SL_LEFTMARG()

  Short:
  ------
  SL_LEFTMARG() Sets the left margin to the left edge of the
  specified column

  Returns:
  --------
  cCode => control string to send to the printer

  Syntax:
  -------
  SL_LEFTMARG(nColumn)

  Description:
  ------------
  Sets the left margin to the left edge of the
  specified column in <nColumn>.

  Examples:
  ---------
   ?SL_LEFTMARG(3) // sets left margin to column3

  Notes:
  -------
  Does not send anything to the printer - instead
  returns a control string that you send to the printer. String can be
  sent with ? or ?? or  QOUT() or QQOUT().

  For HP and compatible(PCL) Laserjet printers.

  Source:
  -------
  S_HPLAS.PRG