DataCode Property

Summary

Gets or sets a value that indicates the MicroPDF417 barcode function code word for Code 128 emulation.

Syntax

Objective-C

C++/CLI

Java

Python

[CLSCompliantAttribute(false)] 
public uint DataCode { get; set; }

@property (nonatomic, assign) NSUInteger dataCode;

public int getDataCode() 
public void setDataCode(int value)

[CLSCompliantAttribute(false)] 
[BrowsableAttribute(false)] 
public: 
property uint DataCode { 
   uint get(); 
   void set (    uint ); 
}

DataCode # get and set (MicroPDF417BarcodeData)

Property Value

An UInt32 that indicates the MicroPDF417 barcode function code word for Code 128 emulation. The default value is 0.

Remarks

This property is set by the BarcodeReader object when a MicroPDF417 symbol is read.

To use this value when writing MicroPDF417 symbols, set the value of MicroPDF417BarcodeWriteOptions.EnableGroupMode to true.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void MicroPDF417Barcode_Example() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyMicroPDF417Barcodes.tif"); 
 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Create the image to write the barcodes to 
   int resolution = 300; 
   using (RasterImage image = RasterImage.Create((int)(8.5 * resolution), (int)(11.0 * resolution), 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))) 
   { 
      // Write two MicroPDF417 barcodes 
      WriteBarcode(engine.Writer, image, "DATA1", MicroPDF417BarcodeSymbolSize.Smallest, true); 
      WriteBarcode(engine.Writer, image, "DATA2", MicroPDF417BarcodeSymbolSize.Size44X4, false); 
 
      // Save the image 
      using (RasterCodecs codecs = new RasterCodecs()) 
      { 
         codecs.Save(image, imageFileName, RasterImageFormat.CcittGroup4, 1); 
      } 
   } 
 
   // Now read the barcodes again 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      using (RasterImage image = codecs.Load(imageFileName)) 
      { 
         ReadBarcodes(engine.Reader, image); 
      } 
   } 
} 
 
private void WriteBarcode(BarcodeWriter writer, RasterImage image, string value, MicroPDF417BarcodeSymbolSize symbolSize, bool topLeft) 
{ 
   // Create the barcode data 
   MicroPDF417BarcodeData barcode = new MicroPDF417BarcodeData(); 
   barcode.Value = value; 
   barcode.DataCode = 0; 
   barcode.Symbology = BarcodeSymbology.MicroPDF417; 
 
   // We will use the alignment to position the barcodes, so use all of the image 
   barcode.Bounds = new LeadRect(0, 0, image.ImageWidth, image.ImageHeight); 
 
   // Set the write options 
   MicroPDF417BarcodeWriteOptions options = new MicroPDF417BarcodeWriteOptions(); 
 
   if (topLeft) 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Near; 
      options.VerticalAlignment = BarcodeAlignment.Near; 
   } 
   else 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Far; 
      options.VerticalAlignment = BarcodeAlignment.Far; 
   } 
 
   options.UseMode128Emulation = false; 
   options.IsLinked = false; 
   options.EnableGroupMode = false; 
   options.XModule = 30; 
   options.XModuleAspectRatio = 3; 
   options.LimitByRowsAndColumns = true; 
   options.SymbolSize = symbolSize; 
 
   // Write it 
   Console.WriteLine("Writing barcode with symbol size: {0} and Data: {1}", symbolSize, value); 
   writer.WriteBarcode(image, barcode, options); 
} 
 
private void ReadBarcodes(BarcodeReader reader, RasterImage image) 
{ 
   // Setup read options 
   MicroPDF417BarcodeReadOptions options = new MicroPDF417BarcodeReadOptions(); 
   options.SearchDirection = BarcodeSearchDirection.Horizontal; 
   options.EnableDoublePass = false; 
   options.ReadMode = MicroPDF417BarcodeReadMode.Mode0; 
   options.ReadOptionalMacroFileNameField = false; 
   options.ReadOptionalMacroSegmentCountField = false; 
   options.ReadOptionalMacroTimestampField = false; 
   options.ReadOptionalMacroSenderField = false; 
   options.ReadOptionalMacroAddresseeField = false; 
   options.ReadOptionalMacroFileSizeField = false; 
   options.ReadOptionalMacroChecksumField = false; 
   options.ReadOptionalMacro79AndAZField = false; 
   options.EnableDoublePassIfSuccess = true; 
   options.EnablePreprocessing = true; 
 
