Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Summary►  ◄Notes►  ◄Back►
──────────────────────────────────────────────────────────────────────────────
 
  Description:  IOCTL: Get Logical Drive Map     DOS 3.2 Only
 
  Returns the logical drive code that was most recently used to access the
  specified block device.
 
  Input                         Output
  ══════════════════            ══════════════════════════════════════════
  AH=44H                        If function successful
  AL=0EH                        Carry flag=clear
  BL=drive code                 AL=mapping code
     (0=default,                   00H      if only one logical drive code
     1=A, 2=B, etc.)                        assigned to the block device
                                   01H-1AH  logical drive code (1=A, 2=B,
                                             etc.)
                                            mapped to the block device
                                If function unsuccessful
                                Carry flag=set
                                AX=error code
                                    -♦-