Public Sub SetParameters( _
   ByVal parameters As ConversionParameters _
) 

Dim instance As RasterColorConverterEngine
Dim parameters As ConversionParameters
 
instance.SetParameters(parameters)

public void SetParameters( 
   ConversionParameters parameters
)

public:
void SetParameters( 
   ConversionParameters^ parameters
) 

Public Function GetCmykBufferFromImage(ByVal bgrImage As RasterImage) As Byte()
      ' StartUp the ColorConversion.
      RasterColorConverterEngine.Startup()
      ' Image buffer array
      Dim bgrBuffer(bgrImage.BytesPerLine * bgrImage.Height) As Byte

      ' get image buffer
      Dim i As Integer
      For i = 0 To bgrImage.Height - 1
         bgrImage.GetRow(i, bgrBuffer, (i * bgrImage.BytesPerLine), bgrImage.BytesPerLine)
      Next i

      ' Initialize a new Converter object
      Dim converter As New RasterColorConverterEngine()

      Dim cmykBuffer(bgrImage.Height * bgrImage.Width * 4) As Byte

      Try
         ' Start the color conversion
         converter.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, Nothing)

         ' convert the image buffer 
         converter.Convert(bgrBuffer, _
            0, _
            cmykBuffer, _
            0, _
            bgrImage.Width, _
            bgrImage.Height, _
            CInt(bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8))), _
            0)

         ' stop the conversion
         converter.Stop()
      Catch ex As Exception
         MessageBox.Show(ex.Message)
      End Try

      RasterColorConverterEngine.Shutdown()

      Return cmykBuffer
   End Function

   Public Function GetImageFromCmykBuffer(ByVal cmykBuffer As Byte(), ByVal width As Integer, ByVal height As Integer) As RasterImage
      ' StartUp the ColorConversion.
      RasterColorConverterEngine.Startup()

      ' Initialize a new Converter object
      Dim Converter As New RasterColorConverterEngine()

      ' Initialize an image to hold the converted buffer.
      Dim cmykImage As RasterImage = Nothing
      Try
         cmykImage = New RasterImage(RasterMemoryFlags.Conventional, width, height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, Nothing, IntPtr.Zero, 0)

         ' Start the color conversion
         Converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Bgr, Nothing)

         ' convert the image buffer
         Converter.ConvertToImage(cmykBuffer, _
            0, _
            cmykImage, _
            width, _
            height, _
            0, _
            CInt(cmykImage.BytesPerLine - (cmykImage.Width * (cmykImage.BitsPerPixel / 8))))

         ' stop the conversion
         Converter.Stop()
      Catch ex As Exception
         MessageBox.Show(ex.Message)
      End Try

      ' Shutdown the ColorConversion.
      RasterColorConverterEngine.Shutdown()
      Return cmykImage
   End Function


   Public Sub SetParametersExample()
      ' StartUp the RasterCodecs.
      Dim codecs As New RasterCodecs

      ' StartUp the ColorConversion.
      RasterColorConverterEngine.Startup()

      ' The input file name
      Dim inputFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")

      ' load the input image as Bgr.
      Dim bgrImage As RasterImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1)

      Dim width As Integer = bgrImage.Width
      Dim height As Integer = bgrImage.Height
      Dim cmykBuffer() As Byte = GetCmykBufferFromImage(bgrImage)

      ' Initialize the Rgb buffer array
      Dim rgbBuffer(CInt(cmykBuffer.Length - cmykBuffer.Length / 4)) As Byte

      ' Initialize a new Converter object
      Dim converter As New RasterColorConverterEngine

      ' Initialize a new ConversionParameters class object.
      Dim convParams As ConversionParameters = New ConversionParameters

      ' we want to use the built in LEAD ICC conversion method and built in conversion
      convParams.Method = ConversionMethodFlags.UseBuiltIn Or ConversionMethodFlags.UseIcc

      ' set the active conversion method
      convParams.ActiveMethod = ConversionMethodFlags.UseBuiltIn

