DOS Fn 440cH CL=4AH: IOCTL Select Code Page

                                                         Compatibility: 3.3+ 
 Expects: AX    440cH
          BX    file handle  (device or disk file)
          CL    4aH
          CH    device category: 00H=unknown
                                 01H=COMn (DOS 3.3+)
                                 03H=console (screen + keyboard) (DOS 3.3+)
                                 05H=parallel printer (DOS 3.2+)
          DS:DX addr of an IoctlCpIdRec that selects the code page
 Returns: AX    error code  if CF is set to CY
    Info: Selects a desired code page to be used by the specified device.
          The code page must by among those that have already been
          prepared; see 440cH 6bH (cp prepare) and 440cH 6bH (cp list).

See Also: Fn 44H (IOCTL)
          Fn 440cH (generic IOCTL for character devices)
          Fn 440cH 6aH (query current code page)
          Generic IOCTL Data Packets
          National Language Support
          DOS Functions