Compatibility: 3.3+
Expects: AX    440cH
BX    file handle  (device or disk file)
CL    6BH
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 a buffer to hold an IoctlCpListRec structure
Returns: AX    error code  if CF is set to CY
DS:DX buffer is filled with IoctlCpListRec data (if no error)
Info: Obtains the list of currently-prepared code pages for the
specified device.

Code pages in this list may be activated via fn 440CH 4aH.

Notes:   See fn 440CH 4cH and National Language Support for related

  Use fn 440CH 6aH to obtain the ID of the current active code
page for a device.

See Also: Fn 44H (IOCTL)
Fn 440cH (generic IOCTL for character devices)
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DOS Fn 440cH CL=6BH: IOCTL Query Code Page List