Private Declare Function InternetGetConnectedState Lib "wininet" (ByRef dwflags As Long, _ ByVal dwReserved As Long) As Long Private Const CONNECT_LAN As Long = &H2 Private Const CONNECT_MODEM As Long = &H1 Private Const CONNECT_PROXY As Long = &H4 Private Const CONNECT_OFFLINE As Long = &H20 Private Const CONNECT_CONFIGURED As Long = &H40 Public Function IsWebConnected(Optional ByRef ConnType As String) As Boolean Dim dwflags As Long Dim WebTest As Boolean ConnType = "" WebTest = InternetGetConnectedState(dwflags, 0&) Select Case WebTest Case dwflags And CONNECT_LAN: ConnType = "LAN" Case dwflags And CONNECT_MODEM: ConnType = "Modem" Case dwflags And CONNECT_PROXY: ConnType = "Proxy" Case dwflags And CONNECT_OFFLINE: ConnType = "Offline" Case dwflags And CONNECT_CONFIGURED: ConnType = "Configured" Case dwflags And CONNECT_RAS: ConnType = "Remote" End Select IsWebConnected = WebTest End Function Private Sub Command1_Click() Dim msg As String If IsWebConnected(msg) Then msg = "You are connected to the Internet via : " & msg Else msg = "You are not connected to the Internet." End If MsgBox msg, vbOKOnly, "Internet Connection Status" End Sub
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