Public Shared Function UpdateMetaFileResolution( _
   ByVal emfHandle As IntPtr, _
   ByVal xResolution As Integer, _
   ByVal yResolution As Integer _
) As IntPtr

Dim emfHandle As IntPtr
Dim xResolution As Integer
Dim yResolution As Integer
Dim value As IntPtr
 
value = DocumentWriter.UpdateMetaFileResolution(emfHandle, xResolution, yResolution)

public static IntPtr UpdateMetaFileResolution( 
   IntPtr emfHandle,
   int xResolution,
   int yResolution
)

public:
static IntPtr UpdateMetaFileResolution( 
   IntPtr emfHandle,
   int xResolution,
   int yResolution
) 

Private Shared Sub ShowMetaFileDimension(ByVal hemf As IntPtr)
   ' Use System.Drawing.Imaging.Metafile to load the EMF and get its information
   Using mf As System.Drawing.Imaging.Metafile = New System.Drawing.Imaging.Metafile(hemf, False)
      Console.WriteLine("Size: {0} by {1} pixels", mf.Width, mf.Height)
      Console.WriteLine("Resolution: {0} by {1} pixels/inch", mf.HorizontalResolution, mf.VerticalResolution)
   End Using
End Sub
'' 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 static void ShowMetaFileDimension(IntPtr hemf)
   {
      // Use System.Drawing.Imaging.Metafile to load the EMF and get its information
      using (System.Drawing.Imaging.Metafile mf = new System.Drawing.Imaging.Metafile(hemf, false))
      {
         Console.WriteLine("Size: {0} by {1} pixels", mf.Width, mf.Height);
         Console.WriteLine("Resolution: {0} by {1} pixels/inch", mf.HorizontalResolution, mf.VerticalResolution);
      }
   }
   //// Windows API
   //[DllImport("gdi32")]
   //private extern static IntPtr GetEnhMetaFile(string lpszMetaFile);
   //[DllImport("gdi32")]
   //private extern static int DeleteEnhMetaFile(IntPtr hemf);

   private static void ChangeMetaFileResolutionExample()
   {
      // Load the original meta file
      IntPtr hemf = GetEnhMetaFile(Path.Combine(LEAD_VARS.ImagesDir,"Ocr1.emf"));

      // Show the dimension
      Console.WriteLine("Original EMF dimension:");
      ShowMetaFileDimension(hemf);

      // Change the resolution to be 200 by 200 dots/inch
      IntPtr hemfDest = DocumentWriter.UpdateMetaFileResolution(hemf, 200, 200);

      // No need for the original handle anymore
      DeleteEnhMetaFile(hemf);

      Console.WriteLine("New EMF dimension:");
      ShowMetaFileDimension(hemfDest);

      DeleteEnhMetaFile(hemfDest);
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}