Public MustInherit Class RasterCommand 
   Implements IRasterCommand 

Dim instance As RasterCommand

public abstract class RasterCommand : IRasterCommand  

public ref class RasterCommand abstract : public IRasterCommand  

Public Sub RasterCommandExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim rotatedFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_rotated.bmp")
      Dim flippedFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_flipped.bmp")

      ' Load the source image from disk
      Dim image As RasterImage = codecs.Load(srcFileName)

      ' flip the image
      Dim flip As FlipCommand = New FlipCommand(False)
      RunCommand(image, flip)

      ' save the image
      codecs.Save(image, flippedFileName, RasterImageFormat.Bmp, 24)

      ' rotate the image by 45 degrees
      Dim rotate As RotateCommand = New RotateCommand()
      rotate.Angle = 45 * 100
      rotate.FillColor = RasterColor.FromKnownColor(RasterKnownColor.White)
      rotate.Flags = RotateCommandFlags.Resize
      RunCommand(image, rotate)

      ' save the image
      codecs.Save(image, rotatedFileName, RasterImageFormat.Bmp, 24)

      ' clean up
      image.Dispose()
   End Sub

   Private cancelAt50 As Boolean

   Private Sub RunCommand(ByVal image As RasterImage, ByVal command As IRasterCommand)
      ' subscribe to the progress event of the command
      AddHandler command.Progress, AddressOf command_Progress

      ' if this is a flip command, we want to stop at 50 percent
      cancelAt50 = TypeOf command Is FlipCommand

      ' run the command
      command.Run(image)

      RemoveHandler command.Progress, AddressOf command_Progress
   End Sub

   Private Sub command_Progress(ByVal sender As Object, ByVal e As RasterCommandProgressEventArgs)
      ' show the percentage
      Console.WriteLine(e.Percent)

      ' check if we need to cancel the command at 50%
      If e.Percent = 50 AndAlso cancelAt50 Then
         e.Cancel = True
      End If
   End Sub

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

public void RasterCommandExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string rotatedFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_rotated.bmp");
      string flippedFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_flipped.bmp");

      // Load the source image from disk
      RasterImage image = codecs.Load(srcFileName);

      // flip the image
      FlipCommand flip = new FlipCommand(false);
      RunCommand(image, flip);

      // save the image
      codecs.Save(image, flippedFileName, RasterImageFormat.Bmp, 24);

      // rotate the image by 45 degrees
      RotateCommand rotate = new RotateCommand();
      rotate.Angle = 45 * 100;
      rotate.FillColor = RasterColor.FromKnownColor(RasterKnownColor.White);
      rotate.Flags = RotateCommandFlags.Resize;
      RunCommand(image, rotate);

      // save the image
      codecs.Save(image, rotatedFileName, RasterImageFormat.Bmp, 24);

      // clean up
      image.Dispose();
   }

   bool cancelAt50;

   void RunCommand(RasterImage image, IRasterCommand command)
   {
      // subscribe to the progress event of the command
      command.Progress += new EventHandler<RasterCommandProgressEventArgs>(command_Progress);

      // if this is a flip command, we want to stop at 50 percent
      cancelAt50 = command is FlipCommand;

      // run the command
      command.Run(image);

      command.Progress -= new EventHandler<RasterCommandProgressEventArgs>(command_Progress);
   }

   void command_Progress(object sender, RasterCommandProgressEventArgs e)
   {
      // show the percentage
      Console.WriteLine(e.Percent);

      // check if we need to cancel the command at 50%
      if(e.Percent == 50 && cancelAt50)
         e.Cancel = true;
   }

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

public void RasterCommandExample(RasterImage image, Stream flippedStream, Stream rotatedStream)
{
   RasterCodecs codecs = new RasterCodecs();
   // flip the image
   FlipCommand flip = new FlipCommand(false);
   RunCommand(image, flip);

   // save the image
   codecs.Save(image, flippedStream, RasterImageFormat.Png, 24);

   // rotate the image by 45 degrees
   RotateCommand rotate = new RotateCommand();
   rotate.Angle = 45 * 100;
   rotate.FillColor = RasterColorConverter.FromColor(Colors.White);
   rotate.Flags = RotateCommandFlags.Resize;
   RunCommand(image, rotate);

   // save the image
   codecs.Save(image, rotatedStream, RasterImageFormat.Png, 24);

   // clean up
   image.Dispose();
}

bool cancelAt50;

void RunCommand(RasterImage image, IRasterCommand command)
{
   // subscribe to the progress event of the command
   command.Progress += new EventHandler<RasterCommandProgressEventArgs>(command_Progress);

   // if this is a flip command, we want to stop at 50 percent
   cancelAt50 = command is FlipCommand;

   // run the command
   command.Run(image);

   command.Progress -= new EventHandler<RasterCommandProgressEventArgs>(command_Progress);
}

void command_Progress(object sender, RasterCommandProgressEventArgs e)
{
   // show the percentage
   Debug.WriteLine(e.Percent);

   // check if we need to cancel the command at 50%
   if(e.Percent == 50 && cancelAt50)
      e.Cancel = true;
}

Public Sub RasterCommandExample(ByVal image As RasterImage, ByVal flippedStream As Stream, ByVal rotatedStream As Stream)
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' flip the image
   Dim flip As FlipCommand = New FlipCommand(False)
   RunCommand(image, flip)

   ' save the image
   codecs.Save(image, flippedStream, RasterImageFormat.Png, 24)

   ' rotate the image by 45 degrees
   Dim rotate As RotateCommand = New RotateCommand()
   rotate.Angle = 45 * 100
   rotate.FillColor = RasterColorConverter.FromColor(Colors.White)
   rotate.Flags = RotateCommandFlags.Resize
   RunCommand(image, rotate)

   ' save the image
   codecs.Save(image, rotatedStream, RasterImageFormat.Png, 24)

   ' clean up
   image.Dispose()
End Sub

Private cancelAt50 As Boolean

Private Sub RunCommand(ByVal image As RasterImage, ByVal command As IRasterCommand)
   ' subscribe to the progress event of the command
   AddHandler command.Progress, AddressOf command_Progress

   ' if this is a flip command, we want to stop at 50 percent
   cancelAt50 = TypeOf command Is FlipCommand

   ' run the command
   command.Run(image)

   RemoveHandler command.Progress, AddressOf command_Progress
End Sub

Private Sub command_Progress(ByVal sender As Object, ByVal e As RasterCommandProgressEventArgs)
   ' show the percentage
   Debug.WriteLine(e.Percent)

   ' check if we need to cancel the command at 50%
   If e.Percent = 50 AndAlso cancelAt50 Then
      e.Cancel = True
   End If
End Sub