Barcode index. Must be between 1 and BarcodeQRReaderGetBarcodeCount returned value.
Example





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GdPicture14 Namespace / GdPictureImaging Class / BarcodeQRReaderGetBarcodeY2 Method

BarcodeQRReaderGetBarcodeY2 Method (GdPictureImaging)

In This Topic
Returns the Y position (in pixels) of the top-right corner of a barcode detected by the BarcodeQRReaderDoScan method. If ROI has been set, this coordinate is relative to the used ROI.
Syntax
'Declaration

 


Public Function BarcodeQRReaderGetBarcodeY2( _

   ByVal BarcodeNo As Integer _

) As Integer
public int BarcodeQRReaderGetBarcodeY2( 

   int BarcodeNo

)
public function BarcodeQRReaderGetBarcodeY2( 

    BarcodeNo: Integer

): Integer; 
public function BarcodeQRReaderGetBarcodeY2( 

   BarcodeNo : int

) : int;
public: int BarcodeQRReaderGetBarcodeY2( 

   int BarcodeNo

) 
public:

int BarcodeQRReaderGetBarcodeY2( 

   int BarcodeNo

)

Parameters

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

Return Value

The barcode Y 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
Finding QrCodes in an image and writeing complete barcodes info into a file. 
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())

{

    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.jpg", false);

 

    // Set to 0, so all the QR Codes in the image should be found.

    int expectedBarcodes = 0;

 

    // Perform scanning at best speed, ignoring very damaged barcodes.

    BarcodeQRReaderScanMode mode = BarcodeQRReaderScanMode.BestSpeed;

 

    // Start the QrCode scanning process and write complete info into a text file.

    gdpictureImaging.BarcodeQRReaderDoScan(imageID, mode, expectedBarcodes);

 

    using (System.IO.StreamWriter file = new System.IO.StreamWriter("QrCodes.txt"))

    {

        int barcodesFound = gdpictureImaging.BarcodeQRReaderGetBarcodeCount();

 

        for (int i = 1; i <= barcodesFound; i++)

        {

            // Decoded information.

            file.WriteLine("Decoded info = " + gdpictureImaging.BarcodeQRReaderGetBarcodeValue(i));

 

            // Confidence in result, in percentage (values from 0 to 100).

            file.WriteLine("Confidence = " + gdpictureImaging.BarcodeQRReaderGetBarcodeConfidence(i));

 

            // The version of a Qr Code, in range 0-40. The higher the version, the larger the barcode is.

            file.WriteLine("Version = " + gdpictureImaging.BarcodeQRReaderGetVersion(i));

 

            // The skew angle of the barcode, in degrees.

            file.WriteLine("Skew angle = " + gdpictureImaging.BarcodeQRReaderGetBarcodeSkewAngle(i));

 

            // The raw bytes decoded. It was post-processed to find the correct decoded info based on detected Encoding.

            file.WriteLine("Raw bytes = " + gdpictureImaging.BarcodeQRReaderGetBarcodeValueRAW(i));

 

            // The barcode position, given by the coordinates of the corners.

            file.WriteLine("Position =  Top-Left=["

                + gdpictureImaging.BarcodeQRReaderGetBarcodeX1(i) + ", " + gdpictureImaging.BarcodeQRReaderGetBarcodeY1(i)

                + "] Top-Right=[" + gdpictureImaging.BarcodeQRReaderGetBarcodeX2(i) + ", " + gdpictureImaging.BarcodeQRReaderGetBarcodeY2(i)

                + "] Bottom-Right=[" + gdpictureImaging.BarcodeQRReaderGetBarcodeX3(i) + ", " + gdpictureImaging.BarcodeQRReaderGetBarcodeY3(i)

                + "] Bottom-Left=[" + gdpictureImaging.BarcodeQRReaderGetBarcodeX4(i) + ", " + gdpictureImaging.BarcodeQRReaderGetBarcodeY4(i) + "]");

        }

    }

 

    // Release used resources.

    gdpictureImaging.BarcodeQRReaderClear();

    gdpictureImaging.ReleaseGdPictureImage(imageID);

}
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members