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CInternetSession::OpenURL

Posted on 1997-12-22
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Last Modified: 2013-11-19
The following is a function meant to load a webpage into the buffer.  It works fine except if url is not a valid url, or even if it just times out OpenURL does not return.  Instead an exception is thrown in kernel32.dll.  This isn't acceptable behavoir for my app.  However the function works perfectly if it find a valid url.  Does anybody have any ideas?  Any thoughts would be greatly appreciated. Thanx!

CInternetSession is("SPIDER");

int LoadURL(const char* url,char* buffer,int bufferSize)
{
 CStdioFile *urlHandle;
 char tmpBuffer[1000];
 int lenIntoBuf = 0;

 urlHandle = is.OpenURL(url);

 if (urlHandle == NULL)
  return 0;

 while (urlHandle->ReadString(tmpBuffer,1000) && 
  lenIntoBuf < bufferSize)
 {
 strncpy(buffer+lenIntoBuf,tmpBuffer,bufferSize-lenIntoBuf);
 lenIntoBuf += strlen(tmpBuffer);
 }
 return lenIntoBuf;
}
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Question by:tlsoftware
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Accepted Solution

by:
chensu earned 200 total points
ID: 1312908
OpenUrl is supposed to throw CInternetException. You should use try-catch.

try
{
    urlHandle = is.OpenURL(url);
}
catch (CInternetException *e)
{
    // exception handler
    // ...

    e->Delete();
}

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