how to detect an internet connection

[LordDuzy]

I need my program to detect an internet connection. I need it because i want to use the internet transfer control when the computer is connected.

 

[Hypetia]

Check the InternetGetConnectedState API function. It returns a non-zero value when online, and zero when offline.
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[tt]
Private Declare Function InternetGetConnectedState Lib "wininet.dll" (lpdwFlags As Long, ByVal dwReserved As Long) As Long
Private Sub Form_Load()
If InternetGetConnectedState(ByVal 0, 0) Then
MsgBox "connected"
Else
MsgBox "not connected"
End If
End Sub[/tt]

 

[LordDuzy]

hey thanks man
it works

 

[strongm]

Be aware that there are some limitations with this call. We held a reasonably in-depth investigation into it in this forum a couple of years ago, but I sadly can't find the relevant thread. Instead, I'll provide this URL which flags some of the limitations

 

[Niphyr]

Hey, thats neat, thankyou Hypetia. I was about to post a question of the like!

-Niphyr

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http://niphyr.topcities.com

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[TheTuna]

StrongM, I'd be interested in that URL you mentioned, and learning about the limitations as well... thanks for pointing out that there are limitations.

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