Re: Why CoCreateInstance hangs on XP SP2 ?

From:

"Giovanni Dicanio" <invalid@email.it>

Newsgroups:

microsoft.public.vc.language

Date:

Sat, 14 Jul 2007 14:45:14 +0200

Message-ID:

<OB$ZXThxHHA.5068@TK2MSFTNGP05.phx.gbl>

"Abin" <abintom@gmail.com> ha scritto nel messaggio
news:1184331612.270614.165690@j4g2000prf.googlegroups.com...

hi,
  I used the following code to post some data to a url, through web
browser.

               HRESULT hr;
IWebBrowser2* pWBApp = NULL;
BSTR bstrURL = NULL, bstrHeaders = NULL;
VARIANT vFlags = {0}, vTargetFrameName = {0}, vPostData =
{0},vHeaders = {0};

              hr = CoCreateInstance( CLSID_InternetExplorer,
NULL, CLSCTX_LOCAL_SERVER , IID_IWebBrowserApp,
(LPVOID*)&pWBApp );

Another test:

Try passing IID_IWebBrowser2 to CoCreateInstance (considering that pWBApp is
IWebBrowser2 interface pointer), and then, if SUCEEDED(hr), QueryInterface
IID_IWebBrowserApp from IWebBroswer2 interface, i.e.:

//
// Create IWebBrowser2
//
IWebBrowser2 * pWebBrowser2 = NULL;
hr = CoCreateInstance(
    CLSID_InternetExplorer,
    NULL,
    CLSCTX_LOCAL_SERVER,
    IID_IWebBroswer2,
    (void **) &pWebBrowser2
);
if ( FAILED(hr) )
    ... error

//
// QueryInterface IWebBrowserApp
//
IWebBroswerApp * pWBApp = NULL;
hr = pWebBrowser2->QueryInterface(
    IID_IWebBroswerApp,
    (void **) &pWBApp
);

You might also consider asking the question to the ATL group
microsoft.public.vc.atl.

G

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