Calling C++ methods from javascript

Hi,

I've implemented a web browser using the activeX control.

In previous topic, I had a problem with handling keys events like tab,
delete,enter which were solved using IOleInPlaceActiveObject.

this was my previous post
http://groups.google.com/group/microsoft.public.platformsdk.com_ole/browse_thread/thread/25462b1798e61b62/5c13de4a638c3d61#5c13de4a638c3d61

Now, I need to call C++ methods using javascript window.external. I
have a class that inherits IDocHostUIHandlerDispatch, and i override
the methods GetIDsOfNames() and Invoke(), GetExternal().
i use the TranslateAccelerator() to handle events.

My problem is this:
I can't seem to make both things work together - the keys event and the

external call.
When I add the support for the IDocHostUIHandler, the keys events are
not invoked and vice versa.
Do i need to override the translateAccelerator method of this class?
How do i combine it in the main loop the reads/dispatches messages?

tnx a lot

here is some code:
In the code given bellow, i always get an exception in the
pIOIPAO->TranslateAccelerator(msg) call.

//////////////////////////////////////
//this is the initialization of the browser

void BrowserWindow::initBrowserWindow(){
        // window is HWND
        window = CreateWindow(windowClassName,
                          "Loading...",
                          WS_OVERLAPPEDWINDOW,
                          (GetSystemMetrics(SM_CXSCREEN)-400)/2,
                          (GetSystemMetrics(SM_CYSCREEN)-400)/2,
                          400,
                          400,
                          NULL,
                          NULL,
                          hInstance,
                          NULL);

        ShowWindow(window,SW_SHOW);

        RECT windowRect;
        GetClientRect(window, &windowRect) ;

        // axwin is CAxWindow
        axwin.Create(window, windowRect , "res://",
WS_CHILD|WS_VISIBLE|WS_HSCROLL|WS_VSCROLL,0,201) ;

        // unknownPointer is IUnknown*
        unknownPointer = NULL ;
        HRESULT hr = AtlAxGetControl(axwin.m_hWnd, &unknownPointer);

    // spBrowser is IWebBrowser2*
    // get an interface of the web browser control.
    unknownPointer->QueryInterface(IID_IWebBrowser2,
(void**)&spBrowser);
    spBrowser->put_Visible(VARIANT_TRUE);

        doc = NULL;// doc is IHTMLDocument2*
        dispatch = NULL;// dispatch is IDispatch*
        pIOIPAO = NULL;// pIOIPAO is IOleInPlaceActiveObject*

//THandler inherits IDocHostUIHandlerDispatch
handler = new THandler(this);
handler->AddRef();
axwin.SetExternalUIHandler(handler);

        // Create the event handler. TWatcher extends IDispatch
        watcher = new TWatcher(this) ;
        watcher->AddRef() ;
        AtlAdvise(spBrowser, watcher, DIID_DWebBrowserEvents2, &cookie)
;

}

//////////////////////////////////////
from WinMain():

......
MSG msg ;
HRESULT hr = S_FALSE;

while(GetMessage(&msg, NULL , NULL, NULL) != 0) {

  TranslateMessage(&msg);

        HWND parent = msg.hwnd ;

        // search up until the top is reached
        while(GetParent(parent)){
                parent = GetParent(parent) ;
        }

  // All the browser windows are held in a map, the key is the HWND
        BrowserWindow* bw = BrowserWindow::getByHwnd(parent);

        if (bw != NULL) {
                hr = bw->handleMessage(&msg);
        }

        // if S_OK was returned, the message was already handled.
        // this is to prevent the keys events to happen twice
        if (hr != S_OK) {
                DispatchMessage(&msg);
        }

}

.....
//////////////////////////////////////

void BrowserWindow::handleMessage(MSG* msg) {

        InitDoc();// document may not exist when the message arrives

        if (doc!=NULL){

                initIOIPAO();
                if (pIOIPAO!= NULL) {// pIOIPAO is a cached
IOleInPlaceActiveObject*
                        HRESULT hr =
pIOIPAO->TranslateAccelerator(msg);
                }
        }

}

//////////////////////////////////////////////////////////////////////
/*
cache the html document.
*/
IHTMLDocument2* BrowserWindow::InitDoc(){

        if (this->doc==NULL){
                HRESULT hr = spBrowser->get_Document(&dispatch);//
dispatch is an
IDispatch*
                if (!SUCCEEDED(hr) || dispatch==NULL) {
                        return NULL;
                }

dispatch->QueryInterface(IID_IHTMLDocument2,(void**)&(this->doc));
                dispatch->Release();
        }

        return this->doc;

}

//////////////////////////////////////////////////////////////////////
/*
cache the IOleInPlaceActiveObject.
*/
void BrowserWindow::initIOIPAO() {

        InitDoc();// doc may not be initialized yet
        if (doc!=NULL){

                doc->QueryInterface(IID_IOleInPlaceActiveObject,

(void**)&pIOIPAO);
        }