GdPicture.NET Reference Guide
PatchCodeReaderGetCodeY4 Method (GdPictureImaging)
Example 





GdPicture14 Namespace > GdPictureImaging Class : PatchCodeReaderGetCodeY4 Method
Patch Code index. Must be between 1 and PatchCodeReaderGetCodeCount returned value.
Returns the Y position (in pixels) of the bottom-left corner of a Patch Code detected by the PatchCodeReaderDoScan method.
Syntax
'Declaration
 
Public Function PatchCodeReaderGetCodeY4( _
   ByVal PatchCodeNo As Integer _
) As Integer
public int PatchCodeReaderGetCodeY4( 
   int PatchCodeNo
)
public function PatchCodeReaderGetCodeY4( 
    PatchCodeNo: Integer
): Integer; 
public function PatchCodeReaderGetCodeY4( 
   PatchCodeNo : int
) : int;
public: int PatchCodeReaderGetCodeY4( 
   int PatchCodeNo
) 
public:
int PatchCodeReaderGetCodeY4( 
   int PatchCodeNo
) 

Parameters

PatchCodeNo
Patch Code index. Must be between 1 and PatchCodeReaderGetCodeCount returned value.

Return Value

The Patch Code Y position of the bottom-left corner.
Remarks

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

Example
Finding patchcodes in an image and writing complete barcodes info into a file.
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.jpg", false);
 
    // Start the patchcodes scanning process and write complete infos into a text file.
    gdpictureImaging.PatchCodeReaderDoScan(imageID);
 
    using (System.IO.StreamWriter file = new System.IO.StreamWriter("pathcodes.txt"))
    {
        int pathcodesFound = gdpictureImaging.PatchCodeReaderGetCodeCount();
 
        for (int i = 1; i <= pathcodesFound; i++)
        {
            // Patchcodes type, possible values are 1, 2, 4, 8, 16 or 32.
            PatchCodeType type = gdpictureImaging.PatchCodeReaderGetCodeType(i);
            file.WriteLine("Patchcode type = " + type.ToString());
 
            // The pathcode position, given by the coordinates of the corners.
            file.WriteLine("Position =  Top-Left=["
                + gdpictureImaging.PatchCodeReaderGetCodeX1(i) + ", " + gdpictureImaging.PatchCodeReaderGetCodeY1(i)
                + "] Top-Right=[" + gdpictureImaging.PatchCodeReaderGetCodeX2(i) + ", " + gdpictureImaging.PatchCodeReaderGetCodeY2(i)
                + "] Bottom-Right=[" + gdpictureImaging.PatchCodeReaderGetCodeX3(i) + ", " + gdpictureImaging.PatchCodeReaderGetCodeY3(i)
                + "] Bottom-Left=[" + gdpictureImaging.PatchCodeReaderGetCodeX3(i) + ", " + gdpictureImaging.PatchCodeReaderGetCodeY4(i) + "]");
        }
    }
 
    // Release used resources.
    gdpictureImaging.PatchCodeReaderClear();
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members