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Union component used when the MajorFunction field of the FLT_IO_PARAMETER_BLOCK structure for the operation is IRP_MJ_SET_VOLUME_INFORMATION.
Syntax
typedef union _FLT_PARAMETERS {
... ;
struct {
ULONG Length;
FS_INFORMATION_CLASS POINTER_ALIGNMENT FsInformationClass;
PVOID VolumeBuffer;
} SetVolumeInformation;
... ;
} FLT_PARAMETERS, *PFLT_PARAMETERS;
Members
SetVolumeInformation: Structure containing the following members.
Length: Length, in bytes, of the buffer at VolumeBuffer.
FsInformationClass: Type of information to be set for the volume. One of the following:
| Value | Meaning |
|---|---|
| FileFsControlInformation | Set FILE_FS_CONTROL_INFORMATION for the volume. |
| FileFsLabelInformation | Set FILE_FS_LABEL_INFORMATION for the volume. |
| FileFsObjectIdInformation | Set FILE_FS_OBJECTID_INFORMATION for the volume. |
- VolumeBuffer: Pointer to the input buffer that contains the values of the volume information to be set.
Remarks
The FLT_PARAMETERS structure for IRP_MJ_SET_VOLUME_INFORMATION operations contains the parameters for a set-volume-information operation represented by a callback data (FLT_CALLBACK_DATA) structure. It is contained in an FLT_IO_PARAMETER_BLOCK structure.
IRP_MJ_SET_VOLUME_INFORMATION is an IRP-based operation.
Requirements
| Requirement type | Requirement |
|---|---|
| Header | Fltkernel.h (include Fltkernel.h) |