} FS_FILTER_CALLBACK_DATA, *PFS_FILTER_CALLBACK_DATA;
typedef NTSTATUS
-(*PFS_FILTER_CALLBACK) (
+(NTAPI *PFS_FILTER_CALLBACK) (
_In_ PFS_FILTER_CALLBACK_DATA Data,
_Out_ PVOID *CompletionContext);
typedef VOID
-(*PFS_FILTER_COMPLETION_CALLBACK) (
+(NTAPI *PFS_FILTER_COMPLETION_CALLBACK) (
_In_ PFS_FILTER_CALLBACK_DATA Data,
_In_ NTSTATUS OperationStatus,
_In_ PVOID CompletionContext);