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True if the file was locked, False otherwise.
Identifier of the file to lock, defined by fOpen or fCreate.
Position of the first byte to lock (0 corresponds to the first byte of the file).
Number of bytes to lock in the file. Constant: fLockEmptyFilefLock has the same behavior, no matter whether the file is empty or not (see the notes).
The lock was not performed
Locking a file
Position in the file
Operating mode in Windows Vista (and later)
Last update: 05/01/2020
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