LEADTOOLS Barcode (Leadtools.Barcode assembly)

CreateDefaultBarcodeData Method

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Example 







Leadtools.Barcode Namespace > BarcodeData Class : CreateDefaultBarcodeData Method
Barcode symbology.
Returns an instance of BarcodeData suitable for writing containing default and valid values for the specified symbology .
Syntax
public static BarcodeData CreateDefaultBarcodeData( 
   BarcodeSymbology symbology
)
'Declaration
 
Public Shared Function CreateDefaultBarcodeData( _
   ByVal symbology As BarcodeSymbology _
) As BarcodeData
'Usage
 
Dim symbology As BarcodeSymbology
Dim value As BarcodeData
 
value = BarcodeData.CreateDefaultBarcodeData(symbology)
public static BarcodeData CreateDefaultBarcodeData( 
   BarcodeSymbology symbology
)
+ (LTBarcodeData*)createDefaultBarcodeData:(LTBarcodeSymbology)symbology;

public static BarcodeData createDefaultBarcodeData(BarcodeSymbology symbology)

 function Leadtools.Barcode.BarcodeData.CreateDefaultBarcodeData( 
   symbology 
)

public:
static BarcodeData^ CreateDefaultBarcodeData( 
   BarcodeSymbology symbology
)

Parameters

symbology
Barcode symbology.

Return Value

An instance of BarcodeData or one of its derived classes filled with default and legal values of the symbology that can be used directly with BarcodeWriter.WriteBarcode.
Remarks

When writing barcodes, you must fill in a member of BarcodeData with legal values for the symbology based on the standard. This method can be used to quickly create a valid BarcodeData instance for the specified symbology and might be helpful for debugging.

The C# and VB Barcode demos use this method to obtain an initial BarcodeData for a symbology.

Note that if the symbology supports derived BarcodeData types, then an instance of the derived class will be returned instead. This includes DatamatrixBarcodeData, MicroPDF417BarcodeData, PDF417BarcodeData and QRBarcodeData for BarcodeSymbology.Datamatrix, BarcodeSymbology.MicroPDF417, BarcodeSymbology.PDF417 and BarcodeSymbology.QR respectively.

The GetBarcodeDataType method returns the System.Type of the derived class associated with a specified symbology or the BarcodeData type when the symbology does not have a specialized data class.

Note: In LEADTOOLS for Windows Runtime, the equivalent to BarcodeReadOptions is IBarcodeReadOptions, also the equivalent to BarcodeWriteOptions is IBarcodeWriteOptions.

Example
Copy Code   
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Barcode
Imports Leadtools.ImageProcessing

Public Sub BarcodeData_CreateDefaultBarcodeDataExample()
   ' Create a directory to store the images we will create
   Dim outDir As String = Path.Combine(LEAD_VARS.ImagesDir, "MyBarcodes")
   If Directory.Exists(outDir) Then
      Directory.Delete(outDir, True)
   End If
   Directory.CreateDirectory(outDir)

   Dim resolution As Integer = 300

   ' Create a Barcode engine
   Dim engine As New BarcodeEngine()

   ' Get the Barcode writer
   Dim writer As BarcodeWriter = engine.Writer

   ' All 1D options have the UseXModule set to false by default, we need to set it to true
   ' so we can calculate the default size. We will change the default options so we can
   ' pass null to CalculateBarcodeDataBounds and WriteBarcode below

   ' For all Standard 1D
   Dim oneDWriteOptions As OneDBarcodeWriteOptions = DirectCast(writer.GetDefaultOptions(BarcodeSymbology.UPCA), OneDBarcodeWriteOptions)
   oneDWriteOptions.UseXModule = True

   ' All GS1 Databar Stacked
   Dim gs1DatabarStackedWriteOptions As GS1DatabarStackedBarcodeWriteOptions = DirectCast(writer.GetDefaultOptions(BarcodeSymbology.GS1DatabarStacked), GS1DatabarStackedBarcodeWriteOptions)
   gs1DatabarStackedWriteOptions.UseXModule = True

