MicroPDF417BarcodeReadMode Enumeration

Summary

MicroPDF417 read mode enumerations.

Syntax

Objective-C

C++/CLI

Java

Python

[SerializableAttribute()] 
public enum MicroPDF417BarcodeReadMode

typedef NS_ENUM(NSInteger, LTMicroPDF417BarcodeReadMode) { 
 LTMicroPDF417BarcodeReadModeMode0,  
 LTMicroPDF417BarcodeReadModeMode1,  
 LTMicroPDF417BarcodeReadModeMode2,  
 LTMicroPDF417BarcodeReadModeMode3Basic,  
 LTMicroPDF417BarcodeReadModeMode3Extended,  
 LTMicroPDF417BarcodeReadModeModeMicroPDF417Basic,  
 LTMicroPDF417BarcodeReadModeModeMicroPDF417Extended 
};

public enum MicroPDF417BarcodeReadMode

[SerializableAttribute()] 
public enum class MicroPDF417BarcodeReadMode

class MicroPDF417BarcodeReadMode(Enum): 
   Mode0 = 0 
   Mode1 = 1 
   Mode2 = 2 
   Mode3Basic = 3 
   Mode3Extended = 4 
   ModeMicroPDF417Basic = 5 
   ModeMicroPDF417Extended = 6

Members

Value	Member	Description
0	Mode0	Basic channel mode with no transmission of symbology: No escape doubling. Macro PDF is illegal. ECI is illegal. Reserved code words are illegal.
1	Mode1	Basic channel mode with transmit ]L1 symbology. Escape doubling. Macro PDF is transmitted. ECI is transmitted. Reserved code words are transmitted.
2	Mode2	Basic channel mode with transmit ]L2 symbology. No escape doubling. Macro PDF is illegal. ECI is illegal. Reserved code words are illegal.
3	Mode3Basic	Basic channel mode with transmit ]L0 symbology. No escape doubling. Macro PDF is illegal. ECI is illegal. Reserved code words are illegal.
4	Mode3Extended	Basic channel mode with transmit ]L0 symbology. Escape doubling. Macro PDF is transmitted. ECI is transmitted in GLI format. Reserved code words transmitted.
5	ModeMicroPDF417Basic	Basic channel mode with transmit ]L3 symbology. Code 128 Emulation Basic Channel Mode. Transmit ] L0, ] L3, ] L4, or ] L5 symbology ID. No escape doubling. Macro PDF is illegal. ECI is illegal. Reserved code words are illegal.
6	ModeMicroPDF417Extended	Extended channel mode with transmit ]L3 symbology. Code 128 Emulation Extended Channel Mode. Transmit ] L0, ] L3, ] L4, or ] L5 symbology ID. Escape doubling. Macro PDF is transmitted. ECI is transmitted in GLI format. Reserved code words transmitted.

Remarks

The MicroPDF417BarcodeReadMode enumeration is used as the type for the MicroPDF417BarcodeReadOptions.ReadMode property and can be used to control which mode to use when reading the MicroPDF417 data.

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

Leadtools.Barcode Namespace

MicroPDF417 Barcodes in LEADTOOLS

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Help Version 23.0.2024.2.29

Leadtools.Barcode Assembly

Introduction

Getting Started

Namespaces

Leadtools.Barcode Namespace

Assemblies