C++: Get MAC address of network adapters on Vista?

void getdMacAddresses(std::vector<std::string> &vMacAddresses;)
{
    vMacAddresses.clear();
    IP_ADAPTER_INFO AdapterInfo[32];       // Allocate information for up to 32 NICs
    DWORD dwBufLen = sizeof(AdapterInfo);  // Save memory size of buffer
    DWORD dwStatus = GetAdaptersInfo(      // Call GetAdapterInfo
    AdapterInfo,                 // [out] buffer to receive data
    &dwBufLen);                  // [in] size of receive data buffer

    //No network card? Other error?
    if(dwStatus != ERROR_SUCCESS)
    	return;

    PIP_ADAPTER_INFO pAdapterInfo = AdapterInfo;
    char szBuffer[512];
    while(pAdapterInfo)
    {
    	if(pAdapterInfo->Type == MIB_IF_TYPE_ETHERNET)
    	{
    		sprintf_s(szBuffer, sizeof(szBuffer), "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x"
    			, pAdapterInfo->Address[0]
    			, pAdapterInfo->Address[1]
    			, pAdapterInfo->Address[2]
    			, pAdapterInfo->Address[3]
    			, pAdapterInfo->Address[4]
    			, pAdapterInfo->Address[5]
    			);
    		vMacAddresses.push_back(szBuffer);
    	}
    	pAdapterInfo = pAdapterInfo->Next;

    }
}