How to print directly without showing report viewer in rdlc report ?

How to print directly without showing report viewer in rdlc report :

Youtube Video Link: https://www.youtube.com/watch?v=uTzwk6zBdQs  

C# Code: 

private static List<Stream> m_streams;
   private static int m_currentPageIndex = 0;
 //==========================

  LocalReport report = new LocalReport();
          string path = rptName;
          report.ReportPath = path;
          report.DataSources.Add(new ReportDataSource(dsName, ds.table[0]));
          report.SetParameters(parameters);
          PrintToPrinter(report);
//========================================================

  public static void PrintToPrinter(LocalReport report)
        {
            Export(report);

        }

  public static void Export(LocalReport report, bool print = true)
        {
            string deviceInfo =
             @"<DeviceInfo>
                <OutputFormat>EMF</OutputFormat>
                <PageWidth>3in</PageWidth>
                <PageHeight>8.3in</PageHeight>
                <MarginTop>0in</MarginTop>
                <MarginLeft>0.1in</MarginLeft>
                <MarginRight>0.1in</MarginRight>
                <MarginBottom>0in</MarginBottom>
            </DeviceInfo>";
            Warning[] warnings;
            m_streams = new List<Stream>();
            report.Render("Image", deviceInfo, CreateStream,out warnings);
            foreach (Stream stream in m_streams)
                stream.Position = 0;

            if (print)
            {
                Print();
            }
        }


public static void Print()
        {
            if (m_streams == null || m_streams.Count == 0)
                throw new Exception("Error: no stream to print.");
            PrintDocument printDoc = new PrintDocument();
            if (!printDoc.PrinterSettings.IsValid)
            {
                throw new Exception("Error: cannot find the default printer.");
            }
            else
            {
                printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
                m_currentPageIndex = 0;
                printDoc.Print();
            }
        }

 public static Stream CreateStream(string name,string fileNameExtension, Encoding encoding,string mimeType, bool willSeek)
        {
            Stream stream = new MemoryStream();
            m_streams.Add(stream);
            return stream;
        }

 public static void PrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage = new
               Metafile(m_streams[m_currentPageIndex]);

            // Adjust rectangular area with printer margins.
            Rectangle adjustedRect = new Rectangle(
                ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
                ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
                ev.PageBounds.Width,
                ev.PageBounds.Height);

            // Draw a white background for the report
            ev.Graphics.FillRectangle(Brushes.White, adjustedRect);

            // Draw the report content
            ev.Graphics.DrawImage(pageImage, adjustedRect);

            // Prepare for the next page. Make sure we haven't hit the end.
            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }

public static void DisposePrint()
        {
            if (m_streams != null)
            {
                foreach (Stream stream in m_streams)
                    stream.Close();
                m_streams = null;
            }
        }