FLT_PARAMETERS for IRP_MJ_QUERY_INFORMATION union
Union component used when the MajorFunction field of the FLT_IO_PARAMETER_BLOCK structure for the operation is IRP_MJ_QUERY_INFORMATION.
Syntax
typedef union _FLT_PARAMETERS {
... ;
struct {
ULONG Length;
FILE_INFORMATION_CLASS POINTER_ALIGNMENT FileInformationClass;
PVOID InfoBuffer;
} QueryFileInformation;
... ;
} FLT_PARAMETERS, *PFLT_PARAMETERS;
Members
QueryFileInformation: Structure containing the following members.
Length: Length, in bytes, of the buffer at InfoBuffer.
FileInformationClass: Type of file information to be returned. One of the following:
Value Meaning FileAllInformation Return a FILE_ALL_INFORMATION structure for the file. FileAttributeTagInformation Return a FILE_ATTRIBUTE_TAG_INFORMATION structure for the file. FileBasicInformation Return a FILE_BASIC_INFORMATION structure for the file. FileCompressionInformation Return a FILE_COMPRESSION_INFORMATION structure for the file. FileEaInformation Return a FILE_EA_INFORMATION structure for the file. FileInternalInformation Return a FILE_INTERNAL_INFORMATION structure for the file. FileMoveClusterInformation Return a FILE_MOVE_CLUSTER_INFORMATION structure for the file. FileNameInformation Return a FILE_NAME_INFORMATION structure for the file. FileNetworkOpenInformation Return a single FILE_NETWORK_OPEN_INFORMATION structure for the file FilePositionInformation Return a single FILE_POSITION_INFORMATION structure for the file. FileStandardInformation Return a single FILE_STANDARD_INFORMATION structure for the file. FileStreamInformation Return a single FILE_STREAM_INFORMATION structure for the file. InfoBuffer: Pointer to the output buffer where the file information is to be returned.
Remarks
The FLT_PARAMETERS structure for IRP_MJ_QUERY_INFORMATION operations contains the parameters for a query-information operation represented by a callback data (FLT_CALLBACK_DATA) structure. It is contained in an FLT_IO_PARAMETER_BLOCK structure.
IRP_MJ_QUERY_INFORMATION can be an IRP-based operation or a fast I/O operation.
Requirements
| Requirement type | Requirement |
|---|---|
| Header | Fltkernel.h (include Fltkernel.h) |
See also
FILE_ATTRIBUTE_TAG_INFORMATION
FILE_POSITION_INFORMATION FILE_STANDARD_INFORMATION