coding for print screen

int i = 0;
foreach (Screen a in Screen.AllScreens)
{
  Bitmap b = new Bitmap(a.WorkingArea.Width, a.WorkingArea.Height);
  Graphics g = Graphics.FromImage(b);
  g.CopyFromScreen(a.WorkingArea.Left, a.WorkingArea.Top, 0, 0, b.Size);
  g.Dispose();
  string location = "C:\\Temp\\" + i.ToString() + ".bmp";
  try
  {
    b.Save(location);
  }
  catch (System.Exception)
  {
    //Most probably a wrong path name or file sharing violation occured
  }
  finally
  {
    b.Dispose();
  }
  i++;
}