int haid, target, lun;
DWORD dwResult;

haid = atoi(argv[1]);

if (argc < 3) target = 0;
   else target = atoi(argv[2]);

if (argc < 4) lun = 0;
   else lun = atoi(argv[3]);

dwResult = GetASPI32SupportInfo();
if (BYTE(dwResult >>8) != SS_COMP)
   {
    printf("Error: SCSI %Xh. Initializaton failed.\n", BYTE(dwResult >> 8));
    return 1;
    }

HANDLE hEvent;

hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (hEvent == NULL)
   {
    printf("Error: System %Xh. Can not create event.\n", GetLastError());
    return 2;
    }

SRB_ExecSCSICmd esc;
BYTE buf[8];

ZeroMemory(buf, 8);

ZeroMemory(&esc, sizeof(SRB_ExecSCSICmd));
esc.SRB_Cmd  = SC_EXEC_SCSI_CMD;
esc.SRB_HaId = haid;
esc.SRB_Flags = SRB_EVENT_NOTIFY | SRB_DIR_IN;
esc.SRB_Target = target;
esc.SRB_Lun = lun;
esc.SRB_SenseLen = SENSE_LEN;
esc.SRB_BufLen = 0x8;
esc.SRB_BufPointer = buf;
esc.SRB_CDBLen = 10;
esc.SRB_PostProc = hEvent;
esc.CDBByte[0]  = 0x4A; // SCSI Command (Get Event/Status Notification)
esc.CDBByte[1]  = 0x1;  // IMMED is set
esc.CDBByte[2]  = 0x0;
esc.CDBByte[3]  = 0x0;
esc.CDBByte[4]  = 0x10; // Notification Class (Media Status Class Event)
esc.CDBByte[5]  = 0x0;
esc.CDBByte[6]  = 0x0;
esc.CDBByte[7]  = 0x0;  // Allocation Lenght MSB
esc.CDBByte[8]  = 0x8;  // Allocation Length LSB
esc.CDBByte[9]  = 0x0;  

dwResult = SendASPI32Command((LPSRB)&esc);
if (dwResult == SS_PENDING)
   {
    dwResult = WaitForSingleObject(hEvent, INFINITE);
    if (dwResult == WAIT_FAILED)
       {
        dwResult = GetLastError();
        CloseHandle(hEvent);
        printf("Error: System %Xh. Waiting failed.\n", dwResult);
        return 3;
        }
    dwResult = esc.SRB_Status;
    }

CloseHandle(hEvent);

if (dwResult != SS_COMP)
   {
    printf("Error: SCSI %Xh. SCSI command failed.\n", esc.SRB_Status);
    return 4;
    }

if ((buf[2] & 0x7) == 4) printf("Result: door %s\n", (buf[5] & 0x1) ? "open" : "closed");
   else printf("Result: door status unknown.\n");