IsNetworkAlive function

Hello,

I'm writing a small app for a windows cd 5.0 device in .net 2005. This will be connected via Wifi.
I am trying to determine when the device is connected to the network. The IsNetworkAlive api call works fine on a Windows 2000/xp pc (example follows)

Private Declare Function IsNetworkAlive Lib "SENSAPI.DLL" (ByRef lpdwFlags As Long) As Long
Const NETWORK_ALIVE_AOL = &H4
Const NETWORK_ALIVE_LAN = &H1
Const NETWORK_ALIVE_WAN = &H2

Dim Ret As Long
If IsNetworkAlive(Ret) = 0 Then
MsgBox "The local system is not connected to a network!"
Else
MsgBox "The local system is connected to a " + IIf(Ret = NETWORK_ALIVE_AOL, "AOL", _
IIf(Ret = NETWORK_ALIVE_LAN, "LAN", "WAN")) + " network!"
End If


Is it possible to do this on Windows CE?

Thank you.

Hi.
Why don't u use system.Net.Dns.GetHostName ?

Or you can use inthehand classes http://inthehand.com/

or you can construct your own API with and dll it for pocket pc

Good question.

I try it.

Teo

Take a look here - excellent video on how to handle it

Ok i have made a post on codebank that will try to simulate The IsNetworkAlive api. It gives info on the adapter and if it is connected.
Just use my link in the signature.

Never mind,

Just read that you are using Windows CE, suggested something for Windows Mobile. :)

Hello,

There is the SNAPI that has a classes called WIFIConnected, WIFIconnecting, and WIFIAvailable.

I think this is all you need.

Hope this helps,

Steve

This is what I was going to suggest, but I thought that was only for Windows Mobile, not for Windows CE.

Can you confirm?

Thanks,

Gary

Hello,

Thanks for the suggestions and sorry for the late reply.

Everything works fine on windows mobile but on CE it doesn't work as expected.

First of all SNAPI WIFIConnected, WIFIconnecting, and WIFIAvailable are not supported on CE. I used the OpenNETCF and the example found here
http://msdn.microsoft.com/en-us/library/aa446491.aspx


I tried the system.Net.Dns.GetHostName. I tried it when the device was in range and had connection and a network address and without.
In both cases it takes very long to reply. About 35 seconds.

The same result was when I tried intheHand component. It takes over 30 seconds to reply. I used the ping.send command. You can set the timeout parameter also.

I tried intheHand component on a Windows mobile device. It works excellent.

I think i've tried everything on the CE but i get the same result every time. It takes over 30 seconds to reply.
I've installed compact framework sp2 also.

Any idea would be appreciated.

Thank you.
Teo