BOOLEAN ConnectionAvailable(VOID)
{
if (WindowsVersion > WINDOWS_VISTA)
{
INetworkListManager* pNetworkListManager = NULL;
// Create an instance of the INetworkListManger COM object.
if (SUCCEEDED(CoCreateInstance(&CLSID_NetworkListManager, NULL, CLSCTX_ALL, &IID_INetworkListManager, &pNetworkListManager)))
{
VARIANT_BOOL isConnected = VARIANT_FALSE;
VARIANT_BOOL isConnectedInternet = VARIANT_FALSE;
// Query the relevant properties.
INetworkListManager_get_IsConnected(pNetworkListManager, &isConnected);
INetworkListManager_get_IsConnectedToInternet(pNetworkListManager, &isConnectedInternet);
// Cleanup the INetworkListManger COM objects.
INetworkListManager_Release(pNetworkListManager);
// Check if Windows is connected to a network and it's connected to the internet.
if (isConnected == VARIANT_TRUE && isConnectedInternet == VARIANT_TRUE)
return TRUE;
// We're not connected to anything
//return FALSE;
}
}
typedef BOOL(WINAPI *_InternetGetConnectedState)(
__out PULONG lpdwFlags,
__reserved ULONG dwReserved
);
BOOLEAN isSuccess = FALSE;
ULONG wininetState = 0;
_InternetGetConnectedState InternetGetConnectedState_I = NULL;
HMODULE inetHandle = NULL;
__try
{
if (!(inetHandle = LoadLibrary(L"wininet.dll")))
__leave;
InternetGetConnectedState_I = (_InternetGetConnectedState)GetProcAddress(inetHandle, "InternetGetConnectedState");
if (!InternetGetConnectedState_I)
__leave;
if (InternetGetConnectedState_I(&wininetState, 0))
isSuccess = TRUE;
}
__finally
{
if (inetHandle)
{
FreeLibrary(inetHandle);
}
}
return isSuccess;
}
BOOLEAN ConnectionAvailable(VOID)
{
INetworkListManager* networkListManager = NULL;
if (SUCCEEDED(CoCreateInstance(
&CLSID_NetworkListManager,
NULL,
CLSCTX_ALL,
&IID_INetworkListManager,
&networkListManager
)))
{
VARIANT_BOOL isConnected = VARIANT_FALSE;
VARIANT_BOOL isConnectedInternet = VARIANT_FALSE;
// Query the relevant properties.
INetworkListManager_get_IsConnected(networkListManager, &isConnected);
INetworkListManager_get_IsConnectedToInternet(networkListManager, &isConnectedInternet);
// Cleanup the INetworkListManger COM objects.
INetworkListManager_Release(networkListManager);
// Check if Windows is connected to a network and it's connected to the internet.
if (isConnected == VARIANT_TRUE && isConnectedInternet == VARIANT_TRUE)
return TRUE;
// We're not connected to anything
}
return FALSE;
}
static BOOL ConnectionAvailable(
VOID
)
{
if (WindowsVersion > WINDOWS_XP)
{
INetworkListManager *pNetworkListManager;
// Create an instance of the INetworkListManger COM object.
if (SUCCEEDED(CoCreateInstance(&CLSID_NetworkListManager, NULL, CLSCTX_ALL, &IID_INetworkListManager, &pNetworkListManager)))
{
VARIANT_BOOL isConnected = VARIANT_FALSE;
VARIANT_BOOL isConnectedInternet = VARIANT_FALSE;
// Query the relevant properties.
INetworkListManager_get_IsConnected(pNetworkListManager, &isConnected);
INetworkListManager_get_IsConnectedToInternet(pNetworkListManager, &isConnectedInternet);
// Cleanup the INetworkListManger COM object.
INetworkListManager_Release(pNetworkListManager);
pNetworkListManager = NULL;
// Check if Windows is connected to a network and it's connected to the internet.
if (isConnected == VARIANT_TRUE && isConnectedInternet == VARIANT_TRUE)
{
// We're online and connected to the internet.
return TRUE;
}
// We're not connected to anything.
return FALSE;
}
// If we reached here, we were unable to init the INetworkListManager, fall back to InternetGetConnectedState.
goto NOT_SUPPORTED;
}
else
NOT_SUPPORTED:
{
DWORD dwType;
if (InternetGetConnectedState(&dwType, 0))
{
return TRUE;
}
else
{
LogEvent(NULL, PhFormatString(L"Updater: (ConnectionAvailable) InternetGetConnectedState failed to detect an active Internet connection (%d)", GetLastError()));
}
//if (!InternetCheckConnection(NULL, FLAG_ICC_FORCE_CONNECTION, 0))
//{
// LogEvent(PhFormatString(L"Updater: (ConnectionAvailable) InternetCheckConnection failed connection to Sourceforge.net (%d)", GetLastError()));
// return FALSE;
//}
}
return FALSE;
}
BOOL ConnectionAvailable(
VOID
)
{
BOOLEAN isSuccess = FALSE;
HMODULE libraryHandle = NULL;
INetworkListManager* networkListPtr = NULL;
__try
{
if (WindowsVersion < WINDOWS_VISTA)
{
ULONG inetState = 0;
_InternetGetConnectedState inetGetConnectedState_I = NULL;
if (!(libraryHandle = LoadLibrary(L"wininet.dll")))
__leave;
if (!(inetGetConnectedState_I = (_InternetGetConnectedState)GetProcAddress(libraryHandle, "InternetGetConnectedState")))
__leave;
if (inetGetConnectedState_I(&inetState, 0))
isSuccess = TRUE;
}
else
{
VARIANT_BOOL isConnected = VARIANT_FALSE;
VARIANT_BOOL isConnectedInternet = VARIANT_FALSE;
// Create an instance of the INetworkListManger COM object.
if (FAILED(CoCreateInstance(&CLSID_NetworkListManager, NULL, CLSCTX_ALL, &IID_INetworkListManager, &networkListPtr)))
__leave;
// Query the relevant properties.
INetworkListManager_get_IsConnected(networkListPtr, &isConnected);
INetworkListManager_get_IsConnectedToInternet(networkListPtr, &isConnectedInternet);
// Check if Windows is connected to a network and it's connected to the internet.
if (isConnected == VARIANT_TRUE && isConnectedInternet == VARIANT_TRUE)
isSuccess = TRUE;
}
}
__finally
{
if (libraryHandle)
FreeLibrary(libraryHandle);
if (networkListPtr)
INetworkListManager_Release(networkListPtr);
}
return isSuccess;
}
