GdPicture.NET Reference Guide
PatchCodeReaderClear Method (GdPictureImaging)
Example 





GdPicture14 Namespace > GdPictureImaging Class : PatchCodeReaderClear Method
Releases from memory all information about latest Patch Code Patch Code detection.
Syntax
'Declaration
 
Public Sub PatchCodeReaderClear() 
public void PatchCodeReaderClear()
public procedure PatchCodeReaderClear(); 
public function PatchCodeReaderClear();
public: void PatchCodeReaderClear(); 
public:
void PatchCodeReaderClear(); 
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