Contains the data for a single MicroPDF417 barcode.
[TypeConverterAttribute()]
[SerializableAttribute()]
public class PDF417BarcodeData : Leadtools.Barcode.BarcodeData, System.ICloneable
<TypeConverterAttribute()>
<SerializableAttribute()>
Public Class PDF417BarcodeData
Inherits Leadtools.Barcode.BarcodeData
Implements System.ICloneable
@interface LTPDF417BarcodeData : LTBarcodeData <NSCopying>
public class PDF417BarcodeData extends BarcodeData
[TypeConverterAttribute()]
[SerializableAttribute()]
public ref class PDF417BarcodeData : public Leadtools.Barcode.BarcodeData, System.ICloneable
The MicroPDF417BarcodeData class derives from the base BarcodeData to add specific data that can be read or written when using MicroPDF417 barcodes.
When the BarcodeReader object detects and reads a MicroPDF417 ( BarcodeSymbology.MicroPDF417), the BarcodeReader.ReadBarcode and BarcodeReader.ReadBarcodes methods will return the MicroPDF417BarcodeData object for each barcode cast down to the base BarcodeData class.
Perform standard .NET casting to get the object as MicroPDF417BarcodeData and then examine the extra data properties associated with it.
In addition to all the data members returned as usual in the base BarcodeData object, this class adds the following members:
DataCode - The MicroPDF417 barcode function code word for Code 128 emulation.
IsLinked - Indicates that the MicroPDF417 barcode is linked to a linear symbol printed below it.
In addition to the members above, other MicroPDF417 read options not related to the barcode data can be set using the MicroPDF417BarcodeReadOptions class.
The BarcodeWriter class contains the WriteBarcode method that is used to write a barcode to an image. This method accept the data parameter as the base BarcodeData object. To write a MicroPDF417 barcode, create an instance of MicroPDF417BarcodeData and fill the required parameters then pass this object as the data parameter to WriteBarcode.
In addition to all the data members that must be set as usual in the base BarcodeData object, you must also specify the following members:
In addition to the members above, other MicroPDF417 write options not related to the barcode data can be set using the MicroPDF417BarcodeWriteOptions class.
Use the static (or Shared in VB) BarcodeData.CreateDefaultBarcodeData method to create a new instance of MicroPDF417BarcodeData that contains default parameters ready for writing to an image:
Dim microPDF417Data As MicroPDF417BarcodeData = DirectCast(BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.MicroPDF417), MicroPDF417BarcodeData)
MicroPDF417BarcodeData microPDF417Data = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.MicroPDF417) as MicroPDF417BarcodeData;
This example writes a couple of PDF417 barcode with different options to an image and then reads them back.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;
public void PDF417Barcode_Example()
{
string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyPDF417Barcodes.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 PDF417 barcodes
WriteBarcode(engine.Writer, image, "DATA1", 10, 10, true);
WriteBarcode(engine.Writer, image, "DATA2", 20, 20, 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, int rows, int columns, bool topLeft)
{
// Create the barcode data
PDF417BarcodeData barcode = new PDF417BarcodeData();
barcode.Value = value;
barcode.Group = 0;
// We will use the alignment to position the barcodes, so use all of the image
barcode.Bounds = new LogicalRectangle(0, 0, image.ImageWidth, image.ImageHeight, LogicalUnit.Pixel);
// Set the write options
PDF417BarcodeWriteOptions options = new PDF417BarcodeWriteOptions();
if (topLeft)
{
options.HorizontalAlignment = BarcodeAlignment.Near;
options.VerticalAlignment = BarcodeAlignment.Near;
}
else
{
