FLT_RELATED_CONTEXTS_EX structure (fltkernel.h)
The FLT_RELATED_CONTEXTS_EX structure contains a minifilter driver's contexts for the objects associated with an I/O operation. This structure extends the FLT_RELATED_CONTEXTS structure to include the section context.
Syntax
typedef struct _FLT_RELATED_CONTEXTS_EX {
PFLT_CONTEXT VolumeContext;
PFLT_CONTEXT InstanceContext;
PFLT_CONTEXT FileContext;
PFLT_CONTEXT StreamContext;
PFLT_CONTEXT StreamHandleContext;
PFLT_CONTEXT TransactionContext;
PFLT_CONTEXT SectionContext;
} FLT_RELATED_CONTEXTS_EX, *PFLT_RELATED_CONTEXTS_EX;
Members
VolumeContext
Opaque pointer to the minifilter's context for the volume that the Volume member of the FLT_RELATED_OBJECTS structure points to.
InstanceContext
Opaque pointer to the minifilter driver's context for the instance that the Instance member of the FLT_RELATED_OBJECTS structure points to.
FileContext
An opaque pointer to the minifilter driver's per-file context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
StreamContext
Opaque pointer to the minifilter's stream context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
StreamHandleContext
Opaque pointer to the minifilter's stream handle context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
TransactionContext
An opaque pointer to the minifilter's transaction context for the transaction that the Transaction member of the FLT_RELATED_OBJECTS structure points to.
SectionContext
An opaque pointer to the minifilter's section context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
Remarks
The FLT_RELATED_CONTEXTS_EX structure contains a minifilter driver's contexts for the objects associated with an I/O operation or an instance setup or teardown operation.
A minifilter driver uses the FLT_RELATED_CONTEXTS_EX structure to retrieve multiple contexts for a given operation. To do so, the minifilter driver allocates an empty FLT_RELATED_CONTEXTS_EX structure and passes a pointer to it as the Contexts parameter to FltGetContextsEx.
A minifilter can also use this structure to release multiple contexts for a given operation. To do so, the minifilter driver passes a pointer to FLT_RELATED_CONTEXTS_EX as the Contexts parameter to FltReleaseContextsEx.
For more information about using contexts, see the reference entry for FltAllocateContext.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 8. |
| Header | fltkernel.h (include Fltkernel.h) |