Class OverlayWithBlendingCommandExample
    Public Sub ProcessImage()
        ' [ do not forget to set your image file path here! ]
        ' create an image collection
        Using images As New Vintasoft.Imaging.ImageCollection()
            ' add image to the image collection
            images.Add("Flower.jpg")
            Try
                Using overlayImage As New Vintasoft.Imaging.VintasoftImage("Background.jpg")
                    ' create the image processing command
                    Dim command As New Vintasoft.Imaging.ImageProcessing.OverlayWithBlendingCommand()
                    command.OverlayImage = overlayImage
                    command.BlendingMode = Vintasoft.Imaging.BlendingMode.Multiply

                    ' subscribe to progress event of image processing command
                    AddHandler command.Progress, New System.EventHandler(Of Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs)(AddressOf command_Progress)

                    Try
                        ' for each image in image collection
                        For Each image As Vintasoft.Imaging.VintasoftImage In images
                            ' apply the image processing command to the image
                            command.ExecuteInPlace(image)
                        Next
                    Catch ex As Vintasoft.Imaging.ImageProcessing.ImageProcessingException
                        ' show error message
                        System.Windows.Forms.MessageBox.Show(ex.Message)
                        Return
                    End Try

                    ' save the processed image collection to a new TIFF file
                    images.SaveSync("processed-image.tif")
                End Using
            Finally
                images.ClearAndDisposeItems()
            End Try
        End Using
    End Sub

    Private Sub command_Progress(sender As Object, e As Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs)
        ' update progress info using e.Progress property
        ' ...

        ' cancel execution of command using e.Cancel property if necessary
        ' ...
    End Sub
End Class

class OverlayWithBlendingCommandExample
{
    public void ProcessImage()
    {
        // [ do not forget to set your image file path here! ]
        // create an image collection
        using (Vintasoft.Imaging.ImageCollection images = new Vintasoft.Imaging.ImageCollection())
        {
            // add image to the image collection
            images.Add("Flower.jpg");
            try
            {
                using (Vintasoft.Imaging.VintasoftImage overlayImage = new Vintasoft.Imaging.VintasoftImage("Background.jpg"))
                {
                    // create the image processing command
                    Vintasoft.Imaging.ImageProcessing.OverlayWithBlendingCommand command =
                    new Vintasoft.Imaging.ImageProcessing.OverlayWithBlendingCommand();
                    command.OverlayImage = overlayImage;
                    command.BlendingMode = Vintasoft.Imaging.BlendingMode.Multiply;

                    // subscribe to progress event of image processing command
                    command.Progress +=
                        new System.EventHandler<Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs>(command_Progress);

                    try
                    {
                        // for each image in image collection
                        foreach (Vintasoft.Imaging.VintasoftImage image in images)
                        {
                            // apply the image processing command to the image
                            command.ExecuteInPlace(image);
                        }
                    }
                    catch (Vintasoft.Imaging.ImageProcessing.ImageProcessingException ex)
                    {
                        // show error message
                        System.Windows.Forms.MessageBox.Show(ex.Message);
                        return;
                    }

                    // save the processed image collection to a new TIFF file
                    images.SaveSync("processed-image.tif");
                }
            }
            finally
            {
                images.ClearAndDisposeItems();
            }
        }
    }

    void command_Progress(object sender, Vintasoft.Imaging.ImageProcessing.ImageProcessingProgressEventArgs e)
    {
        // update progress info using e.Progress property
        // ...

        // cancel execution of command using e.Cancel property if necessary
        // ...
    }
}