一段蓝牙通讯代码（似乎有点问题）

/*+++++++++++Startup WSA+++++++++++++++++*/
WORD wVersionRequested;
WSADATA wsaData;
wVersionRequested = MAKEWORD( 2, 2 );
WSAStartup( wVersionRequested, &wsaData );

/*+++++++++++++Search for my device++++++++++++++++*/
INT iResult = 0;
LPWSAQUERYSET pwsaResults;
DWORD dwSize = 0;
WSAQUERYSET wsaq;
HANDLE hLookup = 0;
memset (&wsaq, 0, sizeof(wsaq));
wsaq.dwSize = sizeof(wsaq);
wsaq.dwNameSpace = NS_BTH;
wsaq.lpcsaBuffer = NULL;

WSALookupServiceBegin(&wsaq, LUP_CONTAINERS, &hLookup);

union {
CHAR buf[5000];
SOCKADDR_BTH __unused;
};
pwsaResults = (LPWSAQUERYSET) buf;
dwSize = sizeof(buf);
memset(pwsaResults,0,sizeof(WSAQUERYSET)<wbr></wbr>);
pwsaResults->dwSize = sizeof(WSAQUERYSET);
pwsaResults->dwNameSpace = NS_BTH;
pwsaResults->lpBlob = NULL;

WSALookupServiceNext (hLookup, LUP_RETURN_NAME | LUP_RETURN_ADDR, &dwSize, pwsaResults);
// Real device name is found ... pwsaResults->lpszServiceInstanceName;

/*+++++++++Now trying to register the virtual COM Port+++++++++++++++*/
PORTEMUPortParams pp;
memset (&pp, 0, sizeof(pp));
pp.channel = 0;
pp.flocal = false;
pp.device = reinterpret_cast<_SOCKADDR_BTH*>(pwsaRes<wbr></wbr>ults->lpcs<wbr></wbr>aBuffer->L<wbr></wbr>ocalAddr.l<wbr></wbr>pSockaddr)<wbr></wbr>->btAddr;
//the detected BT_ADDR
memcpy(&pp.uuidService, &CLSID_NULL, sizeof(GUID));
pp.uiportflags = RFCOMM_PORT_FLAGS_REMOTE_DCB;
int port = 4; //or anything else like 1..4,5 or 6..9 | Limit is 9 i think
HANDLE bth = RegisterDevice (L"COM", port, L"btd.dll", (DWORD)&pp));

/*++++++++the result+++++++++++++++++++*/
//bth == 0
//GetLastError () == ERROR_DEVICE_IN_USE :(