GdPicture.NET Reference Guide
BarcodeMicroQRReaderClear Method (GdPictureImaging)
Example 





GdPicture14 Namespace > GdPictureImaging Class : BarcodeMicroQRReaderClear Method
Releases from memory all information about latest Micro QR barcode detection.
Syntax
'Declaration
 
Public Sub BarcodeMicroQRReaderClear() 
public void BarcodeMicroQRReaderClear()
public procedure BarcodeMicroQRReaderClear(); 
public function BarcodeMicroQRReaderClear();
public: void BarcodeMicroQRReaderClear(); 
public:
void BarcodeMicroQRReaderClear(); 
Remarks

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

Example
Detecting all Micro QR barcodes in an image and then releasing the Micro QR barcode information.
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