GdPicture.NET Reference Guide
BarcodeDataMatrixReaderGetBarcodeSkewAngle Method (GdPictureImaging)
Example 





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

Parameters

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

Return Value

The barcode angle in degrees. The angle is measured clockwise relative to the horizontal axis of the image.
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