🚀 go-pugleaf

I successed webbrowser coustomization partly..

I implemeted below classes
    (1) class myIOleClientSite :public IOleClientSite // <--- work good
    (2) class myIDocHostShowUI :public IDocHostShowUI  // <--- work good
    (3) class myIDocHostUIHandler :public IDocHostUIHandler // <--- work
good
    (4) class myIDispatch :public IDispatch // <--- NOT WORK!!!!

and below is a part of myIOleClientSite implemetation
    class myIOleClientSite :public IOleClientSite
    {
        .....
        virtual HRESULT STDMETHODCALLTYPE QueryInterface( REFIID iid, void
** ppvObject )
        {
            if (iid == IID_IUnknown) *ppvObject = this->pmyIDispatch;
            else if (iid == IID_IDispatch) *ppvObject = this->pmyIDispatch;
            else if (iid == IID_IOleClientSite) *ppvObject =
(IOleClientSite*)this;
            else if (iid == IID_IDocHostUIHandler) *ppvObject =
this->pmyIDocHostUIHandler;
            else if (iid == IID_IDocHostShowUI) *ppvObject =
this->pmyIDocHostShowUI;
            else return E_NOINTERFACE;
            return S_OK;
        }
        .....
    };

where i mistake...??


below is a part of myIDispatch implemetation
    class myIDispatch :public IDispatch
    {
        .....
        virtual HRESULT STDMETHODCALLTYPE Invoke ( DISPID dispidMember,
                      REFIID riid,
                      LCID lcid,
                      WORD wFlags,
                      DISPPARAMS* pDispParams,
                      VARIANT* pvarResult,
                      EXCEPINFO* pExcepInfo,
                      UINT* puArgErr )
        {
            ShowMessage(dispidMember); // <--  it display just two
messages -5501, -5502

            switch (dispidMember)
            {
                case DISPID_AMBIENT_DLCONTROL:
                {
                    ShowMessage("DISPID_AMBIENT_DLCONTROL"); // <-- never
displayed
                    pvarResult->vt = VT_I4;
                    pvarResult->lVal = DLCTL_VIDEOS | DLCTL_NO_SCRIPTS;
                    //pvarResult->lVal = DLCTL_DLIMAGES | DLCTL_VIDEOS |
DLCTL_NO_SCRIPTS;
                }
                break;

                case DISPID_NEWWINDOW2:
                {
                    ShowMessage("DISPID_NEWWINDOW2"); // <-- never displayed
                }
                break;

                case DISPID_BEFORENAVIGATE2:
                {
                    ShowMessage("DISPID_BEFORENAVIGATE2"); // <-- never
displayed
                }
                break;

                default:
                return DISP_E_MEMBERNOTFOUND;
            }
            return E_NOTIMPL;//S_OK;
        }
        .....
    };

I want customize webbrowser's download and execution.. how to do it??
plz help me..