      ' Initialize WhitePoint property class.
      convParams.WhitePoint = New ConversionWhitePoint

      ' Set WhitePoint property.
      Dim whitePoint As ConversionWhitePoint
      whitePoint.WhitePoint = ConversionWhitePointType.D50
      convParams.WhitePoint = whitePoint

      ' Initialize CmykParameters property class.
      convParams.CmykParameters = New ConversionCmykParameters

      ' Set GcrLevel property.
      Dim cmykParameters As ConversionCmykParameters
      cmykParameters.GcrLevel = 150
      convParams.CmykParameters = cmykParameters

      Try
         ' Initialize the ColorConversion
         converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Rgb, convParams)

         ' convert the Cmyk buffer to Rgb buffer using Built-in conversion.
         converter.Convert(cmykBuffer, _
            0, _
            rgbBuffer, _
            0, _
            width, _
            height, _
            0, _
            CInt(bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8))))

         ' Change the active method for conversion
         convParams.Method = ConversionMethodFlags.ChangeActiveMethod Or ConversionMethodFlags.ChangeCmyk

         ' Switch to ICC conversion method
         convParams.ActiveMethod = ConversionMethodFlags.UseIcc

         ' Set Mask property.
         cmykParameters.Mask = ConversionCmykMask.Gcr

         ' Set GcrLevel property.
         cmykParameters.GcrLevel = 175
         convParams.CmykParameters = cmykParameters

         ' Update the conversion parameters
         converter.SetParameters(convParams)

         ' convert the image buffer 
         converter.Convert(cmykBuffer, _
         0, _
         rgbBuffer, _
         0, _
         width, _
         height, _
         0, _
         CInt(bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8))))

         ' Stop the ColorConversion
         converter.Stop()
      Catch ex As Exception
         MessageBox.Show(ex.Message)
         rgbBuffer = Nothing
      End Try

      ' the output File Name.
      Dim outputFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "ResultImage.bmp")

      ' Save the converted Image
      Dim cmykImage As RasterImage = GetImageFromCmykBuffer(cmykBuffer, width, height)
      codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24)

      ' Shutdown the ColorConversion.
      RasterColorConverterEngine.Shutdown()

      ' Shutdown the RasterCodecs
   End Sub

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

public byte[] GetCmykBufferFromImage(RasterImage bgrImage)
   {
      // StartUp the ColorConversion.
      RasterColorConverterEngine.Startup();
      // Image buffer array
      byte[] bgrBuffer = new byte[bgrImage.BytesPerLine * bgrImage.Height];

      // get image buffer
      for (int i = 0; i < bgrImage.Height; i++)
          bgrImage.GetRow(i, bgrBuffer, i * bgrImage.BytesPerLine, bgrImage.BytesPerLine);

      // Initialize a new Converter object
      RasterColorConverterEngine converter = new RasterColorConverterEngine();

      byte[] cmykBuffer = new byte[bgrImage.Height * bgrImage.Width * 4];

      try
      {
         // Start the color conversion
         converter.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, null);

         // convert the image buffer 
         converter.Convert(bgrBuffer, // input buffer
            0, // offset from the begining of the source buffer
            cmykBuffer, // output buffer
            0, // offset from the begining of the destination buffer
            bgrImage.Width, // pixels width
            bgrImage.Height, // pixels height
            bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)),
            0); // 0 bytes align

         // stop the conversion
         converter.Stop();
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }

      RasterColorConverterEngine.Shutdown();

      return cmykBuffer;
   }

   public RasterImage GetImageFromCmykBuffer(byte[] cmykBuffer, int width, int height)
   {
      // StartUp the ColorConversion.
      RasterColorConverterEngine.Startup();

      // Initialize a new Converter object
      RasterColorConverterEngine converter = new RasterColorConverterEngine();

      // Initialize an image to hold the converted buffer.
      RasterImage cmykImage = null;
      try
      {
         cmykImage = new RasterImage(RasterMemoryFlags.Conventional, width, height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, null, IntPtr.Zero, 0);

