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