Docs » Autodocs » dos.library » DupLockFromFH
DupLockFromFH -- Gets a lock on an open file (V36)
lock = DupLockFromFH(fh)
D0 D1
BPTR DupLockFromFH(BPTR)
Obtain a lock on the object associated with fh. Only works if the
file was opened using a non-exclusive mode. Other restrictions may be
placed on success by the filesystem.
fh - Opened file for which to obtain the lock
lock - Obtained lock or NULL for failure
DupLock(), Lock(), UnLock()
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