Barcode1DReaderGetBarcodeValue(Int32) Method

In This Topic

Returns the value of a barcode detected by the Barcode1DReaderDoScan method.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Overloads Function Barcode1DReaderGetBarcodeValue( _
   ByVal BarcodeNo As Integer _
) As String

public string Barcode1DReaderGetBarcodeValue( 
   int BarcodeNo
)

public function Barcode1DReaderGetBarcodeValue( 
    BarcodeNo: Integer
): String;

public function Barcode1DReaderGetBarcodeValue( 
   BarcodeNo : int
) : String;

public: string* Barcode1DReaderGetBarcodeValue( 
   int BarcodeNo
)

public:
String^ Barcode1DReaderGetBarcodeValue( 
   int BarcodeNo
)

Parameters

BarcodeNo: Barcode index. Must be between 1 and Barcode1DReaderGetBarcodeCount returned value.

Return Value

The barcode data.

Remarks

This method is used in the "Barcode Recognition" Demo.

For UCC / EAN-128 codes FNC1 control character is mapped to the <GS> char (ASCII code 29).

Example

Finding all 1D barcodes in a given image and saving their information to a file.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.jpg");
 
    // Specify 1D barcode search types to be Code39 and Code128.
    Barcode1DReaderType barcodeType = Barcode1DReaderType.Barcode1DReaderCode39 | Barcode1DReaderType.Barcode1DReaderCode128;
 
    // Start the barcode scanning process. The ExpectedCount parameter is 0, all the barcodes should be retrieved.
    gdpictureImaging.Barcode1DReaderDoScan(imageID, Barcode1DReaderScanMode.BestQuality, barcodeType, false, 0);
 
    using (System.IO.StreamWriter file = new System.IO.StreamWriter("barcodes.txt"))
    {
        int barcodesFound = gdpictureImaging.Barcode1DReaderGetBarcodeCount();
        for (int i = 1; i <= barcodesFound; i++)
        {
            file.WriteLine(gdpictureImaging.Barcode1DReaderGetBarcodeValue(i));
        }
    }
 
    // Release used resources.
    gdpictureImaging.Barcode1DReaderClear();
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}

Reference

GdPictureImaging Class
GdPictureImaging Members
Overload List
GetStat Method
CreateGdPictureImageFromFile(String) Method
Barcode1DReaderDoScan(Int32) Method
Barcode1DReaderGetBarcodeCount Method
Barcode1DReaderClear Method
ReleaseGdPictureImage Method