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FltParseFileNameInformation parses the contents of a FLT_FILE_NAME_INFORMATION structure.
Syntax
NTSTATUS FLTAPI FltParseFileNameInformation(
[in, out] PFLT_FILE_NAME_INFORMATION FileNameInformation
);
Parameters
[in, out] FileNameInformation
Pointer to an FLT_FILE_NAME_INFORMATION structure returned by a previous call to FltGetDestinationFileNameInformation, FltGetFileNameInformation, FltGetFileNameInformationUnsafe, or FltGetTunneledName. This parameter is required and cannot be NULL.
Return value
FltParseFileNameInformation returns STATUS_SUCCESS or an appropriate NTSTATUS error code.
Remarks
FltParseFileNameInformation parses the Name member of a FLT_FILE_NAME_INFORMATION structure and uses the results to set the values of the Volume, Share, Extension, Stream, FinalComponent, ParentDir, and NamesParsed members of this structure. For more information, see FLT_FILE_NAME_INFORMATION.
The following is an example of a normalized name for a remote file:
\Device\LanManRedirector\MyServer\MyShare\Documents and Settings\MyUser\My Documents\Test Results.txt:stream1
FltParseFileNameInformation parses this normalized name as follows:
Volume: "\Device\LanManRedirector"
Share: "\MyServer\MyShare"
Extension: "txt"
Stream: ":stream1"
FinalComponent: "Test Results.txt:stream1"
ParentDir: "\Documents and Settings\MyUser\My Documents"
The following is an example of an opened name for a local file:
\Device\HarddiskVolume1\Docume~1\MyUser\My Documents\TestRe~1.txt:stream1:$DATA
FltParseFileNameInformation parses this opened name as follows:
Volume: "\Device\HarddiskVolume1"
Share: NULL
Extension: "txt"
Stream: ":stream1:$DATA"
FinalComponent: "TestRe~1.txt:stream1:$DATA"
ParentDir: "\Docume~1\MyUser\My Documents"
The following is an example of a short name for a file:
TestRe~1.txt
FltParseFileNameInformation parses this short name as follows:
Volume: NULL
Share: NULL
Extension: "txt"
Stream: NULL
FinalComponent: "TestRe~1.txt"
ParentDir: NULL
The caller must not modify the contents of the FileNameInformation structure, because the Filter Manager caches this structure so that all minifilter drivers can use it.
Note If the caller is trying to parse a string, not an FLT_FILE_NAME_INFORMATION structure, use the FltParseFileName routine instead of FltParseFileNameInformation.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows XP SP2 and later versions of the Windows operating system. |
| Target Platform | Universal |
| Header | fltkernel.h (include Fltkernel.h) |
| Library | FltMgr.lib |
| DLL | Fltmgr.sys |
| IRQL | <= APC_LEVEL |
See also
FltGetDestinationFileNameInformation