options.HorizontalAlignment = BarcodeAlignment.Far;
options.VerticalAlignment = BarcodeAlignment.Far;
}
options.Truncated = false;
options.EnableGroupMode = false;
options.SymbolWidthAspectRatio = 2;
options.SymbolHeightAspectRatio = 1;
options.LimitByRowsAndColumns = true;
options.Rows = rows;
options.Columns = columns;
options.XModule = 30;
options.XModuleAspectRatio = 3;
options.ECCLevel = PDF417BarcodeECCLevel.Level0;
options.ECCPercentage = 0;
// Write it
Console.WriteLine("Writing barcode with symbol rows/columns: {0}/{1} and Data: {2}", rows, columns, value);
writer.WriteBarcode(image, barcode, options);
}
private void ReadBarcodes(BarcodeReader reader, RasterImage image)
{
// Setup read options
PDF417BarcodeReadOptions options = new PDF417BarcodeReadOptions();
options.SearchDirection = BarcodeSearchDirection.Horizontal;
options.EnableDoublePass = false;
options.EnableFastMode = false;
options.ReadMode = PDF417BarcodeReadMode.Mode0;
options.ReturnCorruptedSymbolArea = false;
options.ReadOptionalMacroFileNameField = false;
options.ReadOptionalMacroSegmentCountField = false;
options.ReadOptionalMacroTimestampField = false;
options.ReadOptionalMacroSenderField = false;
options.ReadOptionalMacroAddresseeField = false;
options.ReadOptionalMacroFileSizeField = false;
options.ReadOptionalMacroChecksumField = false;
options.ReadOptionalMacro79AndAZField = false;
Console.WriteLine("Reading Barcodes");
BarcodeData[] barcodes = reader.ReadBarcodes(image, LogicalRectangle.Empty, 0, new BarcodeSymbology[] { BarcodeSymbology.PDF417 }, new BarcodeReadOptions[] { options });
Console.WriteLine("{0} barcodes found:", barcodes.Length);
foreach (PDF417BarcodeData barcode in barcodes)
{
Console.WriteLine(" At {0} and data: {1}", barcode.Bounds, barcode.Value);
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Barcode
Imports Leadtools.ImageProcessing
Public Sub PDF417Barcode_Example()
Dim imageFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "MyPDF417Barcodes.tif")
Dim engine As New BarcodeEngine()
' Create the image to write the barcodes to
Dim resolution As Integer = 300
Using image As RasterImage = RasterImage.Create(CType(8.5 * resolution, Integer), CType(11.0 * resolution, Integer), 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))
' Write two PDF417 barcodes
WriteBarcode(engine.Writer, image, "DATA1", 10, 10, True)
WriteBarcode(engine.Writer, image, "DATA2", 20, 20, False)
' Save the image
Using codecs As New RasterCodecs()
codecs.Save(image, imageFileName, RasterImageFormat.CcittGroup4, 1)
End Using
End Using
' Now read the barcodes again
Using codecs As New RasterCodecs()
Using image As RasterImage = codecs.Load(imageFileName)
ReadBarcodes(engine.Reader, image)
End Using
End Using
End Sub
Private Sub WriteBarcode(ByVal writer As BarcodeWriter, ByVal image As RasterImage, ByVal value As String, ByVal rows As Integer, ByVal columns As Integer, ByVal topLeft As Boolean)
' Create the barcode data
Dim barcode As New PDF417BarcodeData()
barcode.Value = value
barcode.Group = 0
' We will use the alignment to position the barcodes, so use all of the image
barcode.Bounds = New LogicalRectangle(0, 0, image.ImageWidth, image.ImageHeight, LogicalUnit.Pixel)
' Set the write options
Dim options As New PDF417BarcodeWriteOptions()
If topLeft Then
options.HorizontalAlignment = BarcodeAlignment.Near
options.VerticalAlignment = BarcodeAlignment.Near
Else
options.HorizontalAlignment = BarcodeAlignment.Far
options.VerticalAlignment = BarcodeAlignment.Far
End If
options.Truncated = False
options.EnableGroupMode = False
options.SymbolWidthAspectRatio = 2
options.SymbolHeightAspectRatio = 1
options.LimitByRowsAndColumns = True
options.Rows = rows
options.Columns = columns
options.XModule = 30
options.XModuleAspectRatio = 3
options.ECCLevel = PDF417BarcodeECCLevel.Level0
