TwainBarCodeGetValue Method (GdPictureImaging)

In This Topic

Returns the text of a bar code found on the last acquired image.

Syntax

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

'Declaration
 
Public Function TwainBarCodeGetValue( _
   ByVal BarCodeNo As Integer _
) As String

public string TwainBarCodeGetValue( 
   int BarCodeNo
)

public function TwainBarCodeGetValue( 
    BarCodeNo: Integer
): String;

public function TwainBarCodeGetValue( 
   BarCodeNo : int
) : String;

public: string* TwainBarCodeGetValue( 
   int BarCodeNo
)

public:
String^ TwainBarCodeGetValue( 
   int BarCodeNo
)

Parameters

BarCodeNo: The barcode number. Must be value between 1 and the number of detected barcodes.

Return Value

The barcode text.

Remarks

Before using this method make sure that the barcode detection was enabled by the TwainSetBarcodeDetection() method. Use the TwainBarCodeGetCount() method to determine how many barcodes have been detected on the last acquired image.

Reference

GdPictureImaging Class
GdPictureImaging Members
TwainIsBarcodeDetectionAvailable Method
TwainIsBarcodeDetectionEnabled Method
TwainSetBarcodeDetection Method
TwainBarCodeGetCount Method