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
            ' create the image processing command
            Dim command As New Vintasoft.Imaging.ImageProcessing.Transforms.QuadrilateralWarpCommand(New System.Drawing.PointF() {New System.Drawing.PointF(50, 50), New System.Drawing.PointF(175, 75), New System.Drawing.PointF(75, 175), New System.Drawing.PointF(250, 250)})

            ' 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")
        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

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
        {
            // create the image processing command
            Vintasoft.Imaging.ImageProcessing.Transforms.QuadrilateralWarpCommand command =
                new Vintasoft.Imaging.ImageProcessing.Transforms.QuadrilateralWarpCommand(
                    new System.Drawing.PointF[] {
                    new System.Drawing.PointF(50, 50), new System.Drawing.PointF(175, 75),
                    new System.Drawing.PointF(75, 175), new System.Drawing.PointF(250, 250)
                        });

            // 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
    // ...
}