en:docs:dos:api:int21:24

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=24H

Version

1 and higher

Brief

SET RANDOM RECORD NUMBER FOR FCB

Family API

Input

      AH = 24h
      DS:DX -> opened FCB (see #01345)

Return

none

Notes

computes the random record number corresponding to the current record number and record size, then stores the result in the FCB

normally used when switching from sequential to random access

not supported by MS Windows 3.0 DOSX.EXE DOS extender

See also

AH=21h,AH=27h,AH=42h

Note

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