This structure is filled out by a call to GetRtInterruptInfo and returns information about the interrupt, including the handle of the thread associated with the interrupt level specified in the call.
typedef struct tagInterruptInfo {
DWORD dwIrq;
WORD wVector;
WORD wIntThread;
DWORD reserved[2];
} INTERRUPTINFO, *LPINTERRUPTINFO;
dwIrq
wVector
wIntThread
reserved