   ' Patch Code
   Dim patchCodeWriteOptions As PatchCodeBarcodeWriteOptions = DirectCast(writer.GetDefaultOptions(BarcodeSymbology.PatchCode), PatchCodeBarcodeWriteOptions)
   patchCodeWriteOptions.UseXModule = True

   ' All PostNet/Planet
   Dim postNetPlanetWriteOptions As PostNetPlanetBarcodeWriteOptions = DirectCast(writer.GetDefaultOptions(BarcodeSymbology.PostNet), PostNetPlanetBarcodeWriteOptions)
   postNetPlanetWriteOptions.UseXModule = True

   ' We will use this object to save files
   Using codecs As New RasterCodecs()
      ' Get all the available write symbologies
      Dim symbologies() As BarcodeSymbology = writer.GetAvailableSymbologies()
      For Each symbology As BarcodeSymbology In symbologies
         Console.WriteLine("Processing {0}", symbology)

         ' Create the default data for this symbology
         Dim data As BarcodeData = BarcodeData.CreateDefaultBarcodeData(symbology)

         ' Calculate its size with default options
         writer.CalculateBarcodeDataBounds(LogicalRectangle.Empty, resolution, resolution, data, Nothing)

         ' Create an image to write the data to
         Dim pixels As LeadRect = data.Bounds.ToRectangle(resolution, resolution)
         Using image As RasterImage = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))
            ' Write the barcode with default options
            writer.WriteBarcode(image, data, Nothing)

            ' Save it
            Dim outFileName As String = Path.Combine(outDir, symbology.ToString() + ".tif")
            codecs.Save(image, outFileName, RasterImageFormat.Tif, 1)
         End Using
      Next
   End Using
End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;

public void BarcodeData_CreateDefaultBarcodeDataExample()
{
   // Create a directory to store the images we will create
   string outDir = Path.Combine(LEAD_VARS.ImagesDir, "MyBarcodes");
   if(Directory.Exists(outDir))
   {
      Directory.Delete(outDir, true);
   }
   Directory.CreateDirectory(outDir);

   int resolution = 300;

   // Create a Barcode engine
   BarcodeEngine engine = new BarcodeEngine();

   // Get the Barcode writer
   BarcodeWriter writer = engine.Writer;

   // All 1D options have the UseXModule set to false by default, we need to set it to true
   // so we can calculate the default size. We will change the default options so we can
   // pass null to CalculateBarcodeDataBounds and WriteBarcode below

   // For all Standard 1D
   OneDBarcodeWriteOptions oneDWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.UPCA) as OneDBarcodeWriteOptions;
   oneDWriteOptions.UseXModule = true;

   // All GS1 Databar Stacked
   GS1DatabarStackedBarcodeWriteOptions gs1DatabarStackedWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.GS1DatabarStacked) as GS1DatabarStackedBarcodeWriteOptions;
   gs1DatabarStackedWriteOptions.UseXModule = true;

   // Patch Code
   PatchCodeBarcodeWriteOptions patchCodeWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.PatchCode) as PatchCodeBarcodeWriteOptions;
   patchCodeWriteOptions.UseXModule = true;

   // All PostNet/Planet
   PostNetPlanetBarcodeWriteOptions postNetPlanetWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.PostNet) as PostNetPlanetBarcodeWriteOptions;
   postNetPlanetWriteOptions.UseXModule = true;

   // We will use this object to save files
   using(RasterCodecs codecs = new RasterCodecs())
   {
      // Get all the available write symbologies
      BarcodeSymbology[] symbologies = writer.GetAvailableSymbologies();
      foreach(BarcodeSymbology symbology in symbologies)
      {
         Console.WriteLine("Processing {0}", symbology);

         // Create the default data for this symbology
         BarcodeData data = BarcodeData.CreateDefaultBarcodeData(symbology);

         // Calculate its size with default options
         writer.CalculateBarcodeDataBounds(LogicalRectangle.Empty, resolution, resolution, data, null);

         // Create an image to write the data to
         LeadRect pixels = data.Bounds.ToRectangle(resolution, resolution);
         using(RasterImage image = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White)))
         {
            // Write the barcode with default options
            writer.WriteBarcode(image, data, null);

