[ uuid(56BF67C0-6503-1068-BF67-00DD010FBF25),
  version(1.0),
  pointer_default(unique)
]
interface xmit
{

typedef struct _DOUBLE_LINK_LIST {
    short sNumber;
    struct _DOUBLE_LINK_LIST * pNext;
    struct _DOUBLE_LINK_LIST * pPrevious;
} DOUBLE_LINK_LIST;

typedef struct _DOUBLE_XMIT_TYPE {
    short sSize;
    [size_is(sSize)] short asNumber[];
} DOUBLE_XMIT_TYPE;

/* transmit a double-linked list as an array */
typedef [transmit_as(DOUBLE_XMIT_TYPE)] DOUBLE_LINK_LIST DOUBLE_LINK_TYPE;


void ModifyListProc([in, out] DOUBLE_LINK_TYPE *pHead);

void Shutdown(void);

}