FsRtlInitializeExtraCreateParameter function (ntifs.h)

The FsRtlInitializeExtraCreateParameter routine initializes an extra create parameter (ECP) context structure.

Syntax

VOID FsRtlInitializeExtraCreateParameter(
 [in] PECP_HEADER Ecp,
 [in] ULONG EcpFlags,
 [in, optional] PFSRTL_EXTRA_CREATE_PARAMETER_CLEANUP_CALLBACK CleanupCallback,
 [in] ULONG TotalSize,
 [in] LPCGUID EcpType,
 [in, optional] PVOID ListAllocatedFrom
);

Parameters

[in] Ecp

Pointer to the ECP context structure to initialize.

[in] EcpFlags

Defines initialization options. Currently, no flags are defined.

[in, optional] CleanupCallback

Optional pointer to a filter-defined cleanup callback routine of type PFSRTL_EXTRA_CREATE_PARAMETER_CLEANUP_CALLBACK. The cleanup callback routine is called when the ECP context structure (created by the FsRtlAllocateExtraCreateParameter routine) is deleted. Set this parameter to NULL if a cleanup callback routine is not applicable.

[in] TotalSize

The size, in bytes, of the ECP context structure to initialize.

[in] EcpType

Pointer to a GUID that indicates the type of ECP for which the context structure will be initialized. For more information about ECPs, see Using Extra Create Parameters with an IRP_MJ_CREATE Operation.

[in, optional] ListAllocatedFrom

Optional pointer to the list from which the ECP context structure is allocated.

Return value

None

Requirements

See also

FsRtlAllocateExtraCreateParameter

PFSRTL_EXTRA_CREATE_PARAMETER_CLEANUP_CALLBACK