BarcodeQRReaderGetBarcodeY2 Method (GdPictureImaging)
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.
public int BarcodeQRReaderGetBarcodeY2(
int
)
public function BarcodeQRReaderGetBarcodeY2(
: Integer
): Integer;
public function BarcodeQRReaderGetBarcodeY2(
: int
) : int;
public: int BarcodeQRReaderGetBarcodeY2(
int
)
public:
int BarcodeQRReaderGetBarcodeY2(
int
)
'Declaration
Public Function BarcodeQRReaderGetBarcodeY2( _
ByVal As Integer _
) As Integer
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.
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);
}