FltFreeFileLock function (fltkernel.h)

Article
02/22/2024

The FltFreeFileLock routine uninitializes and frees an initialized FILE_LOCK structure.

Syntax

VOID FLTAPI FltFreeFileLock(
  [in] PFILE_LOCK FileLock
);

Parameters

[in] FileLock

Pointer to the FILE_LOCK structure. This structure must have been initialized by a previous call to FltAllocateFileLock or FltInitializeFileLock.

Return value

None

Remarks

The FILE_LOCK structure is opaque: that is, its members are reserved for system use.

To allocate and initialize a new file lock structure, call FltAllocateFileLock.

It is a programming error to call FltFreeFileLock for a FILE_LOCK structure that has already been uninitialized by a call to FltUninitializeFileLock.

Requirements

Requirement	Value
Minimum supported client	Windows XP SP2
Minimum supported server	Windows Server 2003 SP1
Target Platform	Universal
Header	fltkernel.h (include Fltkernel.h)
Library	FltMgr.lib
IRQL	<= APC_LEVEL