FLT_RELATED_CONTEXTS_EX - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// fltkernel.h
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;
View the official Windows Driver Kit DDI referenceNo description available.
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.
VolumeContextOpaque pointer to the minifilter's context for the volume that the Volume member of the FLT_RELATED_OBJECTS structure points to.
InstanceContextOpaque pointer to the minifilter driver's context for the instance that the Instance member of the FLT_RELATED_OBJECTS structure points to.
FileContextAn 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.
StreamContextOpaque pointer to the minifilter's stream context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
StreamHandleContextOpaque pointer to the minifilter's stream handle context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
TransactionContextAn opaque pointer to the minifilter's transaction context for the transaction that the Transaction member of the FLT_RELATED_OBJECTS structure points to.
SectionContextAn opaque pointer to the minifilter's section context for the stream handle that the FileObject member of the FLT_RELATED_OBJECTS structure points to.
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.