            // Save it
            string outFileName = Path.Combine(outDir, symbology + ".tif");
            codecs.Save(image, outFileName, RasterImageFormat.Tif, 1);
         }
      }
   }
}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;

      
public async Task BarcodeData_CreateDefaultBarcodeDataExample()
{
   int resolution = 300;
   // Create a Barcode engine
   BarcodeEngine engine = new BarcodeEngine();

   // Get the Barcode writer
   BarcodeWriter writer = engine.Writer;

   // All 1D options have the UseXModule set to false by default, we need to set it to true
   // so we can calculate the default size. We will change the default options so we can
   // pass null to CalculateBarcodeDataBounds and WriteBarcode below

   // For all Standard 1D
   OneDBarcodeWriteOptions oneDWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.UPCA) as OneDBarcodeWriteOptions;
   oneDWriteOptions.UseXModule = true;

   // All GS1 Databar Stacked
   GS1DatabarStackedBarcodeWriteOptions gs1DatabarStackedWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.GS1DatabarStacked) as GS1DatabarStackedBarcodeWriteOptions;
   gs1DatabarStackedWriteOptions.UseXModule = true;

   // Patch Code
   PatchCodeBarcodeWriteOptions patchCodeWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.PatchCode) as PatchCodeBarcodeWriteOptions;
   patchCodeWriteOptions.UseXModule = true;

   // All PostNet/Planet
   PostNetPlanetBarcodeWriteOptions postNetPlanetWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.PostNet) as PostNetPlanetBarcodeWriteOptions;
   postNetPlanetWriteOptions.UseXModule = true;

   // We will use this object to save files
   using(RasterCodecs codecs = new RasterCodecs())
   {
      // Get all the available write symbologies
      BarcodeSymbology[] symbologies = writer.GetAvailableSymbologies();
      foreach(BarcodeSymbology symbology in symbologies)
      {
         Debug.WriteLine("Processing {0}", symbology);

         // Create the default data for this symbology
         BarcodeData data = BarcodeData.CreateDefaultBarcodeData(symbology);

         // Calculate its size with default options
         writer.CalculateBarcodeDataBounds(LeadRectHelper.Empty, resolution, resolution, data, null);

         // Create an image to write the data to
         LeadRect pixels = data.Bounds;
         using(RasterImage image = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColorHelper.FromKnownColor(RasterKnownColor.White)))
         {
            // Write the barcode with default options
            writer.WriteBarcode(image, data, null);

            // Save it
            string outFileName = symbology.ToString() + ".tif";
            StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(outFileName);
            await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Tif, 1);
         }
      }
   }
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;
using Leadtools.Examples;

public void BarcodeData_CreateDefaultBarcodeDataExample()
{
   int resolution = 300;
   // Create a Barcode engine
   BarcodeEngine engine = new BarcodeEngine();

   // Get the Barcode writer
   BarcodeWriter writer = engine.Writer;

   // All 1D options have the UseXModule set to false by default, we need to set it to true
   // so we can calculate the default size. We will change the default options so we can
   // pass null to CalculateBarcodeDataBounds and WriteBarcode below

   // For all Standard 1D
   OneDBarcodeWriteOptions oneDWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.UPCA) as OneDBarcodeWriteOptions;
   oneDWriteOptions.UseXModule = true;

   // All GS1 Databar Stacked
   GS1DatabarStackedBarcodeWriteOptions gs1DatabarStackedWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.GS1DatabarStacked) as GS1DatabarStackedBarcodeWriteOptions;
   gs1DatabarStackedWriteOptions.UseXModule = true;

   // Patch Code
   PatchCodeBarcodeWriteOptions patchCodeWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.PatchCode) as PatchCodeBarcodeWriteOptions;
   patchCodeWriteOptions.UseXModule = true;

   // All PostNet/Planet
   PostNetPlanetBarcodeWriteOptions postNetPlanetWriteOptions = writer.GetDefaultOptions(BarcodeSymbology.PostNet) as PostNetPlanetBarcodeWriteOptions;
   postNetPlanetWriteOptions.UseXModule = true;

   // We will use this object to save files
   RasterCodecs codecs = new RasterCodecs();

