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

Visual Basic

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' Windows API functions needed to load/delete an EMF <DllImport("gdi32.dll")> _ Private Shared Function GetEnhMetaFile(ByVal lpszMetaFile As String) As IntPtr End Function <DllImport("gdi32.dll")> _ Private Shared Function DeleteEnhMetaFile(ByVal hemf As IntPtr) As Boolean End Function Private Sub EmfDocumentOptionsExample()    ' Unlock the support needed for LEADTOOLS Document Writers (with PDF output)    RasterSupport.Unlock(RasterSupportType.DocumentWriters, "Replace with your own key here")    ' Create a new instance of the LEADTOOLS Document Writer    Dim docWriter As New DocumentWriter()    Dim outputFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Test.emf"    Dim emfFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Ocr1.emf"    ' Create a new EMF document    Console.WriteLine("Creating new EMF document: {0}", outputFileName)    docWriter.BeginDocument(outputFileName, DocumentFormat.Emf)    ' Use the Windows API to load the EMF    Dim emfHandle As IntPtr = GetEnhMetaFile(emfFileName)    ' Add the page    Dim page As DocumentPage = DocumentPage.Empty    page.EmfHandle = emfHandle    page.Image = Nothing    Console.WriteLine("Adding EMF page from: {0}", emfFileName)    docWriter.AddPage(page)    ' Use the Windows API to delete the EMF    DeleteEnhMetaFile(emfHandle)    ' Finally finish writing the PDF file on disk    docWriter.EndDocument() End Sub

C#

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// Windows API functions needed to load/delete an EMF  [DllImport("gdi32.dll")]  private static extern IntPtr GetEnhMetaFile(string lpszMetaFile);  [DllImport("gdi32.dll")]  private static extern bool DeleteEnhMetaFile(IntPtr hemf);  private void EmfDocumentOptionsExample()  {     // Unlock the support needed for LEADTOOLS Document Writers (with PDF output)     RasterSupport.Unlock(RasterSupportType.DocumentWriters, "Replace with your own key here");       // Create a new instance of the LEADTOOLS Document Writer     DocumentWriter docWriter = new DocumentWriter();       string outputFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Test.emf";     string emfFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Ocr1.emf";       // Create a new EMF document     Console.WriteLine("Creating new EMF document: {0}", outputFileName);     docWriter.BeginDocument(outputFileName, DocumentFormat.Emf);       // Use the Windows API to load the EMF     IntPtr emfHandle = GetEnhMetaFile(emfFileName);       // Add the page     DocumentPage page = DocumentPage.Empty;     page.EmfHandle = emfHandle;     page.Image = null;       Console.WriteLine("Adding EMF page from: {0}", emfFileName);     docWriter.AddPage(page);       // Use the Windows API to delete the EMF     DeleteEnhMetaFile(emfHandle);       // Finally finish writing the PDF file on disk     docWriter.EndDocument();  }

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.

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. Passing 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.

Currently, the EmfDocumentOptions class contains no extra options.

System.Object
   Leadtools.Forms.DocumentWriters.DocumentOptions
      Leadtools.Forms.DocumentWriters.EmfDocumentOptions

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference