Internet Connection Check?

Can someone point me in the right direction on how you can check to see if
you have an active internet connect?

Thanks,

David

David - basically, you try to reach a URL and see of you get a response.
Sample method (usage: if ( CheckConnection.Once(targetURL) ) ... )

public static bool Once(string targetAddress)
{
HttpWebRequest request;
HttpWebResponse response;
bool isConnected = false;

try
{
request = (HttpWebRequest)WebRequest.Create(targetAddress);
response = (HttpWebResponse)request.GetResponse();
request.Abort();

if(response.StatusCode == HttpStatusCode.OK)
{
isConnected = true;
}
}
catch(WebException we)
{
string errMsg = we.Message;
isConnected = false;
}
catch(Exception ex)
{
string errMsg = ex.Message;
isConnected = false;
}
finally
{
request = null;
response = null;
}
return isConnected;
}

--
Darren Shaffer
Principal Architect
Connected Innovation

"David Pope" <dpope@nospam.satx.rr.com> wrote in message
news:OweUVfeKFHA.4092@tk2msftngp13.phx.gbl...
> Can someone point me in the right direction on how you can check to see if
> you have an active internet connect?
>
> Thanks,
>
> David
>

You may try this:

bool IsConnected
{
get
{
int flags = 0;
return InternetGetConnectedStateEx(out flags, 0, 0, 0);
}
}

[DllImport("wininet.dll")]
private extern static bool InternetGetConnectedStateEx(out InetFlags
flags, int reservedValue, int dwNameLen, int dwReserved);

Best regards,
Sergey Bogdanov
http://www.sergeybogdanov.com


David Pope wrote:
> Can someone point me in the right direction on how you can check to see if
> you have an active internet connect?
>
> Thanks,
>
> David
>
>

Hello Sergey,

In which namespace is the InetFlags ? Cann't find it or maybe I'm
overlooking something.

Regards
Peter



"Sergey Bogdanov" <sergey.bogdanov@gmail.com> schreef in bericht
news:e%23xICufKFHA.2136@TK2MSFTNGP14.phx.gbl...
> You may try this:
>
> bool IsConnected
> {
> get
> {
> int flags = 0;
> return InternetGetConnectedStateEx(out flags, 0, 0, 0);
> }
> }
>
> [DllImport("wininet.dll")]
> private extern static bool InternetGetConnectedStateEx(out InetFlags
> flags, int reservedValue, int dwNameLen, int dwReserved);
>
> Best regards,
> Sergey Bogdanov
> http://www.sergeybogdanov.com
>
>
> David Pope wrote:
> > Can someone point me in the right direction on how you can check to see
if
> > you have an active internet connect?
> >
> > Thanks,
> >
> > David
> >
> >

Hi

see
http://msdn.microsoft.com/library/d...ctedstateex.asp


you can find it on Wininet.h

// Flags for InternetGetConnectedState and Ex
#define INTERNET_CONNECTION_MODEM 0x01
#define INTERNET_CONNECTION_LAN 0x02
#define INTERNET_CONNECTION_PROXY 0x04
#define INTERNET_CONNECTION_MODEM_BUSY 0x08 /* no longer used */
#define INTERNET_RAS_INSTALLED 0x10
#define INTERNET_CONNECTION_OFFLINE 0x20
#define INTERNET_CONNECTION_CONFIGURED 0x40


Regards

ACP


"Peter" wrote:

> Hello Sergey,
>
> In which namespace is the InetFlags ? Cann't find it or maybe I'm
> overlooking something.
>
> Regards
> Peter
>
>
>
> "Sergey Bogdanov" <sergey.bogdanov@gmail.com> schreef in bericht
> news:e%23xICufKFHA.2136@TK2MSFTNGP14.phx.gbl...
> > You may try this:
> >
> > bool IsConnected
> > {
> > get
> > {
> > int flags = 0;
> > return InternetGetConnectedStateEx(out flags, 0, 0, 0);
> > }
> > }
> >
> > [DllImport("wininet.dll")]
> > private extern static bool InternetGetConnectedStateEx(out InetFlags
> > flags, int reservedValue, int dwNameLen, int dwReserved);
> >
> > Best regards,
> > Sergey Bogdanov
> > http://www.sergeybogdanov.com
> >
> >
> > David Pope wrote:
> > > Can someone point me in the right direction on how you can check to see
> if
> > > you have an active internet connect?
> > >
> > > Thanks,
> > >
> > > David
> > >
> > >
>
>
>

Just replace it with 'int'.

Best regards,
Sergey Bogdanov
http://www.sergeybogdanov.com


Peter wrote:
> Hello Sergey,
>
> In which namespace is the InetFlags ? Cann't find it or maybe I'm
> overlooking something.
>
> Regards
> Peter
>
>
>
> "Sergey Bogdanov" <sergey.bogdanov@gmail.com> schreef in bericht
> news:e%23xICufKFHA.2136@TK2MSFTNGP14.phx.gbl...
>
>>You may try this:
>>
>>bool IsConnected
>>{
>>get
>>{
>>int flags = 0;
>>return InternetGetConnectedStateEx(out flags, 0, 0, 0);
>>}
>>}
>>
>>[DllImport("wininet.dll")]
>>private extern static bool InternetGetConnectedStateEx(out InetFlags
>>flags, int reservedValue, int dwNameLen, int dwReserved);
>>
>>Best regards,
>>Sergey Bogdanov
>>http://www.sergeybogdanov.com
>>
>>
>>David Pope wrote:
>>
>>>Can someone point me in the right direction on how you can check to see
>
> if
>
>>>you have an active internet connect?
>>>
>>>Thanks,
>>>
>>>David
>>>
>>>
>
>
>