We often get emails asking why the ScanBarCode method in the SoftekATL.Barcode OCX object returns the value 0 when it works fine in other interfaces. The reason for this is that in the COM interface the number of barcodes found by the ScanBarCode method is stored in the BarCodeCount property. For example, the following code is
I have now spent quite a while dealing with troublesome images with the Softek Barcode Reader SDK and have found several tricks which solve almost all problems which could arise. The issue is almost always image quality. Poorly scanned colour images or simply a low resolution leading to the bars coming together are often the
This article explains how to configure your system to allow an ASP application to use the Softek Barcode Reader SDK to process PDF Documents on an x64 system. Symptom: ScanBarCode returns -1 and GetLastError returns 3001. Description: CoCreateInstance is failing and is probably returning E_ACCESSDENIED. This is because IIS_IUSRS does not have permission for Local
The following VBScript shows how to create a tool that will read the value of a barcode from an image and write the value to a text file. Make sure that SofteATL.dll has been registered before attempting to run. This can be done by right clicking on REGISTER.BAT and selecting “Run as Administrator”. myscript.vbs Dim
The SoftekBarcode.dll includes a set of functions suitable for use in multi-threaded applications. The multi-threaded functions all require a handle to the toolkit. This is created using the mtCreateBarcodeSession function and released using the mtDestroyBarcodeSession function: hBarcode = mtCreateBarcodeInstance() nBarcodes = mtScanBarCode(hBarcode, “input.tif”) …process the result in some way mtDestroyBarcodeInstance(hBarcode) All the multi-threaded functions
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
Version 7.3.1 was released on February 30th March 2010. Release notes available here. Please note this is no longer the latest version. 1. GS-1 Databar GS-1 Databar support has been added to toolkit. This includes RSS-14, RSS-14 Stacked, RSS Truncated, RSS Limited, RSS Expanded and RSS Expanded Stacked. There is also support for supplemental information
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