Connection fail signal to dialog in vc++ mfc

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MFC

Hey guys,
I have a project which connects the TVs(with socket connection) to a computer and saves the log files. I achieve the connection by multithreading but I want to see whether the connection is established or not in the main dialog page that i built in VC++ MFC. Here are my codes:
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01	void CDilaraDlg::OnBnClickedConnect()
02	{
03	    int Selected = 0; //number of the servers selected from the list
04	     
05	    for(int i=0; i< m_ctlServerList.GetCount();i++)
06	    {
07	        if(m_ctlServerList.GetCheck(i) == 1 )
08	        {
09	            Selected++;
10	        }
11	    }
12	     
13	    //no line is selected:
14	    if(Selected == 0)
15	        AfxMessageBox(L"No Server is Selected!");
16	 
17	 
18	    CString *diziPtr= new CString[Selected];
19	    char str[2];
20	    CString svar,connection;
21	    for(int i=0; i< m_ctlServerList.GetCount();i++)
22	    {
23	        if(m_ctlServerList.GetCheck(i) == 1 )
24	        {
25	            _itoa_s(i,str,10);
26	            svar = str;
27	            *diziPtr = lines[i]+_T(":")+svar+_T("-")+m_savepath;
28	            ++diziPtr; 
29	        }
30	    }
31	 
32	    m_fails.ResetContent();
33	    m_success.ResetContent();
34	 
35	    for(int i=0;i<Selected;i++){ 
36	        --diziPtr; 
37	        Client_Thread=CreateThread(NULL,0,ClientThread,(void *)diziPtr,0,&Client_ThreadID);
38	    //HERE I WANT TO DO SOME OPERATIONS FOR m_fails.AddString(..) or m_success.AddString(..)
39	    }
40	   
41	}

m_fails and m_success stand for the control variables of two list boxes that i want to write down the succeed and failed connections.
For the multithreading :
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01	DWORD WINAPI ClientThread(void * num)
02	{  
03	 
04	    signal( SIGINT, &signal_handler );
05	    signal( SIGTERM,&signal_handler ); 
06	    signal( SIGABRT,&signal_handler ); 
07	 
08	    CString ipport= *(CString * ) num; 
09	    CString ipAddress,savepath;
10	    CString ports,socknums;
11	    int port,socknum;
12	     
13	    AfxExtractSubString(ipAddress, ipport, 0, ':'); //first substr upto : is the ip
14	    AfxExtractSubString(ports, ipport, 1, ':');//second substr after : is the port
15	 
16	    port = _wtoi(ports);
17	 
18	    AfxExtractSubString(socknums, ipport, 2, ':');//third substr after : is the threadno
19	 
20	    AfxExtractSubString(savepath, ipport, 1, '-');//second substr after , is the savepath
21	 
22	 
23	    socknum = _wtoi(socknums);
24	    CStringA ip(ipAddress);
25	    Socket sockClient(socknum);
26	 
27	    CString thno,conn;
28	    thno.Format(_T("%d"), socknum);
29	 
30	    //creating the ip_port.txt file and write the time in it
31	    sockClient.timefile(ipAddress,ports,savepath);
32	 
33	    if(sockClient.ConnectToServer(ip, port,socknum)==0)
34	    return -1;
35	 
36	    sockClient.RecvData(ipAddress,ports,socknum,savepath);
37	 
38	    return 0;
39	    
40	}

in the ConnectToServer function of the Socket, it returns 0 if the connection is not achieved and 1 otherwise.
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01	int Socket::ConnectToServer( const char *ipAddress, int port,int i)
02	{  
03	    myAddress.sin_family = AF_INET;                                  
04	    myAddress.sin_addr.s_addr = inet_addr( ipAddress );               
05	    myAddress.sin_port = htons( port );                               
06	     
07	    if (connect( mySocket[i], (SOCKADDR*) &myAddress, sizeof( myAddress ) )==SOCKET_ERROR )
08	    {
09	        CString msg = _T("ClientSocket: Failed to connect: Error Value: ");
10	        CString error;
11	        int a = WSAGetLastError();
12	        error.Format(_T("%d"),a);
13	        msg+=error;
14	        AfxMessageBox(msg);
15	        system("pause");       
16	        return 0; //connection fails
17	    }
18	    return 1;
19	}

How to get 0 or 1 return values in my dialog.cpp to do the listbox operations? or any other suggestions??
Thanks