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Replyklonopin price klonopin dosage weight - klonopin side effects and breastfeeding
ReplyOriginally posted by: Patrick Philippot
Edwin Eefting made a clever comment about using the IP
Basically, you just look at the system IP routing table and
This doesn't guarantee that any request will succeed (the
Here's a sample routine:
#include <iphlpapi.h>
BOOL YourClass::CheckConnection()
GetIpForwardTable(NULL, &dwTableSize, FALSE);
if (GetIpForwardTable(pft,
delete pft;
return bHasDefaultRoute;
Note that your system must support the IPHLPAPI, which is
This code has been tested on various configurations from
Hope this helps.
--Patrick Philippot
Hi,
routing table to detect a connection. I have implemented
this brillant idea and I have to say that this is actually
a very interesting solution.
check whether an entry exists for a default gateway
(0.0.0.0). If yes, the system either has an active dial-up
connection or is connected via LAN, DSL or cable. As soon
as the dial-up connection is broken, the default gateway
entry disappears from the IP routing table.
cable may be unplugged or the user may have logged off from
the ISP) but you can check this afterwards, **the main
interest of this approach being that is doesn't trigger any
autodial process**. If the function below returns FALSE,
you will not even try to access the Internet: you know that
any request will fail anyway. If it returns TRUE, you can
safely make a connection attempt without incurring the risk
of triggering an autodial. You will possibly get an error
when using WinInet or any socket function.
...
{
MIB_IPFORWARDTABLE* pft;
DWORD dwTableSize = 0;
BOOL bHasDefaultRoute = FALSE;
pft = (MIB_IPFORWARDTABLE*) new BYTE[dwTableSize];
&dwTableSize,
TRUE) == NO_ERROR)
{
for (unsigned int nIndex = 0;
nIndex < pft->dwNumEntries;
nIndex++)
{
if (pft->table[nIndex].dwForwardDest == 0)
// Default route to gateway
{
bHasDefaultRoute = TRUE;
break;
}
}
}
}
not the case for Win95 and Windows NT 4 pre-SP4.
Win98 to XP) and it worked fine each time.
Microsoft MVP [.Net]
Consulting Services
www.mainsoft.fr
Your solution should have been included in "Visual C++ Goodies" instead of "Function To Verify if Connected to the internet" methinks. Too bad the book came out first. Thanks Patrick (and Edwin) for sharing it
ReplyUr solution works perfectly
ReplyOriginally posted by: Eugene Polonsky
Using Winsock to check connection status--has anyone run into any issues regarding proxy server settings when attempting to verify connection?
ReplyOriginally posted by: Maverick
I need some one can help to slove this problem .
I add one code "#include <intshcut.h> but my program still
thanks the guy that can help me.
Dear all:
"error LNK2001 :unresolved external symble __imp__InetIsOffline@4"
can not link with VC ++ 6.0.
Add url.lib to ur settings\Link tab
ReplyOriginally posted by: Rey
When I compile wininet.h I get an error with LPVOID, can anyone help?
ReplyOriginally posted by: Priyanka
I saw all the methods that u guys had suggested for finding out there is an active internet connection but wanted to know if anything similar is available in VJ++.
Any help would be appreciated!!
thnx,
Priyanka
Hey,
Originally posted by: Phil Hord
I've heard from a user that autodial is erroneously triggered on Windows ME. Does anyone have any info on WinME registry settings to disable AutoDial?
ReplyOriginally posted by: V�ctor Lema
no 'ta el archivo .zip
ReplyOriginally posted by: Rob Adamson
DWORD WINAPI ConnectThreadProc(LPVOID lpResult)
*lpbResult = IsInternetConnected();
BOOL mfIsInternetConnected()
BOOL bInternetConnected = FALSE;
if (WaitForSingleObject(hConThread, 5000) == WAIT_TIMEOUT)
There seems to be a problem in the gethostbyname because I could not find a way to shorten the connection timeout. 30 seconds or more is way too long for most users. I finally resorted to threads to make this work with a 5 second timeout.
{
BOOL* lpbResult = (BOOL*) lpResult;
return 0;
}
{
BOOL bResult = FALSE;
DWORD dwThreadId = 0;
HANDLE hConThread = CreateThread(NULL, 0, ConnectThreadProc, &bInternetConnected, 0, &dwThreadId);
{
TerminateThread(hConThread, 0);
}
return (bInternetConnected);
}