/// <summary>
        /// iView.NET subroutine. Allows the user to remove or reduce the red eye from the specified region within the specified image.
        /// </summary>
        /// <param name="nX"></param>
        /// <param name="nY"></param>
        /// <returns></returns>
        private SResult SubRedEyeCorrectionTool(int nX, int nY)
        {
            if (!imgbx_MainImage.IsImageLoaded)
                return SResult.NullDisplayImage;

            int nImageWidth = imgbx_MainImage.ImageBoxImage.Width;
            int nImageHeight = imgbx_MainImage.ImageBoxImage.Height;
            int nBoxWidth = imgbx_MainImage.ImageBoxWidth;
            int nBoxHeight = imgbx_MainImage.ImageBoxHeight;

            // Translate the current x position.
            float fXPercent = 100 / ((float)nBoxWidth / (float)nX);
            float fX = (fXPercent / 100) * nImageWidth;

            // Translate the current y position.
            float fYPercent = 100 / ((float)nBoxHeight / (float)nY);
            float fY = (fYPercent / 100) * nImageHeight;

            int nPos = (m_oRedEyePanel.PupilSize / 2);
            Rectangle Rect = new Rectangle((int)fX - nPos, (int)fY - nPos,
                m_oRedEyePanel.PupilSize, m_oRedEyePanel.PupilSize);

            // Update the image edited status.
            ImageHasBeenEdited = true;

            // No elements in the list? Save the original state first.
            if (m_oUndoRedo.Count == 0)
                m_oUndoRedo.Add(imgbx_MainImage.ImageBoxImage);

            // Process the image.
            using (ImageProcessing oProcess = new ImageProcessing(imgbx_MainImage.ImageBoxImage))
            {
                // Apply the red eye correction.
                oProcess.RedEyeCorrection(Rect, 1.5f);

                // Update the main display image with the edited image.
                imgbx_MainImage.ImageBoxImage = oProcess.GetProcessedImage();
            }

            // Save the current image state.
            m_oUndoRedo.Add(imgbx_MainImage.ImageBoxImage);

            // Reset the current tool and cursor.
            m_nCurrentTool = Tool.None;
            imgbx_MainImage.Cursor = Cursors.Default;

            return SResult.Completed;
        }