Re: [PATCH v2 0/7] MR4986: mshtml: MessageEvent improvements and misc.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about dlls/mshtml/htmlwindow.c:
> -
>    return NULL;
> -
> - /* Native assumes it's VT_DISPATCH and doesn't check it */
> - hres = IDispatch_QueryInterface(V_DISPATCH(&var), &IID_IHTMLWindow2, (void**)&source);
> - IDispatch_Release(V_DISPATCH(&var));
> - if(hres != S_OK)
> -
>    return NULL;
> -
> - if(compat_mode < COMPAT_MODE_IE9) {
> -
>    IHTMLWindow2 *tmp;
> -
>    hres = IHTMLWindow2_get_self(source, &tmp);
> -
>    if(hres == S_OK) {
> -
>        IHTMLWindow2_Release(source);
> -
>        source = tmp;
> -
>    }
> - }

Why is it needed?