         // Start the color conversion
         converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Bgr, null);

         // convert the image buffer
         converter.ConvertToImage(cmykBuffer, // converted buffer
            0,                // offset from the begining of the source buffer
            cmykImage,        // image to be save
            width,   // pixels width
            height,  // pixels height
            0,                // 0 bytes align
            cmykImage.BytesPerLine - (cmykImage.Width * (cmykImage.BitsPerPixel / 8)));

         // stop the conversion
         converter.Stop();
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }
      // Shutdown the ColorConversion.
      RasterColorConverterEngine.Shutdown();
      return cmykImage;
   }


   public void SetParametersExample()
   {
      // Initialize the RasterCodecs
      RasterCodecs codecs = new RasterCodecs();

      // StartUp the ColorConversion.
      RasterColorConverterEngine.Startup();

      // The input file name
      string inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp");

      // load the input image as Bgr.
      RasterImage bgrImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1);

      int width = bgrImage.Width;
      int height = bgrImage.Height;
      byte[] cmykBuffer = GetCmykBufferFromImage(bgrImage);

      // Initialize the Rgb buffer array
      byte[] rgbBuffer = new byte[cmykBuffer.Length - cmykBuffer.Length / 4];

      // Initialize a new Converter object
      RasterColorConverterEngine converter = new RasterColorConverterEngine();

      // Initialize a new ConversionParameters class object.
      ConversionParameters convParams = new ConversionParameters();

      // we want to use the built in LEAD ICC conversion method and built in conversion
      convParams.Method = ConversionMethodFlags.UseBuiltIn | ConversionMethodFlags.UseIcc;

      // set the active conversion method
      convParams.ActiveMethod = ConversionMethodFlags.UseBuiltIn;

      // Initialize WhitePoint property class.
      convParams.WhitePoint = new ConversionWhitePoint();

      // Set WhitePoint property.
      ConversionWhitePoint whitePoint = new ConversionWhitePoint();
      whitePoint.WhitePoint = ConversionWhitePointType.D50;
      convParams.WhitePoint = whitePoint;

      // Initialize CmykParameters property class.
      convParams.CmykParameters = new ConversionCmykParameters();

      // Set GcrLevel property.
      ConversionCmykParameters cmykParameters = new ConversionCmykParameters();
      cmykParameters.GcrLevel = 150;
      convParams.CmykParameters = cmykParameters;

      try
      {
         // Initialize the ColorConversion
         converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Rgb, convParams);

         // convert the Cmyk buffer to Rgb buffer using Built-in conversion.
         converter.Convert(cmykBuffer,
            0,
            rgbBuffer,
            0,
            width,
            height,
            0,
            bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)));

         // Change the active method for conversion
         convParams.Method = ConversionMethodFlags.ChangeActiveMethod | ConversionMethodFlags.ChangeCmyk;

         // Switch to ICC conversion method
         convParams.ActiveMethod = ConversionMethodFlags.UseIcc;

         // Set Mask property.
         cmykParameters.Mask = ConversionCmykMask.Gcr;

         // Set GcrLevel property.
         cmykParameters.GcrLevel = 175;
         convParams.CmykParameters = cmykParameters;

         // Update the conversion parameters
         converter.SetParameters(convParams);

         // convert the image buffer 
         converter.Convert(cmykBuffer, 0, rgbBuffer, 0, width, height, 0, 0);

         // Stop the ColorConversion
         converter.Stop();
      }
      catch(Exception ex)
      {
         MessageBox.Show(ex.Message);
         rgbBuffer = null;
      }

      // the output File Name.
      string outputFileName = Path.Combine(LEAD_VARS.ImagesDir, "ResultImage.bmp");

      // Save the converted Image
      RasterImage cmykImage = GetImageFromCmykBuffer(cmykBuffer, width, height);
      codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24);

      // Shutdown the ColorConversion.
      RasterColorConverterEngine.Shutdown();

      // Shutdown the RasterColor
   }

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