Re: CInternetSession

From:

SOCAR <socar@iv.pl>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sun, 27 May 2007 17:06:14 +0200

Message-ID:

<1p1jqf9sqv0b5$.g4we18xtjq3a.dlg@40tude.net>

Dnia Sun, 27 May 2007 14:24:53 GMT, MrAsm napisa?(a):

Why don't you check in your code if MyFile pointer is NULL?

Moreover, CInternetSession::OpenURL method documentation says:

http://msdn2.microsoft.com/en-us/library/d25ew7sy(VS.80).aspx

"This method can throw exceptions of type CInternetException*."

Why don't you catch exceptions?

And have you tried using CHttpFile * instead of CStdioFile * ?

I have tried below code before (which comply with your questions)
    try{
while(true)
{
  CInternetSession csiSession;
  CHttpFile* MyFile = (CHttpFile*)
csiSession.OpenURL(_T("http://www.google.com"));
  if( MyFile != NULL )
  {

    MyFile->Close();
    delete MyFile;
  }
}
    }
    catch(CInternetException*
e){MessageBox(NULL,_T("goterror"),_T("goterror"),MB_OK);
    }
Sleep(10000);
}

but still I receive "First Chance Exception" warning. Also app have memory
leak about 4KB per loop (shown in TaskManager). The catch block is not
utilized in any way - app dont raise any exceptions during execution. Also
it returns a normal data from the http request via CStdioFile or CHttpFile.
Only thing is that it got this memory leaks, which "dissapears" when I
comment out "OpenURL" Line.

--
SOCAR