options.ECCPercentage = 0
' Write it
Console.WriteLine("Writing barcode with symbol rows/columns: {0}/{1} and Data: {2}", rows, columns, value)
writer.WriteBarcode(image, barcode, options)
End Sub
Private Sub ReadBarcodes(ByVal reader As BarcodeReader, ByVal image As RasterImage)
' Setup read options
Dim options As New PDF417BarcodeReadOptions()
options.SearchDirection = BarcodeSearchDirection.Horizontal
options.EnableDoublePass = False
options.EnableFastMode = False
options.ReadMode = PDF417BarcodeReadMode.Mode0
options.ReturnCorruptedSymbolArea = False
options.ReadOptionalMacroFileNameField = False
options.ReadOptionalMacroSegmentCountField = False
options.ReadOptionalMacroTimestampField = False
options.ReadOptionalMacroSenderField = False
options.ReadOptionalMacroAddresseeField = False
options.ReadOptionalMacroFileSizeField = False
options.ReadOptionalMacroChecksumField = False
options.ReadOptionalMacro79AndAZField = False
Console.WriteLine("Reading Barcodes")
Dim barcodes() As BarcodeData = reader.ReadBarcodes(image, LogicalRectangle.Empty, 0, New BarcodeSymbology() {BarcodeSymbology.PDF417}, New BarcodeReadOptions() {options})
Console.WriteLine("{0} barcodes found:", barcodes.Length)
For Each barcode As PDF417BarcodeData In barcodes
Console.WriteLine(" At {0} and data: {1}", barcode.Bounds, barcode.Value)
Next
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;
using Leadtools.Examples;
public void PDF417Barcode_Example(RasterImage image, Stream outStream)
{
BarcodeEngine engine = new BarcodeEngine();
// Create the image to write the barcodes to
RasterCodecs codecs = new RasterCodecs();
// Write two PDF417 barcodes
WriteBarcode(engine.Writer, image, "DATA1", 10, 10, true);
WriteBarcode(engine.Writer, image, "DATA2", 20, 20, false);
// Save the image
codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1);
// Now read the barcodes again
ReadBarcodes(engine.Reader, image);
}
private void WriteBarcode(BarcodeWriter writer, RasterImage image, string value, int rows, int columns, bool topLeft)
{
// Create the barcode data
PDF417BarcodeData barcode = new PDF417BarcodeData();
barcode.Value = value;
barcode.Group = 0;
// We will use the alignment to position the barcodes, so use all of the image
barcode.Bounds = new LogicalRectangle(0, 0, image.ImageWidth, image.ImageHeight, LogicalUnit.Pixel);
// Set the write options
PDF417BarcodeWriteOptions options = new PDF417BarcodeWriteOptions();
if (topLeft)
{
options.HorizontalAlignment = BarcodeAlignment.Near;
options.VerticalAlignment = BarcodeAlignment.Near;
}
else
{
options.HorizontalAlignment = BarcodeAlignment.Far;
options.VerticalAlignment = BarcodeAlignment.Far;
}
options.Truncated = false;
options.EnableGroupMode = false;
options.SymbolWidthAspectRatio = 2;
options.SymbolHeightAspectRatio = 1;
options.LimitByRowsAndColumns = true;
options.Rows = rows;
options.Columns = columns;
options.XModule = 30;
options.XModuleAspectRatio = 3;
options.ECCLevel = PDF417BarcodeECCLevel.Level0;
options.ECCPercentage = 0;
// Write it
Console.WriteLine("Writing barcode with symbol rows/columns: {0}/{1} and Data: {2}", rows, columns, value);
writer.WriteBarcode(image, barcode, options);
}
private void ReadBarcodes(BarcodeReader reader, RasterImage image)
{
// Setup read options
PDF417BarcodeReadOptions options = new PDF417BarcodeReadOptions();
options.SearchDirection = BarcodeSearchDirection.Horizontal;
options.EnableDoublePass = false;
options.EnableFastMode = false;
options.ReadMode = PDF417BarcodeReadMode.Mode0;
options.ReturnCorruptedSymbolArea = false;
options.ReadOptionalMacroFileNameField = false;
options.ReadOptionalMacroSegmentCountField = false;
options.ReadOptionalMacroTimestampField = false;
options.ReadOptionalMacroSenderField = false;
options.ReadOptionalMacroAddresseeField = false;
