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LEADTOOLS Forms (Leadtools.Forms.DocumentWriters assembly)

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EmfDocumentOptions Class








Members 
Provides extra options to use when saving a document using the Windows Enhanced Meta File (EMF) format.
Object Model
Syntax
[DataContractAttribute()]
[SerializableAttribute()]
public class EmfDocumentOptions : DocumentOptions 
'Declaration
 
<DataContractAttribute()>
<SerializableAttribute()>
Public Class EmfDocumentOptions 
   Inherits DocumentOptions
'Usage
 
Dim instance As EmfDocumentOptions
public sealed class EmfDocumentOptions : DocumentOptions 
public class EmfDocumentOptions extends DocumentOptions
function Leadtools.Forms.DocumentWriters.EmfDocumentOptions()
[DataContractAttribute()]
[SerializableAttribute()]
public ref class EmfDocumentOptions : public DocumentOptions 
Remarks

The Windows Enhanced Meta File (EMF) format does not support multi-page documents. Therefore, only the last page added with the DocumentWriter.AddPage will be used in the final document.

Note that this format does not support calling DocumentWriter.InsertPage.

The options set in the EmfDocumentOptions class will be used when the user saves a document using the DocumentFormat.Emf format.

To change the options used with the EMF format, perform the following steps:

  1. Use the DocumentWriter.GetOptions method of the DocumentWriter object being used. Pass DocumentFormat.Emf to the format parameter. Note that the resulting object from the base DocumentOptions class needs to be cast to EmfDocumentOptions.
  2. Use the various EmfDocumentOptions properties to change the options.
  3. Use DocumentWriter.SetOptions to set the new options in the engine.
  4. Now you can call the DocumentWriter.BeginDocument method (with DocumentFormat.Emf for the format parameter) to create a new document and add the pages.

Note that this format does not support calling DocumentWriter.InsertPage.

Currently, the EmfDocumentOptions class contains no extra options.

Example

This example will create a new Windows Enhanced Meta File (EMF) file using the various supported options.

Copy Code  
Imports Leadtools.Forms.DocumentWriters
Imports Leadtools
Imports Leadtools.Codecs

      
Public Sub EmfDocumentOptionsExample()
   Dim inputFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf")
   Dim outputFileNameTemplate As String = Path.Combine(LEAD_VARS.ImagesDir, "Example{0}.emf")
   ' Setup a new RasterCodecs object
   Dim codecs As New RasterCodecs()
   codecs.Options.RasterizeDocument.Load.Resolution = 300

   ' Get the number of pages in the input document
   Dim pageCount As Integer = codecs.GetTotalPages(inputFileName)

   ' Create a new instance of the LEADTOOLS Document Writer
   Dim docWriter As New DocumentWriter()

   ' Change the EMF options
   Dim emfOptions As EmfDocumentOptions = DirectCast(docWriter.GetOptions(DocumentFormat.Emf), EmfDocumentOptions)
   ' EMF currently does not have any extra options
   ' In the future, you can modify the options here if needed
   docWriter.SetOptions(DocumentFormat.Emf, emfOptions)

   ' EMF does not support multiple pages, so we will create the document inside the loop

   ' Loop through all the pages
   For pageNumber As Integer = 1 To pageCount
      Dim outputFileName As String = String.Format(outputFileNameTemplate, pageNumber)

      ' Create a new EMF document
      Console.WriteLine("Creating new EMF document : {0}", outputFileName)
      docWriter.BeginDocument(outputFileName, DocumentFormat.Emf)

      ' Get the page as SVG
      Console.WriteLine("Loading page {0}", pageNumber)
      Dim page As New DocumentSvgPage()
      page.SvgDocument = codecs.LoadSvg(inputFileName, pageNumber, Nothing)

      ' Add the page
      Console.WriteLine("Adding page {0}", pageNumber)
      docWriter.AddPage(page)

      page.SvgDocument.Dispose()

      ' Finish writing theis EMF file on disk
      docWriter.EndDocument()
   Next
   codecs.Dispose()
End Sub
using Leadtools.Forms.DocumentWriters;
using Leadtools;
using Leadtools.Codecs;

public void EmfDocumentOptionsExample()
{
   var inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf");
   var outputFileNameTemplate = Path.Combine(LEAD_VARS.ImagesDir, "Example{0}.emf");
   // Setup a new RasterCodecs object
   var codecs = new RasterCodecs();
   codecs.Options.RasterizeDocument.Load.Resolution = 300;

   // Get the number of pages in the input document
   var pageCount = codecs.GetTotalPages(inputFileName);

   // Create a new instance of the LEADTOOLS Document Writer
   var docWriter = new DocumentWriter();

   // Change the EMF options
   var emfOptions = docWriter.GetOptions(DocumentFormat.Emf) as EmfDocumentOptions;
   // EMF currently does not have any extra options
   // In the future, you can modify the options here if needed
   docWriter.SetOptions(DocumentFormat.Emf, emfOptions);

   // EMF does not support multiple pages, so we will create the document inside the loop

   // Loop through all the pages
   for (var pageNumber = 1; pageNumber <= pageCount; pageNumber++)
   {
      var outputFileName = string.Format(outputFileNameTemplate, pageNumber);

      // Create a new EMF document
      Console.WriteLine("Creating new EMF document : {0}", outputFileName);
      docWriter.BeginDocument(outputFileName, DocumentFormat.Emf);

      // Get the page as SVG
      Console.WriteLine("Loading page {0}", pageNumber);
      var page = new DocumentSvgPage();
      page.SvgDocument = codecs.LoadSvg(inputFileName, pageNumber, null);

      // Add the page
      Console.WriteLine("Adding page {0}", pageNumber);
      docWriter.AddPage(page);

      page.SvgDocument.Dispose();

      // Finish writing theis EMF file on disk
      docWriter.EndDocument();
   }

   codecs.Dispose();
}
Requirements

Target Platforms

See Also

Reference

EmfDocumentOptions Members
Leadtools.Forms.DocumentWriters Namespace
DocumentWriter Class
Programming with LEADTOOLS Document Writers
Files to be Included with Your Application
Unlocking Special LEAD Features

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Leadtools.Forms.DocumentWriters requires a Document or Medical toolkit license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features