Re: passing this object

I would like to pass "this" object to a constructor of socket class -
Sock which extends CSocketComm.

Once the socket class processed the data, the socket class use the
reference of CVirtualScreen (this object) - screen.setMessage function
to pass back the message to CVirtualScreen.

Is the following a correct syntax of implementing it?

should I involve reference / pointer in this case?

Please advice the incorrect area of the following code.

===================
class CVirtualScreen
{
public:
        CVirtualScreen();
        ~CVirtualScreen();
        Sock *sock;}

===================
CVirtualScreen::CVirtualScreen()
{
        // QUESTION ///////////////////////////
        // IS IT CORRECT WAY OF PASSING
        // THIS OBJECT TO SOCKET CLASS??
        // SHOULD I USE & REFERENCE??
        // SHOULD I USE POINTER??
        sock = new Sock(this);

}

// function must take std::string as parameter
CVirtualScreen::setMessage( std::string message )
{
        //setMessage to queue}

===================
class Sock : public CSocketComm
{
public:
Sock(CVirtualScreen screen);

~Sock();

// QUESTION ///////////////////////////
// DO I DECLARE REFERENCE TO CVirtuaqlScreen LIKE THIS WAY??
CVirtuaqlScreen screen;

virtual void OnDataReceived(const LPBYTE lpBuffer, DWORD dwCount);
bool StartServer();

};

===================
Sock::Sock(CVirtualScreen screen)
{
        // QUESTION ///////////////////////////
        // CAN I SET REFERENCE TO CVirtualScreen LIKE THIS??
        // SHOULD I USE POINTER??
        screenObject = screen
        StartServer();}

Sock::~Sock()
{
        StopComm();}

void Sock::OnDataReceived(const LPBYTE lpBuffer, DWORD dwCount)
{
        // do some stuff and output the std::string object
        std::string message = ... etc
        // QUESTION ///////////////////////////
        // ONCE SOCKET PROCESSED THE MESSAGE AND EXTRACT THE DATA
        // SOCKET WILL PASS THE MESSAGE BACK TO CVirtualScreen TO
        // INSERT MESSAGE INTO A MESSAGE QUEUE
        // IS THE FOLLOWING COORECT SYNTAX TO PASS MESSAGE BACK TO
        // CVirtualScreen CLASS??
        screen.setMessage ( message );

}