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====== Int 21H, AH=10H ======

===== Version =====

1 and higher

===== Brief =====

CLOSE FILE USING FCB

===== Family API =====

[[en:docs:fapi:DosClose]]

===== Input =====

        AH = 10h
        DS:DX -> File Control Block (see #01345)

===== Return =====

AL = status       00h successful       FFh failed

===== Notes =====

 a successful close forces all disk buffers used by the file to be written and the directory entry to be updated

 not supported by MS Windows 3.0 DOSX.EXE DOS extender
        
===== See also =====

AH=[[en:docs:dos:api:int21:0f|0Fh]],AH=[[en:docs:dos:api:int21:16|16h]],AH=[[en:docs:dos:api:int21:3e|3Eh]]

===== Note =====

Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]]

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