GdPicture.NET Reference Guide
BarcodeMicroQRReaderGetBarcodeX2 Method (GdPictureImaging)
Example 





GdPicture14 Namespace > GdPictureImaging Class : BarcodeMicroQRReaderGetBarcodeX2 Method
Barcode index. Must be between 1 and BarcodeMicroQRReaderGetBarcodeCount returned value.
Returns the X position (in pixels) of the top-right corner of a barcode detected by the BarcodeMicroQRReaderDoScan method. If ROI has been set, this coordinate is relative to the used ROI.
Syntax
'Declaration
 
Public Function BarcodeMicroQRReaderGetBarcodeX2( _
   ByVal BarcodeNo As Integer _
) As Integer
public int BarcodeMicroQRReaderGetBarcodeX2( 
   int BarcodeNo
)
public function BarcodeMicroQRReaderGetBarcodeX2( 
    BarcodeNo: Integer
): Integer; 
public function BarcodeMicroQRReaderGetBarcodeX2( 
   BarcodeNo : int
) : int;
public: int BarcodeMicroQRReaderGetBarcodeX2( 
   int BarcodeNo
) 
public:
int BarcodeMicroQRReaderGetBarcodeX2( 
   int BarcodeNo
) 

Parameters

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

Return Value

The barcode X position of the top-right corner; relative to the ROI, if any is defined.
Remarks

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

Example
Detecting all Micro QR barcodes in an image and drawing a rectangle around them.
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.BarcodeMicroQRReaderDoScan(ImageID) = GdPictureStatus.OK Then
      'Start Micro QR barcode scanning process
      Dim BarcodeCount As Integer = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeCount
      If BarcodeCount > 0 Then
         For i As Integer = 1 To BarcodeCount
            MessageBox.show("Barcode No: " & Str(i))
            MessageBox.show("Value: " & oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeValue(i))
         Next
         Dim X1, X2, X3, X4, Y1, Y2, Y3, Y4 As Integer
         'LeftArea, TopArea are coordinates used by SetROI()
         For i = 1 To oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeCount
            X1 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeX1(i) + LeftArea
            X2 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeX2(i) + LeftArea
            X3 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeX3(i) + LeftArea
            X4 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeX4(i) + LeftArea
            Y1 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeY1(i) + TopArea
            Y2 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeY2(i) + TopArea
            Y3 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeY3(i) + TopArea
            Y4 = oGdPictureImaging.BarcodeMicroQRReaderGetBarcodeY4(i) + TopArea
            oGdPictureImaging.DrawLine(ImageID, X1, Y1, X2, Y2, 1, Color.Red, True)
            oGdPictureImaging.DrawLine(ImageID, X2, Y2, X3, Y3, 1, Color.Red, True)
            oGdPictureImaging.DrawLine(ImageID, X3, Y3, X4, Y4, 1, Color.Red, True)
            oGdPictureImaging.DrawLine(ImageID, X4, Y4, X1, Y1, 1, Color.Red, True)
         Next
      Else
         MessageBox.show("No barcode detected !")
      End If
      oGdPictureImaging.BarcodeMicroQRReaderClear() 'Release detection info from memory
   End If
   oGdPictureImaging.ReleaseGdPictureImage(ImageID)
End If
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members