ForeColor Property (BarcodeReadOptions)

[CategoryAttribute("				Colors")]
[DisplayNameAttribute("Fore color")]
[DescriptionAttribute("Foreground (bar) color to use when searching for barcodes")]
public RasterColor ForeColor {get; set;}

public void BarcodeReadOptions_ColorsExample()
   {
      string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "Barcode2.tif");

      // Create a Barcode engine
      BarcodeEngine engine = new BarcodeEngine();

      // Get the Barcode reader instance
      BarcodeReader reader = engine.Reader;

      using(RasterCodecs codecs = new RasterCodecs())
      {
         using(RasterImage image = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1))
         {
            // Invert the image
            Console.WriteLine("Inverting the image");
            Leadtools.ImageProcessing.Color.InvertCommand invert = new Leadtools.ImageProcessing.Color.InvertCommand();
            invert.Run(image);

            // All barcodes have default options of black foreground color and white background color, so
            // reading the barcode with default options should not return any barcodes right now

            // Read the QR barcode from this image using default options
            Console.WriteLine("Reading using default options");
            BarcodeData barcode = reader.ReadBarcode(image, LogicalRectangle.Empty, BarcodeSymbology.QR, null);

            // Show its location and data if found
            // This will print out "Not found"
            if(barcode != null)
            {
               Console.WriteLine("Found at {0}, data:\n{1}", barcode.Bounds, barcode.Value);
            }
            else
            {
               Console.WriteLine("Not found");
            }

            // Now create QR read options to have white foreground color and black background color
            QRBarcodeReadOptions qrReadOptions = new QRBarcodeReadOptions();
            qrReadOptions.ForeColor = RasterColor.FromKnownColor(RasterKnownColor.White);
            qrReadOptions.BackColor = RasterColor.FromKnownColor(RasterKnownColor.Black);

            // And use it to try to read the QR barcode again
            Console.WriteLine("Reading using specific options that instruct the engine to look for white on black barcodes");
            barcode = reader.ReadBarcode(image, LogicalRectangle.Empty, BarcodeSymbology.QR, qrReadOptions);

            // Show its location and data if found
            // This will find the barcode and print its information now
            if(barcode != null)
            {
               Console.WriteLine("Found at {0}, data:\n{1}", barcode.Bounds, barcode.Value);
            }
            else
            {
               Console.WriteLine("Not found");
            }
         }
      }
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}