Public Class ExtractMessageCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 

Dim instance As ExtractMessageCommand

public class ExtractMessageCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

public ref class ExtractMessageCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

Public Sub ExtractMessageCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   Dim addmessagecommand As AddMessageCommand = New AddMessageCommand
   addmessagecommand.Message = "LEAD Technologies, Inc."
   ' Add the above message to image in the default position and with the default password.
   addmessagecommand.Run(leadImage)
   ' Prepare the command

   Dim command As ExtractMessageCommand = New ExtractMessageCommand

   ' set password and start properties values same as AddMessageCommand values.
   command.Password = Nothing
   command.Start = New LeadPoint(0, 0)
   command.Directory = LEAD_VARS.ImagesDir

   ' Extract the message from the image in the default position and with the default password.
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)


   If (Not (IsNothing(command.Message))) Then
      MessageBox.Show(command.Message, "Extracted Message")
   ElseIf (Not (IsNothing(command.FileName))) Then
      MessageBox.Show(command.FileName, "Extracted File")
   End If

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void ExtractMessageCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"));

      // Prepare the command
      AddMessageCommand addmessageCommand = new AddMessageCommand();
      addmessageCommand.Password = null;
      addmessageCommand.Start = new LeadPoint(0, 0);
      addmessageCommand.Message = "LEAD Technologies, Inc.";
      // Add the above message to image in the default position and with the default password.
      addmessageCommand.Run(image);

      // Prepare the command
      ExtractMessageCommand command = new ExtractMessageCommand();

      // set password and start properties values same as AddMessageCommand values.
      command.Password    = null;
      command.Start = new LeadPoint(0, 0);
      command.Directory   = Path.Combine(LEAD_VARS.ImagesDir, "");

      // Extract the message from the image in the default position and with the default password.
      command.Run(image);
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

      if(command.Message != null && command.Message.Length != 0)
         MessageBox.Show(command.Message, "Extracted Message");
      else  if (command.FileName != null && command.FileName.Length != 0)
         MessageBox.Show(command.FileName, "Extracted File");


   }

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