem in IOS 4.1 IOS 4.1 seems to contain a critical bug in the AVCaptureVideoPreviewLayer which causes app’s to freeze when an instance of the class is created. The normal way to use AVCaptureVideoPreviewLayer is as follows: // Create the session session = [[AVCaptureSession alloc] init]; // Configure …
Following testing on iPhone OS 4.0 beta, the following problems were identified in version 7.3.1d of the SDK and have been corrected in version 7.3.1e: 1. Sample XCode application aborting with error EXEC_BAD_ACCESS. 2. Sample XCode applications froze when Cancel button touched in camera view finder. Both of the above problems were corrected by changes to …
A UPC-E barcode is actually an EAN-13/UPC-A barcode that has had certain digits removed to create an 8 digit number. Only certain EAN-13/UPC-A barcodes can go through this process. For example, the UPC-A barcode “023456000073 ” can be suppressed to the UPC-E value “02345673” and restored to it’s original value by the barcode reader. The Softek …
Version 7.3.1 was released on February 3rd 2010. Release notes available here. Please not this is no longer the latest version. 1. GS-1 Databar GS-1 Databar support has been added to toolkit in the new version. This includes RSS-14, RSS-14 Stacked, RSS Truncated, RSS Limited, RSS Expanded and RSS Expanded Stacked. There is also support …
When distributing SoftekBarcodeLib2.dll you may find that you get a “side by side” error message which references the component. For Version 7.4.1 and later… For x86 based systems, the solution is to install the Microsoft Visual C++ 2008 SP1 Redistributable Package (x86) from the following link: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=a5c84275-3b97-4ab7-a40d-3802b2af5fc2&displaylang=en For x64 based systems, the solution is to install the Microsoft …
The graph below is a representation of a single scan line bisecting the image of the barcode shown underneath. The scale on the Y-axis represents pixel values with distance in pixels on the X-axis. Note that the value of a pixel is derived from the RGB value using the formula (R + G + B) / 3. The …
2-D barcode formats such as PDF-417 can encode a huge character set, which means that the barcode reader toolkit needs to encode characters outside the normal ASCII range. If the Encoding property is set to 2 then the toolkit will use Unicode encoding, whereby characters can be represented by the string &#N; where N is …
UPC-A barcodes are a subset of EAN-13. For example, the UPC-A barcode “016000336100” is the same as the EAN-13 barcode “0016000336100”. In fact, UPC-A barcodes are the sub-set of EAN-13 barcodes that start with a 0. The ReadEAN13 property controls whether any barcodes of type EAN-13 are recognized – and this includes UPC-A, whether or …
