Printing a Text File (Visual C#)

System.IO.StreamReader fileToPrint;
System.Drawing.Font printFont;
private void printButton_Click(object sender, EventArgs e)
{
   string printPath = System.Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
   fileToPrint = new System.IO.StreamReader(printPath + @"\myFile.txt");
   printFont = new System.Drawing.Font("Arial", 10);
   printDocument1.Print();
   fileToPrint.Close();
}

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
   float yPos = 0f;
   int count = 0;
   float leftMargin = e.MarginBounds.Left;
   float topMargin = e.MarginBounds.Top;
   string line = null;
   float linesPerPage = e.MarginBounds.Height/printFont.GetHeight(e.Graphics);
   while (count < linesPerPage)
   {
      line = fileToPrint.ReadLine();
      if (line == null)
      {
         break;
      }
      yPos = topMargin + count * printFont.GetHeight(e.Graphics);
      e.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin, yPos, new StringFormat());
      count++;
   }
   if (line != null)
   {
      e.HasMorePages = true;
   }
}