Softek Software Barcode Reading Toolkits
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Help -> Methods -> ScanBarCode

The Softek Barcode Reader SDK extracts barcode information from images and bitmaps.

ScanBarCode

Overview

ScanBarCode(file)

Scan the specified TIF, BMP or JPEG file for bar code strings and return the number of bar codes found in the file. The following formats are supported:

  • TIF - color files should be uncompressed.
  • BMP - color (24 bit only) and monochrome, single plane.
  • JPEG - color and monochrome

If the returned value is less than 0 then an error has occurred:

Value Comment
-1 Error opening file
-2 File is Multi Plane
-3 Invalid number of bits per sample
-4 Memory allocation error
-5 Invalid TIF photometric value
-6, -7 or -8 The trial period on a demo version has either expired or this trial version is no longer valid for installation.

n is the index to the barcode string to be retrieved and is indexed from 1.

The following strings can be returned for patch codes - "Type I", "Type II", "Type III", "Type IV", "Type VI" and "Type T".

Visual Basic using the OCX

count = [form.]SoftekBarcode.ScanBarCode(file)

Visual Basic using the DLL

Private Declare Function stScanBarCode Lib "SoftekBarcode" (ByVal strFile As String) As Integer
count = stScanBarCode(file)

Visual Basic using COM

oBar = CreateObject("SoftekATL.Barcode")
.........
oBar.ScanBarCode(file)
count = oBar.BarCodeCount

VB.Net using the DLL

Private Declare Function stScanBarCode Lib "SoftekBarcode" (ByVal strFile As String) As Short
count = stScanBarCode(file)

VB.Net using the SoftekBarcode Wrapper Class

Dim barcode As SoftekBarcode
..........
count = barcode.ScanBarCode(file)

VB.Net using the SoftekBarcodeLib Managed Component

Dim barcode As SoftekBarcodeLib.BarcodeReader
..........
barcode = New SoftekBarcodeLib.BarcodeReader()
..........
barcode.ScanBarCode(file)

Visual C++ Using the OCX

short ScanBarCode(file)

Visual C++ Using the DLL

short __stdcall stScanBarCode(LPCTSTR file);