AllowPartialRead Property

Summary

Gets or sets a value that indicates whether partially read barcodes can be returned.

Syntax

Objective-C

C++/CLI

Java

Python

public bool AllowPartialRead { get; set; }

@property (nonatomic, assign) BOOL allowPartialRead;

public boolean getAllowPartialRead() 
public void setAllowPartialRead(boolean value)

public: 
property bool AllowPartialRead { 
   bool get(); 
   void set (    bool ); 
}

AllowPartialRead # get and set (OneDBarcodeReadOptions)

Property Value

true to return partially read barcodes. Otherwise, false otherwise. The default value is false.

Remarks

When the value of AllowPartialRead is set to true, then barcodes that could not be read completely, for example, when error check fails or certain area of the barcode is corrupted, the engine will still return this barcode in its incomplete state. There is no guarantee what part of the barcode is not read correctly and hence, it is not recommended to turn this feature on.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void OneDBarcode_Example() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyOneDBarcodes.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 a POSTNET and a PLANET barcodes 
      WriteBarcode(engine.Writer, image, BarcodeSymbology.UPCA, "01234567890", new LeadRect(10, 100, 400, 200)); 
      WriteBarcode(engine.Writer, image, BarcodeSymbology.Code128, "Code 128", new LeadRect(10, 400, 400, 200)); 
      WriteBarcode(engine.Writer, image, BarcodeSymbology.Code11, "124578", new LeadRect(10, 700, 400, 200)); 
 
      // 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)) 
      { 
         // Read the UPC-A barcode 
         ReadBarcodes(engine.Reader, image, BarcodeSymbology.UPCA); 
 
         // Read the Code 128 barcode 
         ReadBarcodes(engine.Reader, image, BarcodeSymbology.Code128); 
 
         // Read the Code 11 barcode 
         ReadBarcodes(engine.Reader, image, BarcodeSymbology.Code11); 
      } 
   } 
} 
 
private void WriteBarcode(BarcodeWriter writer, RasterImage image, BarcodeSymbology symbology, string value, LeadRect bounds) 
{ 
   // Create the barcode data 
   BarcodeData barcode = new BarcodeData(symbology, value); 
   barcode.Bounds = bounds; 
 
   // Set the write options 
   OneDBarcodeWriteOptions options = new OneDBarcodeWriteOptions(); 
   options.TextPosition = BarcodeOutputTextPosition.Default; 
   options.UseXModule = false; 
   options.XModule = 30; 
   options.EnableErrorCheck = false; 
   options.SetGS1DatabarLinkageBit = false; 
   options.WriteTruncatedGS1Databar = false; 
   options.Code128TableEncoding = Code128BarcodeTableEncoding.Auto; 
   options.Code11CheckDigitType = Code11BarcodeCheckDigitType.CDigit; 
   options.MSIModuloType = MSIBarcodeModuloType.Modulo10; 
 
   // Write it 
   Console.WriteLine("Writing {0} barcode with data: {1}", symbology, value); 
   writer.WriteBarcode(image, barcode, options); 
} 
 
private void ReadBarcodes(BarcodeReader reader, RasterImage image, BarcodeSymbology symbology) 
{ 
   // Setup read options 
   OneDBarcodeReadOptions options = new OneDBarcodeReadOptions(); 
   options.SearchDirection = BarcodeSearchDirection.Horizontal; 
   options.EnableFastMode = true; 
   options.Granularity = 9; 
   options.MinimumStringLength = 3; 
   options.MaximumStringLength = 0; 
   options.WhiteLinesNumber = 3; 
   options.ReturnCheckDigit = BarcodeReturnCheckDigit.Default; 
   options.EnableErrorCheck = false; 
   options.AvoidCorruptedBlocks = false; 
   options.AllowPartialRead = false; 
   options.Code11CheckDigitType = Code11BarcodeCheckDigitType.CDigit; 
   options.MSIModuloType = MSIBarcodeModuloType.Modulo10; 
   options.CalculateBarWidthReduction = true; 
   options.Code39Extended = false; 
   options.EnableDoublePass = false; 
   options.EnablePreprocessing = false; 
   options.ResizeSmall1D = false; 
 
   Console.WriteLine("Reading {0} barcodes", symbology); 
   BarcodeData barcode = reader.ReadBarcode(image, LeadRect.Empty, symbology, options); 
   if (barcode != null) 
   { 
      Console.WriteLine(" At {0}, data: {1}", barcode.Bounds, barcode.Value); 
   } 
   else 
   { 
      Console.WriteLine(" Not found"); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

OneDBarcodeReadOptions Class

OneDBarcodeReadOptions Members

Download our FREE evaluation

Help Version 22.0.2023.5.9

Leadtools.Barcode Assembly

Introduction

Getting Started

Namespaces

Leadtools.Barcode Namespace

Assemblies