options.ReadOptionalMacroFileSizeField = false;
options.ReadOptionalMacroChecksumField = false;
options.ReadOptionalMacro79AndAZField = false;
Console.WriteLine("Reading Barcodes");
BarcodeData[] barcodes = reader.ReadBarcodes(image, LogicalRectangle.Empty, 0, new BarcodeSymbology[] { BarcodeSymbology.PDF417 }, new BarcodeReadOptions[] { options });
Console.WriteLine("{0} barcodes found:", barcodes.Length);
foreach (PDF417BarcodeData barcode in barcodes)
{
Console.WriteLine(" At {0} and data: {1}", barcode.Bounds, barcode.Value);
}
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Barcode
Imports Leadtools.ImageProcessing
Public Sub PDF417Barcode_Example(ByVal image As RasterImage, ByVal outStream As Stream)
Dim engine As BarcodeEngine = New BarcodeEngine()
' Create the image to write the barcodes to
Dim codecs As RasterCodecs = New RasterCodecs()
' Write two PDF417 barcodes
WriteBarcode(engine.Writer, image, "DATA1", 10, 10, True)
WriteBarcode(engine.Writer, image, "DATA2", 20, 20, False)
' Save the image
codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1)
' Now read the barcodes again
ReadBarcodes(engine.Reader, image)
End Sub
Private Sub WriteBarcode(ByVal writer As BarcodeWriter, ByVal image As RasterImage, ByVal value As String, ByVal rows As Integer, ByVal columns As Integer, ByVal topLeft As Boolean)
' Create the barcode data
Dim barcode As PDF417BarcodeData = New PDF417BarcodeData()
barcode.Value = value
barcode.Group = 0
' We will use the alignment to position the barcodes, so use all of the image
barcode.Bounds = New LogicalRectangle(0, 0, image.ImageWidth, image.ImageHeight, LogicalUnit.Pixel)
' Set the write options
Dim options As PDF417BarcodeWriteOptions = New PDF417BarcodeWriteOptions()
If topLeft Then
options.HorizontalAlignment = BarcodeAlignment.Near
options.VerticalAlignment = BarcodeAlignment.Near
Else
options.HorizontalAlignment = BarcodeAlignment.Far
options.VerticalAlignment = BarcodeAlignment.Far
End If
options.Truncated = False
options.EnableGroupMode = False
options.SymbolWidthAspectRatio = 2
options.SymbolHeightAspectRatio = 1
options.LimitByRowsAndColumns = True
options.Rows = rows
options.Columns = columns
options.XModule = 30
options.XModuleAspectRatio = 3
options.ECCLevel = PDF417BarcodeECCLevel.Level0
options.ECCPercentage = 0
' Write it
Console.WriteLine("Writing barcode with symbol rows/columns: {0}/{1} and Data: {2}", rows, columns, value)
writer.WriteBarcode(image, barcode, options)
End Sub
Private Sub ReadBarcodes(ByVal reader As BarcodeReader, ByVal image As RasterImage)
' Setup read options
Dim options As PDF417BarcodeReadOptions = New PDF417BarcodeReadOptions()
options.SearchDirection = BarcodeSearchDirection.Horizontal
options.EnableDoublePass = False
options.EnableFastMode = False
options.ReadMode = PDF417BarcodeReadMode.Mode0
options.ReturnCorruptedSymbolArea = False
options.ReadOptionalMacroFileNameField = False
options.ReadOptionalMacroSegmentCountField = False
options.ReadOptionalMacroTimestampField = False
options.ReadOptionalMacroSenderField = False
options.ReadOptionalMacroAddresseeField = False
options.ReadOptionalMacroFileSizeField = False
options.ReadOptionalMacroChecksumField = False
options.ReadOptionalMacro79AndAZField = False
Console.WriteLine("Reading Barcodes")
Dim barcodes As BarcodeData() = reader.ReadBarcodes(image, LogicalRectangle.Empty, 0, New BarcodeSymbology() {BarcodeSymbology.PDF417}, New BarcodeReadOptions() {options})
Console.WriteLine("{0} barcodes found:", barcodes.Length)
For Each barcode As PDF417BarcodeData In barcodes
Console.WriteLine(" At {0} and data: {1}", barcode.Bounds, barcode.Value)
Next barcode
End Sub
MicroPDF417BarcodeReadOptions Class
MicroPDF417BarcodeWriteOptions Class
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