en:docs:dos:api:int21:19

Note: This API call is for DOS and Win16 personality only. Use Family API for portability.

2018/09/07 05:04 · prokushev · 0 Comments

Int 21H, AH=19H

Version

1 and higher

Brief

GET CURRENT DEFAULT DRIVE

Family API

Input

      AH = 19h

Return

AL = drive (00h = A:, 01h = B:, etc)

Notes

Novell NetWare uses the fact that DOS 2.x COMMAND.COM issues this call from a particular location every time it starts a command to determine when to issue an automatic EOJ

See also

AH=0Eh,AH=47h,AH=BBh

Note

2018/09/04 17:23 · prokushev · 0 Comments