GdPicture.NET Reference Guide
BarcodeDataMatrixReaderGetBarcodeColumns Method (GdPictureImaging)
Example 





GdPicture14 Namespace > GdPictureImaging Class : BarcodeDataMatrixReaderGetBarcodeColumns Method
Barcode index. Must be between 1 and BarcodeDataMatrixReaderGetBarcodeCount returned value.
Returns the number of columns of a barcode detected by the BarcodeDataMatrixReaderDoScan method.
Syntax
'Declaration
 
Public Function BarcodeDataMatrixReaderGetBarcodeColumns( _
   ByVal BarcodeNo As Integer _
) As Integer
public int BarcodeDataMatrixReaderGetBarcodeColumns( 
   int BarcodeNo
)
public function BarcodeDataMatrixReaderGetBarcodeColumns( 
    BarcodeNo: Integer
): Integer; 
public function BarcodeDataMatrixReaderGetBarcodeColumns( 
   BarcodeNo : int
) : int;
public: int BarcodeDataMatrixReaderGetBarcodeColumns( 
   int BarcodeNo
) 
public:
int BarcodeDataMatrixReaderGetBarcodeColumns( 
   int BarcodeNo
) 

Parameters

BarcodeNo
Barcode index. Must be between 1 and BarcodeDataMatrixReaderGetBarcodeCount returned value.

Return Value

The number of columns of the barcode.
Remarks

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

Example
Detecting all DataMatrix barcodes in an image.
Dim oGdPictureImaging As New GdPicture.GdPictureImaging
Dim ImageID As Integer = oGdPictureImaging.CreateGdPictureImageFromFile("") 'Prompt the user to select an image
If imageId <> 0 Then
   If oGdPictureImaging.BarcodeDataMatrixReaderDoScan(ImageID) = GdPictureStatus.OK Then 'Start DataMatrix barcode scanning process
      Dim BarcodeCount As Integer = oGdPictureImaging.BarcodeDataMatrixReaderGetBarcodeCount
      If BarcodeCount > 0 Then
         For i As Integer = 1 To BarcodeCount
            MessageBox.show("Barcode No: " & Str(i))
            MessageBox.show("Value: " & oGdPictureImaging.BarcodeDataMatrixReaderGetBarcodeValue(i))
            MessageBox.show("Rows: " & Str(oGdPictureImaging.BarcodeDataMatrixReaderGetBarcodeRows(i)))
            MessageBox.show("Columns: " & Str(oGdPictureImaging.BarcodeDataMatrixReaderGetBarcodeSkewAngle(i)))
            MessageBox.show("Angle: " & Str(oGdPictureImaging.BarcodeDataMatrixReaderGetBarcodeColumns(i)))
         Next
      Else
         MessageBox.show("No barcode detected !")
      End If
      oGdPictureImaging.BarcodeDataMatrixReaderClear() 'Release detection info from memory
   End If
   oGdPictureImaging.ReleaseGdPictureImage(ImageID)
End If
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members