public BarcodeReadOptions Options { get; } @property (nonatomic, strong, readonly, nullable) LTBarcodeReadOptions *options public BarcodeReadOptions getOptions() public:property BarcodeReadOptions^ Options {BarcodeReadOptions^ get();}
Options # get (BarcodeReadSymbologyEventArgs)
An BarcodeReadOptions or one of its derived classes that specifies the options being used to read the symbologies.
Options could be the options passed through the read methods or the default options set in BarcodeReader. If Status is BarcodeReadSymbologyStatus.PreRead, then you can modify this object in the event handler if required. The BarcodeReader will use this object to perform the read operation.
using Leadtools;using Leadtools.Codecs;using Leadtools.Barcode;using Leadtools.ImageProcessing;public void BarcodeReader_ReadSymbologyExample(){string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "Barcode1.tif");// Create a Barcode engineBarcodeEngine engine = new BarcodeEngine();// Get the Barcode reader instanceBarcodeReader reader = engine.Reader;// Load the imageusing (RasterCodecs codecs = new RasterCodecs()){using (RasterImage image = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)){// Subscribe to the ReadSymbology eventreader.ReadSymbology += new EventHandler<BarcodeReadSymbologyEventArgs>(reader_ReadSymbology);// Read all barcodes in the imagereader.ReadBarcodes(image, LeadRect.Empty, 0, null);reader.ReadSymbology -= new EventHandler<BarcodeReadSymbologyEventArgs>(reader_ReadSymbology);}}}private void reader_ReadSymbology(object sender, BarcodeReadSymbologyEventArgs e){if (e.Operation == BarcodeReadSymbologyOperation.PreRead){// Before reading, show the symbologies the engine is going to try to readConsole.WriteLine("Trying to read the following symbologies:");BarcodeSymbology[] symbologies = e.GetSymbologies();for (int i = 0; i < symbologies.Length; i++){Console.Write(symbologies[i]);if (i != (symbologies.Length - 1)){Console.Write(", ");Console.WriteLine(e.Options.FriendlyName);}else{Console.WriteLine();}}}else if (e.Operation == BarcodeReadSymbologyOperation.PostRead){if (e.Error == null){// No errorsBarcodeData barcode = e.Data;if (barcode != null){// Found a barcode, show itConsole.WriteLine(" {0} at {1} with data {2}", barcode.Symbology, barcode.Bounds, barcode.Value);}else{Console.WriteLine(" No barcodes found");}}else{// Show the errorConsole.WriteLine("Error: {0}", e.Error.Message);// Tell the reader top stop reading barcodese.Status = BarcodeReadSymbologyStatus.Abort;}}}static class LEAD_VARS{public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";}
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