Re: [Dev-C++] Network monitor - Question

[Per W. <pw...@ia...>]

Problem found, case closed :-)

/Per W

On Mon, 7 Apr 2003, Daniel Glenfield wrote:

>
> Quick response!
>
> I just logged back on to say I found a solution - and it sounds like you
> have found the reason.
>
> I put a watch on m_hWnd and after calling the function it said the
> expression could not be evaluated. I had allocated the buffer wrongly!
>
> unsigned long Buffer = 420;  // wrong
> unsigned long Buffer[420]; // Horay!
>
> So it seems the buffer was overwritten, and the variable m_hWnd was
> overwritten!
>
> Does that seem right?
>
>
> >From: Per Westermark <pw...@ia...>
> >To: Daniel Glenfield <sp...@ho...>
> >CC: zo...@ac...,  <Dev...@li...>
> >Subject: Re: [Dev-C++] Network monitor - Question
> >Date: Mon, 7 Apr 2003 17:38:05 +0200 (CEST)
> >
> >DWORD GetIpNetTable(
> >   PMIB_IPNETTABLE pIpNetTable,  // buffer for mapping table
> >   PULONG pdwSize,               // size of buffer
> >   BOOL bOrder                   // sort by IP address
> >);
> >
> >Are you setting your dwSize to the size of the buffer before calling
> >GetIpNetTable()? Else the call might overwrite the buffer, and thereby
> >destroy other variables in your program.
> >
> >/Per W
> >
> >On Mon, 7 Apr 2003, Daniel Glenfield wrote:
> >
> > >
> > >
> > > Hi, this was perfect for me and I didn't even ask the question! However
> > > there is something I'm having trouble with relating to this set of
> > > functions.
> > >
> > > I'm using VC++ (boo! lol) and using MFC I've built a dialog-based app
> >that
> > > gets info with GetIfTable() and some others. One of these functions is
> > > GetIpNetTable() which gets the ARP table.
> > >
> > > The problem is this - after much debugging I find that when I call
> > > GetIpNetTable() the window handle becomes 0 !!!! So while everywhere
> >else I
> > > can call SetDlgItemText() to put the buffer contents into an edit box, I
> >now
> > > get Assert errors (even if I try to exit the function!) because hwnd is
> >0!
> > >
> > > Has anyone heard of this? I've not found it on google.
> > >
> > > Daniel
> > >
> > >
> > >
> > >
> > > >From: Zodiaq <zo...@ac...>
> > > >Reply-To: Zodiaq <zo...@ac...>
> > > >To: Dev...@li...
> > > >Subject: Re: [Dev-C++] Network monitor
> > > >Date: Sun, 6 Apr 2003 18:13:13 +0200
> > > >
> > > >Hello Lambdabit and all Dev-C++ users,
> > > >
> > > >Sunday, April 6, 2003, 4:33:46 PM, Lambdabit wrote as follows:
> > > >
> > > >LJGS> how can I get the speed of my net interface's connection and the
> > > >packages sent and received?
> > > >
> > > >By calling Win32 API function named GetIfTable you get CURRENT bytes
> > > >sent and received for every interface (including loopback)... if you
> > > >call this function every 1sec (using timer) you can easly obtain speed
> > > >in bytes... but remember that this gives you total network load -
> > > >every byte of packets counts...
> > > >for more info and examples check msdn.microsoft.com
> > > >
> > > >LJGS> Thanks!
> > > >
> > > >--
> > > >regards, Zodiaq
> > > >
> > > >
> > > >
> > > >-------------------------------------------------------
> > > >This SF.net email is sponsored by: ValueWeb:
> > > >Dedicated Hosting for just $79/mo with 500 GB of bandwidth!
> > > >No other company gives more support or power for your dedicated server
> > > >http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/
> > > >_______________________________________________
> > > >Dev-cpp-users mailing list
> > > >Dev...@li...
> > > >TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> > > >https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> > >
> > > _________________________________________________________________
> > > Get Hotmail on your mobile phone http://www.msn.co.uk/mobile
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.net email is sponsored by: ValueWeb:
> > > Dedicated Hosting for just $79/mo with 500 GB of bandwidth!
> > > No other company gives more support or power for your dedicated server
> > > http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> >-------------------------------------------------------
> >This SF.net email is sponsored by: ValueWeb:
> >Dedicated Hosting for just $79/mo with 500 GB of bandwidth!
> >No other company gives more support or power for your dedicated server
> >http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/
> >_______________________________________________
> >Dev-cpp-users mailing list
> >Dev...@li...
> >TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
> >https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
> _________________________________________________________________
> Get Hotmail on your mobile phone http://www.msn.co.uk/mobile
>
>