   // Get all the available write symbologies
   BarcodeSymbology[] symbologies = writer.GetAvailableSymbologies();
   foreach(BarcodeSymbology symbology in symbologies)
   {
      Console.WriteLine("Processing {0}", symbology);

      // Create the default data for this symbology
      BarcodeData data = BarcodeData.CreateDefaultBarcodeData(symbology);

      // Calculate its size with default options
      writer.CalculateBarcodeDataBounds(LogicalRectangle.Empty, resolution, resolution, data, null);

      // Create an image to write the data to
      LeadRect pixels = data.Bounds.ToRectangle(resolution, resolution);

      using (RasterImage image = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White)))
      {
         // Write the barcode with default options
         writer.WriteBarcode(image, data, null);

         using (SampleImageStream outputStream = new SampleImageStream(symbology + ".tif"))
         {
            // Save it
            codecs.Save(image, outputStream, RasterImageFormat.Tif, 1);
         }
      }
   }
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Barcode
Imports Leadtools.ImageProcessing

Public Sub BarcodeData_CreateDefaultBarcodeDataExample()
  Dim resolution As Integer = 300
  ' Create a Barcode engine
  Dim engine As BarcodeEngine = New BarcodeEngine()

  ' Get the Barcode writer
  Dim writer As BarcodeWriter = engine.Writer

  ' All 1D options have the UseXModule set to false by default, we need to set it to true
  ' so we can calculate the default size. We will change the default options so we can
  ' pass null to CalculateBarcodeDataBounds and WriteBarcode below

  ' For all Standard 1D
  Dim oneDWriteOptions As OneDBarcodeWriteOptions = TryCast(writer.GetDefaultOptions(BarcodeSymbology.UPCA), OneDBarcodeWriteOptions)
  oneDWriteOptions.UseXModule = True

  ' All GS1 Databar Stacked
  Dim gs1DatabarStackedWriteOptions As GS1DatabarStackedBarcodeWriteOptions = TryCast(writer.GetDefaultOptions(BarcodeSymbology.GS1DatabarStacked), GS1DatabarStackedBarcodeWriteOptions)
  gs1DatabarStackedWriteOptions.UseXModule = True

  ' Patch Code
  Dim patchCodeWriteOptions As PatchCodeBarcodeWriteOptions = TryCast(writer.GetDefaultOptions(BarcodeSymbology.PatchCode), PatchCodeBarcodeWriteOptions)
  patchCodeWriteOptions.UseXModule = True

  ' All PostNet/Planet
  Dim postNetPlanetWriteOptions As PostNetPlanetBarcodeWriteOptions = TryCast(writer.GetDefaultOptions(BarcodeSymbology.PostNet), PostNetPlanetBarcodeWriteOptions)
  postNetPlanetWriteOptions.UseXModule = True

  ' We will use this object to save files
  Dim codecs As RasterCodecs = New RasterCodecs()

  ' Get all the available write symbologies
  Dim symbologies As BarcodeSymbology() = writer.GetAvailableSymbologies()
  For Each symbology As BarcodeSymbology In symbologies
    Console.WriteLine("Processing {0}", symbology)

    ' Create the default data for this symbology
    Dim data As BarcodeData = BarcodeData.CreateDefaultBarcodeData(symbology)

    ' Calculate its size with default options
    writer.CalculateBarcodeDataBounds(LogicalRectangle.Empty, resolution, resolution, data, Nothing)

    ' Create an image to write the data to
    Dim pixels As LeadRect = data.Bounds.ToRectangle(resolution, resolution)

    Using image As RasterImage = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))
       ' Write the barcode with default options
       writer.WriteBarcode(image, data, Nothing)

       Using outputStream As SampleImageStream = New SampleImageStream(symbology & ".tif")
         ' Save it
         codecs.Save(image, outputStream, RasterImageFormat.Tif, 1)
       End Using
    End Using
  Next symbology
End Sub
Requirements

Target Platforms

See Also

Reference

BarcodeData Class
BarcodeData Members
GetBarcodeDataType Method
DatamatrixBarcodeData Class
MicroPDF417BarcodeData Class
PDF417BarcodeData Class
QRBarcodeData Class

 

 

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Leadtools.Barcode requires a Barcode Module license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features