FltClose function (fltkernel.h)

FltClose closes a file handle that was opened by FltCreateFile or FltCreateFileEx.

Syntax

NTSTATUS FLTAPI FltClose(
  [in] HANDLE FileHandle
);

[in] FileHandle

Handle created by a successful call to FltCreateFile or FltCreateFileEx.

FltClose returns STATUS_SUCCESS or an appropriate NTSTATUS value such as the following:

Return code	Description
STATUS_INVALID_HANDLE	FileHandle was not a valid file handle. This is an error code.

FltClose is only for closing file handles opened by FltCreateFile or FltCreateFileEx. It should not be used to close arbitrary handles.

Requirement	Value
Target Platform	Universal
Header	fltkernel.h (include Fltkernel.h)
Library	FltMgr.lib
DLL	Fltmgr.sys
IRQL	PASSIVE_LEVEL