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BarcodeData Constructor(BarcodeSymbology,byte[])

Summary
Initializes a new instance of the BarcodeData class with specified symbology and data.
Syntax
C#
Objective-C
C++
Java
- (instancetype)initWithSymbology:(LTBarcodeSymbology)symbology data:(nullable NSData *)data NS_DESIGNATED_INITIALIZER; 
public BarcodeData( 
  BarcodeSymbology symbology, 
  byte[] data 
) 
public: 
BarcodeData(  
   BarcodeSymbology symbology, 
   array<byte>^ data 
) 

Parameters

symbology
Barcode symbology to use.

data
An array of Byte that specifies the data to use. This value can be null (Nothing in VB).

Remarks

This constructor initializes the BarcodeData member as follows:

Member Value
Symbology symbology
Bounds LeadRect.Empty
RotationAngle 0
BarWidthReduction 0
Byte array inside GetData data (same reference, the data is not copied)
Value ASCII text string representation of data, if this parameter is null, then Value is null too.
Tag null (Nothing in Visual Basic)

To quickly construct a new BarcodeData object with a specific symbology and data as a string value, use BarcodeData(BarcodeSymbology symbology, string value) to construct a default BarcodeData, use BarcodeData().

To create an instance of BarcodeData suitable for writing for a specified symbology, use CreateDefaultBarcodeData.

Example

This example creates a BarcodeData using specified symbology and raw data. Then it writes it to an image.

C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void BarcodeData_FromByteArrayExample() 
{ 
   string outFileName = Path.Combine(LEAD_VARS.ImagesDir, @"MyBarcode.tif"); 
 
   // This is UPC data to save a a string 
   string originalString = "01234567890"; 
 
   // We will get it as a byte array to use in the rest of this example 
   byte[] bytes = Encoding.ASCII.GetBytes(originalString); 
 
   // Create a BarcodeData object from this data 
   BarcodeData data = new BarcodeData(BarcodeSymbology.UPCA, bytes); 
   data.Bounds = new LeadRect(0, 0, 400, 200); 
 
   // Make sure it is the same 
   Debug.Assert(data.Value == originalString); 
 
   // Write it to an image 
   BarcodeEngine engine = new BarcodeEngine(); 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      int resolution = 300; 
      LeadRect pixels = data.Bounds; 
      using (RasterImage image = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))) 
      { 
         engine.Writer.WriteBarcode(image, data, null); 
 
         codecs.Save(image, outFileName, RasterImageFormat.Tif, 1); 
      } 
   } 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2022.5.25
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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Barcode Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.