   Console.WriteLine("Reading Barcodes"); 
   BarcodeData[] barcodes = reader.ReadBarcodes(image, LeadRect.Empty, 0, new BarcodeSymbology[] { BarcodeSymbology.MicroPDF417 }, new BarcodeReadOptions[] { options }); 
   Console.WriteLine("{0} barcodes found:", barcodes.Length); 
   foreach (MicroPDF417BarcodeData barcode in barcodes) 
   { 
      Console.WriteLine(" At {0} data: {1} and symbology: {2}", barcode.Bounds, barcode.Value, barcode.Symbology); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.barcode.*; 
import leadtools.codecs.*; 
 
 
public void microPDF417BarcodeExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String imageFileName = combine(LEAD_VARS_IMAGES_DIR, "MicroPDF417Barcode.tif"); 
   String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "Result.tif"); 
   RasterCodecs codecs = new RasterCodecs(); 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Create the image to write the barcodes to 
   int resolution = 300; 
   RasterImage image = RasterImage.create( 
      (int) (8.5 * resolution),  
      (int) (11.0 * resolution),  
      1,  
      resolution, 
      RasterColor.fromKnownColor(RasterKnownColor.WHITE) 
   ); 
 
   // Write two MicroPDF417 barcodes 
   writeBarcode(engine.getWriter(), image, "DATA1", MicroPDF417BarcodeSymbolSize.SMALLEST, true); 
   writeBarcode(engine.getWriter(), image, "DATA2", MicroPDF417BarcodeSymbolSize.SIZE44X4, false); 
 
   // Save the image 
   codecs.save(image, imageFileName, RasterImageFormat.CCITT_GROUP4, 1); 
 
   // Now read the barcodes again 
   image = codecs.load(imageFileName); 
   codecs.save(image, outputFileName, RasterImageFormat.TIF, 0); 
   readBarcodes(engine.getReader(), image); 
 
   assertTrue("file unsuccessfully saved to " + outputFileName, (new File(outputFileName)).exists()); 
   System.out.printf("File saved successfully to %s%n", outputFileName); 
} 
 
// Create the barcode data 
private void writeBarcode(BarcodeWriter writer, RasterImage image, String value, MicroPDF417BarcodeSymbolSize symbolSize, boolean topLeft) { 
   MicroPDF417BarcodeData barcode = new MicroPDF417BarcodeData(); 
   barcode.setValue(value); 
   barcode.setDataCode(0); 
   barcode.setSymbology(BarcodeSymbology.MICRO_PDF417); 
 
   // We will use the alignment to position the barcodes, so use all of the image 
   barcode.setBounds(new LeadRect(0, 0, image.getImageWidth(), image.getImageHeight())); 
 
   // Set the write options 
   MicroPDF417BarcodeWriteOptions options = new MicroPDF417BarcodeWriteOptions(); 
 
   if (topLeft) { 
      options.setHorizontalAlignment(BarcodeAlignment.NEAR); 
      options.setVerticalAlignment(BarcodeAlignment.NEAR); 
   } else { 
      options.setHorizontalAlignment(BarcodeAlignment.FAR); 
      options.setVerticalAlignment(BarcodeAlignment.FAR); 
   } 
 
   options.setUseMode128Emulation(false); 
   options.setLinked(false); 
   options.setEnableGroupMode(false); 
   options.setXModule(30); 
   options.setXModuleAspectRatio(3); 
   options.setLimitByRowsAndColumns(true); 
   options.setSymbolSize(symbolSize); 
 
   // Write it 
   System.out.printf("Writing barcode with symbol size: %1s and Data: %2s%n", symbolSize, value); 
   writer.writeBarcode(image, barcode, options); 
} 
 
// Setup read options 
private void readBarcodes(BarcodeReader reader, RasterImage image) { 
   MicroPDF417BarcodeReadOptions options = new MicroPDF417BarcodeReadOptions(); 
   options.setSearchDirection(BarcodeSearchDirection.HORIZONTAL); 
   options.setEnableDoublePass(false); 
   options.setReadMode(MicroPDF417BarcodeReadMode.MODE0); 
   options.setReadOptionalMacroFileNameField(false); 
   options.setReadOptionalMacroSegmentCountField(false); 
   options.setReadOptionalMacroTimestampField(false); 
   options.setReadOptionalMacroSenderField(false); 
   options.setReadOptionalMacroAddresseeField(false); 
   options.setReadOptionalMacroFileSizeField(false); 
   options.setReadOptionalMacroChecksumField(false); 
   options.setReadOptionalMacro79AndAZField(false); 
   options.setEnableDoublePassIfSuccess(true); 
   options.setEnablePreprocessing(true); 
 
   System.out.println("Reading Barcodes"); 
   BarcodeData[] barcodes = reader.readBarcodes(image, LeadRect.getEmpty(), 0, 
         new BarcodeSymbology[] { BarcodeSymbology.MICRO_PDF417 }, new BarcodeReadOptions[] { options }); 
   System.out.printf("%s barcodes found:%n", barcodes.length); 
 
   for (BarcodeData barcode : barcodes) { 
      System.out.printf(" At %1s data: %2s and symbology: %3s%n", barcode.getBounds(), barcode.getValue(), 
            barcode.getSymbology()); 
   } 
}

Requirements

Target Platforms

Reference

MicroPDF417BarcodeData Class

MicroPDF417BarcodeData Members

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Help Version 23.0.2024.2.29

Leadtools.Barcode Assembly

Introduction

Getting Started

Namespaces

Leadtools.Barcode Namespace

Assemblies