Int 2F Fn 4309  U - Himem.sys V3.09+ - Get XMS Handle Table                [m]

   AX = 4309h

Return: AL = 43h if function supported
       ES:BX -> XMS handle table (see below)

Note:  HIMEM.SYS v3.09 is part of MS-DOS 6.0.

See Also: AX=4308h

Format of XMS handle table:
Offset Size    Description
 00h   BYTE    ??? (01h in HIMEM.SYS v3.09)
 01h   BYTE    size of one handle??? (0Ah in HIMEM.SYS v3.09)
 02h   WORD    value of /numhandles= parameter (default = 20h)
 04h   DWORD   pointer to XMS handle array (see below)

Format of XMS handle [array]:
Offset Size    Description
 00h   BYTE    flag 01h=free, 02h=used, 04h=unused
 01h   BYTE    lock count (00h=unlocked)
 02h   DWORD   address of XMS block in KB (shift left by 10 for abs. address)
 06h   DWORD   size of XMS block in KB