GdPicture Imaging Forums

Code: Select all

	private void AddBarodeRectangle(int DocumentImgID, int BarcodeNo)
	{            
		int x1 = GdLib.Barcode1DReaderGetBarcodeX1(BarcodeNo);
		int x2 = GdLib.Barcode1DReaderGetBarcodeX2(BarcodeNo);
		int x3 = GdLib.Barcode1DReaderGetBarcodeX3(BarcodeNo);
		int x4 = GdLib.Barcode1DReaderGetBarcodeX4(BarcodeNo);
		int y1 = GdLib.Barcode1DReaderGetBarcodeY1(BarcodeNo);
		int y2 = GdLib.Barcode1DReaderGetBarcodeY2(BarcodeNo);
		int y3 = GdLib.Barcode1DReaderGetBarcodeY3(BarcodeNo);
		int y4 = GdLib.Barcode1DReaderGetBarcodeY4(BarcodeNo);

		int left = x1;
		int top = y1;
		int right = x2;
		int bottom = y4;

		if (x3 < x1)
			left = x3;
		if (y2 < y1)
			top = y2;
		if (x4 > x2)
			right = x4;
		if (y3 > y4)
			bottom = y3;

		int width = right - left;
		int height = bottom - top;

		int margin = (int)(((double)height + (double)width) / 2) / 5;

		GdLib.DrawRectangle(DocumentImgID, left - margin, top - margin, width + margin * 2, height + margin * 2, 20, Color.Red, true);
	}

Code: Select all

	protected bool SplittTifByBarcode(string path, int page, ref int DocumentImgID, int SourceImageID)
	{
		bool result = false;
		if (GdLib.Barcode1DReaderDoScan(SourceImageID, Barcode1DReaderScanMode.BestQuality) == GdPictureStatus.OK)
		{
			int BarcodeCount = GdLib.Barcode1DReaderGetBarcodeCount();                
			if (BarcodeCount > 0)
			{
				if (DocumentImgID != 0)
					GdLib.ReleaseGdPictureImage(DocumentImgID);

				string value = GdLib.Barcode1DReaderGetBarcodeValue(BarcodeCount);
				DocumentImgID = GdLib.CreateClonedGdPictureImageI(SourceImageID);                    
				GdLib.TiffSaveAsMultiPageFile(DocumentImgID, "testfile.tif", (TiffCompression)Config.TiffCompressionMode);
				result = true;

				#warning "This works if image comes from twain but not from multipage tiff"
                               int tmpID = GdLib.CreateClonedGdPictureImage(DocumentImgID);
				AddBarodeRectangle(DocumentImgID, BarcodeCount);
			   
			}
			else
				GdLib.TiffAddToMultiPageFile(DocumentImgID, SourceImageID);
		}
		return result;
	}

Code: Select all

	int TiffImgID = 0;
	int page = 0;
	int TwainImgID = 0;
	int DocumentImgID = 0;

	bool barcodeFound;
	string path = Guid.NewGuid() + ".tif";

	do{
		TwainImgID = GdLib.TwainAcquireToGdPictureImage(IntPtr.Zero);
		if (TwainImgID != 0)
		{
			page++;
			barcodeFound = this.SplittTifByBarcode(path, page, ref DocumentImgID, TwainImgID);
			//we found valid barcode 
			//so we dont need to save the scan as a complete file in scandirectory
			if (!barcodeFound)
			   TiffImgID = WriteTifFile(TiffImgID, TwainImgID);
		}

	} while ((TwainImgID != 0) && (GdLib.TwainGetState() > GdPicture.TwainStatus.TWAIN_SOURCE_OPEN));


	if (DocumentImgID != 0)
		GdLib.ReleaseGdPictureImage(DocumentImgID);

	GdLib.TiffCloseMultiPageFile(TiffImgID);
	GdLib.ReleaseGdPictureImage(TiffImgID);
	GdLib.TwainCloseSourceManager(IntPtr.Zero);
	GdLib.TwainCloseSource();

Code: Select all

	int page = 0;
	int DocumentImgID = 0;
	int TiffImageID = GdLib.TiffCreateMultiPageFromFile(path);
	int pageCount = GdLib.TiffGetPageCount(TiffImageID);

	//iterate over pages of multipage source tiff
	for (page = 1; page <= pageCount; page++)
	{
		//select the current tiff TiffImageID
		if (GdLib.TiffSelectPage(TiffImageID, page) == GdPictureStatus.OK)
		{
			//scan the selected page for barcodes
			SplittTifByBarcode(path, page, ref DocumentImgID, TiffImageID);
		}
	}

	if (DocumentImgID != 0)
		GdLib.ReleaseGdPictureImage(DocumentImgID);

	GdLib.TiffCloseMultiPageFile(TiffImageID);
	GdLib.ReleaseGdPictureImage(TiffImageID);

Code: Select all

      int left = x1;
      int top = y1;
      int right = x2;
      int bottom = y4;

      if (x3 < x1)
         left = x3;
      if (y2 < y1)
         top = y2;
      if (x4 > x2)
         right = x4;
      if (y3 > y4)
         bottom = y3;

      int width = right - left;
      int height = bottom - top;

      int margin = (int)(((double)height + (double)width) / 2) / 5;

Code: Select all

     
 Dim X1, X2, X3, X4, Y1, Y2, Y3, Y4 As Integer

For i = 1 To oGdPictureImaging.Barcode1DReaderGetBarcodeCount
   X1 = oGdPictureImaging.Barcode1DReaderGetBarcodeX1(i) 
   X2 = oGdPictureImaging.Barcode1DReaderGetBarcodeX2(i) 
   X3 = oGdPictureImaging.Barcode1DReaderGetBarcodeX3(i)
   X4 = oGdPictureImaging.Barcode1DReaderGetBarcodeX4(i)

   Y1 = oGdPictureImaging.Barcode1DReaderGetBarcodeY1(i) 
   Y2 = oGdPictureImaging.Barcode1DReaderGetBarcodeY2(i) 
   Y3 = oGdPictureImaging.Barcode1DReaderGetBarcodeY3(i)
   Y4 = oGdPictureImaging.Barcode1DReaderGetBarcodeY4(i) 

   oGdPictureImaging.DrawLine(m_ImageID, X1, Y1, X2, Y2, 1, Color.Red, True)
   oGdPictureImaging.DrawLine(m_ImageID, X2, Y2, X3, Y3, 1, Color.Red, True)
   oGdPictureImaging.DrawLine(m_ImageID, X3, Y3, X4, Y4, 1, Color.Red, True)
   oGdPictureImaging.DrawLine(m_ImageID, X4, Y4, X1, Y1, 1, Color.Red, True)
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