Help -> Properties -> Code39Checksum

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

Code39Checksum 

Overview

When True the toolkit will only report Code 39 barcodes where the last character is a valid checksum for the rest of the barcode. The toolkit expects a Code 39 checksum to be calculated using modulus-43. 

For example, the barcode "7654R" encodes the number "7654" with a checksum character of "R". Using default settings the toolkit will report this barcode as "7654R" because it does not expect the last character to be a checksum. If ShowCheckDigit is false and Code39Checksum is true then the toolkit will validate the "R" as the checksum and then return the string "7654". This also applies if an application is using the NumericBarcode property. Unless Code39Checksum is set to True then this barcode would not be reported by the toolkit because it contains a non-numeric character.

Default Value: False

Visual Basic using the OCX

[form.]SoftekBarcode.Code39Checksum = value

Visual Basic using the DLL

Private Declare Function stGetCode39Checksum Lib "SoftekBarcode" () As Boolean
Private Declare Function stSetCode39Checksum Lib "SoftekBarcode" (ByVal newValue As Boolean) As Boolean
stSetCode39Checksum (value)
value = stGetCode39Checksum ()

Visual Basic using COM

oBar = CreateObject("SoftekATL.Barcode")
.........
oBar.Code39Checksum = value
value = oBar.Code39Checksum

VB.Net using the DLL

Private Declare Function stGetCode39Checksum Lib "SoftekBarcode" () As Boolean
Private Declare Function stSetCode39Checksum Lib "SoftekBarcode" (ByVal newValue As Boolean) As Boolean
stSetCode39Checksum (value)
value = stGetCode39Checksum ()

VB.Net using the SoftekBarcode Wrapper Class

Dim barcode As SoftekBarcode
..........
barcode.SetCode39Checksum(value)
value = barcode.GetCode39Checksum()

VB.Net using the SoftekBarcodeLib Managed Component

Dim barcode As SoftekBarcodeLib.BarcodeReader
Dim value As Bool
..........
barcode = New SoftekBarcodeLib.BarcodeReader()
..........
barcode.Code39Checksum = value
value = barcode.Code39Checksum

Visual C++ Using the OCX

BOOL GetCode39Checksum() ;
void SetCode39Checksum(BOOL value);

Visual C++ Using the DLL

BOOL __stdcall stGetCode39Checksum();
BOOL __stdcall stSetCode39Checksum(BOOL bNewValue);