Table of Contents
Note: This API call is for DOS and Win16 personality only. Use Family API for portability.
Int 21H, AH=44H, AL=0EH
Version
3.2 and higher
Brief
GET LOGICAL DRIVE MAP
Family API
Input
AX = 440Eh BL = drive number (00h=default,01h=A:,etc)
Return
CF set on error
AX = error code (01h,0Fh) (see #01680 at AH=59h/BX=0000h)
CF clear if successful
AL = 00h block device has only one logical drive assigned
1..26 the last letter used to reference the drive (1=A:,etc)
Macro
Notes
DR DOS 3.41-5.0 DRIVER.SYS does not support drive mapping and thus always returns AL=00h; Windows NT 4.0 also always returns AL=00h
in addition to the normal operation, if Stacker is installed, this call also sets the volume number at offset 58h in the Stacker device driver (DR DOS 3.41-5.0 only; use AX=4408h otherwise) (see AX=4404h“Stacker”,INT 25/AX=CDCDh)
See also
Note
Text based on Ralf Brown Interrupt List Release 61
| osFree Macro Library | |
|---|---|
| Video I/O | @SetMode @SetCurSz @SetCurPos @GetCur @SetPage @ScrollUp @ScrollDn @Scroll @GetChAtr @PutChAtr @PutCh @SetPalet @SetColor @SetDot @GetDot @WrtTTY @VideoState @GetMode @GetDisplay @GetVideoState @GetEGAInfo @Cls |
| Hardware info | @Equipment @MemSize |
| Serial I/O | @AuxInit @AuxSendChar @AuxRecieveChar @AuxStatus |
| Tape I/O | @TapeOn @TapeOff @TapeRead @TapeWrite |
| Keyboard I/O | @KbdStatus @CharIn @CharPeek |
| Printer I/O | @PrnPrint @PrnInit @PrnStatus |
| Disk I/O | @DskReset @DskStatus @DskRead @DskWrite @DskVerify @DskFormat |
| Date and Time | @SetTime @GetTime |
| Mouse | @MouInit @MouShowPointer @MouStatus @MouSetPos @MouSetMickey @MouRegion |
| Memory manager | @ModBlok SET_BLOCK |