how to create a new window using the CWindowImpl class

Question

im trying to build a new window using the following class. however im having some serious problems while trying to get the new generated window's name using the CWindow::m_hwnd variable. my guess is that i should pass a variable to the CWindowImpl::Create() function that holds my parent's HWND but i dont know how to get it.

STDMETHODIMP CVMNExporter::SetSite(IUnknown *pUnkSite) {
    HRESULT hr;
    if(FAILED(hr = ATL::IObjectWithSiteImpl<CVMNExporter>::SetSite(pUnkSite)))
        return hr;
    // We are rnning from a web browser
    CONNECTION_CALLBACK = JSCRIPT_DISPID;
    EXPORTING_CALLBACK  = JSCRIPT_DISPID;
    MERGING_CALLBACK    = JSCRIPT_DISPID;
    ABORTING_CALLBACK   = JSCRIPT_DISPID;

    AddRef();
    if(NULL == Create(0)) {// Creates the hidden window
        Release();
        return HRESULT_FROM_WIN32(GetLastError());
    }
    ATLTRACE("TEST - SetSite(): this: %d, window: %d", this, m_hWnd);
    m_dwApartmentMode = HWND_APARTMENT;
    SendMessage(WM_EXPORTER_APARTMENT_SETUP, 0, 0);
    return S_OK;  }

CVMNExporter implements the following interfaces:

        public ATL::IObjectSafetyImpl<CVMNExporter, INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA>,
        public ATL::IObjectWithSiteImpl<CVMNExporter>,
        public ATL::CWindowImpl<CVMNExporter, ATL::CWindow, ATL::CFrameWinTraits>,

thanks!

CWindowImpl::Create creates you the window and you are going to have your HWND available since there. If you want to provide parent window handle, you need to first obtain it from your site. You will need to query it using IOleWindow::GetWindow or similar method. — Roman Ryltsov
– Roman Ryltsov, Commented May 6, 2012 at 9:14

igal k · Accepted Answer · 2012-05-06 12:07:02Z

1

Well it took me some time, but managed to solve it by using GetActiveWindow()

answered May 6, 2012 at 12:07

igal k

1,9242 gold badges29 silver badges59 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

how to create a new window using the CWindowImpl class

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related