/// <summary>
        /// Ridimensiona il logo per adattarlo al report
        /// </summary> 
        /// <returns>Image</returns>
        public static System.Drawing.Image ResizeLogoForReport(MemoryStream msLogo)
        {
                    
            // recupero immagine
            System.Drawing.Image imageFile = System.Drawing.Image.FromStream(msLogo);

            //altezza e larghezza immagine
            int w = imageFile.Width;
            int h = imageFile.Height;

            int size = w;
            if (h > w)
            {
                size = h;
            }
            //controllo le dimensioni, se maggiori di 100 ridimensiono        
            int maxsize = 100;
            if (size > (maxsize + 1))
            {
                size = maxsize;

                if (w > h)
                {
                    double rapp = (double)maxsize / (double)w;
                    w = maxsize;
                    h = Convert.ToInt32((double)h * rapp);
                }
                else
                {
                    double rapp = (double)maxsize / (double)h;
                    h = maxsize;
                    w = Convert.ToInt32((double)w * rapp);
                }
                imageFile.GetThumbnailImage(w, h, new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback), IntPtr.Zero);
                MemoryStream imageStream = new MemoryStream();
                imageFile.Save(imageStream, System.Drawing.Imaging.ImageFormat.Jpeg);
                imageStream.Close();
            }
            //quadrato vuoto
            Bitmap emptyBmp = new Bitmap(size, size);
            // creazione di un oggetto di tipo Graphics
            Graphics g = Graphics.FromImage(emptyBmp);
            //sfondo
            SolidBrush drawBrush = new SolidBrush(Color.White);
            //disegno un rettangolo
            Rectangle rectSfondo = new Rectangle(0, 0, size, size);
            g.FillRectangle(drawBrush, rectSfondo);
            //disegno un rettangolo
            int pointX = 0;
            int pointY = 0;
            if (h > w)
            {
                pointX = ((h - w) / 2);
            }
            else
            {
                pointY = ((w - h) / 2);
            }
            Rectangle rect = new Rectangle(pointX, pointY, w, h);
            drawBrush = new SolidBrush(Color.Black);        

            g.DrawImage(imageFile, rect);
            // Generazione del punto di posizionamento del testo
            Point A = new Point(pointX, pointY);
            Point B = new Point(pointX + w, pointY);
            Point C = new Point(pointX, pointY + h);
            Point D = new Point(pointX + w, pointY + h);
            //g.DrawRectangle(new Pen(drawBrush, 1), pointX-2, pointY-2,w+4,h+4);
            g.DrawLine(new Pen(drawBrush, 1), A, B); // da A a B
            g.DrawLine(new Pen(drawBrush, 1), C, D); //da C a D
            g.DrawLine(new Pen(drawBrush, 1), A, C); //da A a C
            g.DrawLine(new Pen(drawBrush, 1), B, D); //da B a D       


            // restituzione Image all'oggetto chiamante
            g.Flush();
            MemoryStream ms1 = new MemoryStream();
            emptyBmp.Save(ms1, System.Drawing.Imaging.ImageFormat.Jpeg);
            ms1.Close();
            return System.Drawing.Image.FromHbitmap(emptyBmp.GetHbitmap()); ;
        }
        ///  <summary>
        /// Required, but not used
        /// </summary>
        /// <returns>true</returns>
        public static bool ThumbnailCallback()
        {
            return true;
        }