forum.vdsworld.com

Serge · Posted: Sun Apr 14, 2002 7:30 am Post subject: connected to the internet

I remember someone posting a question about how to determine if a computer is connected to the Internet using VDS. And i can't find that post so i'll put my 2 cents worth here!

Having been in need of such an answer, i did some research and found that the the STATS section of the registry deals with dial up connection data. One of them records the dial up connection and it is 9600 when not connected to the net.

If however you are connected to the net, then that registry entry records your connect speed eg. 31200.

So, i use code like the following to determine using VDS if a computer is connected to the net or not.

Dr. Dread · Posted: Sun Apr 14, 2002 8:27 am Post subject:

Hi, Serge!

I'm afraid that your routine won't work universally - the STATS root is not available
in WinXP (and Win2K, I think). Also various Internet connections, such as DSL, are not
dial-up connections so you will not get viable results from reading values pertaining to
that.

One way of getting a status on Internet connection would be to use a ping command to
ping some stable host on the Internet and interpret the results:

Serge · Posted: Sun Apr 14, 2002 10:04 am Post subject:

Thanks for your comments, Dr. Dread. I'm not concerned in my case with Win XP although i am concerned about other Internet connections.

I will see at work what the story is as we have Internet connection there but not with dial-up. So, i'll see what the registry says about where to look for the necessary information.

It's a shame that there isn't an efficient way. Your ping idea is good but it wouldn't work for my program as i can't have it waiting for the ping return.

Serge

Dr. Dread · Posted: Sun Apr 14, 2002 5:09 pm Post subject:

OK Serge, if you find something useable in the registry, please let us know - it might come in handy.

By the way, I updated my ping routine above to do only 1 ping instead of 4 so that should
speed up things considerably.

Greetz
Dr. Dread

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1565

I've put together a little dll (23kb) which will allow you to find the status of the users internet connection (0 - offline; 1 - online) and it will also return the IP Address.

You can get it at : http://www.vdsworld.com/index.php?page=download&fileid=176

Dr. Dread · Posted: Sun Apr 14, 2002 10:23 pm Post subject:

PGWARE · **Web Host** Joined: 29 Dec 2001 Posts: 1565

I'm pretty sure the code is looking for an internet ip rather then a local network assigned ip address. I'm not 100% certain, anyone with a network want to try out the dll and see if it reports the correct online statur or not?

LOBO · Posted: Mon Apr 15, 2002 1:06 am Post subject:

Dr. Dread · Posted: Mon Apr 15, 2002 1:21 am Post subject:

LOBO · Posted: Mon Apr 15, 2002 1:35 am Post subject:

Mac · Posted: Mon Apr 15, 2002 6:48 am Post subject:

_____________________________________________________________
The DLL doesn't work here either (network, static IP also).

This may not work on all systems, but on my Win95
dialup I can check for a "connected" window using
@match() and WINLIST.

Here's an example:

marty · Professional Member Joined: 10 May 2001 Posts: 789

I posted an example on how to check for local and public IP adresses with a command line freeware I found a while ago and VDS.

Also it's a good way to check if you have an internet connection.

The freeware command line tool is only 63k!

Get it here....

http://www.vdsworld.com/index.php?page=download&fileid=177

Hope this will help you out... Wink

moke · Contributor Joined: 02 Jan 2002 Posts: 162

I used several differnt methods including ping, to detect internet connections, but none were reliable enough. I now use a routine (using vdsipp.dll) that checks the header of files on 2 different web sites. If the first check fails fails it checks the second. Since both the web sites are mine I set the header criteria so I don't need to worry about defaul error pages giving incorrect results. Because firewalls were a problem I decided that http would probably be the best solution. I use something like this:

Serge · Posted: Wed Apr 17, 2002 10:44 am Post subject:

Just an update to let you know.

I have looked in the registry an found nothing that would help me determine if someone is connected to the net except for the 9600 dialup thing i mentioned earlier.

Thanks for all your comments and suggestions, and for the dll.

I had earlier used IPCONFIG.EXE to determine net connection and found that it worked ok as the Internet IP would show up first and the network one would show up second. So checking that the first IP was not 0.0.0.0 would indicate network connection. Can someone with a permanent connection and a network connection please verify that for me - please Wink

Shame that there isn't an easier answer.

Serge

Dr. Dread · Posted: Wed Apr 17, 2002 11:27 am Post subject: