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Disconnecting Dial Up Network

Posted on 1998-08-04
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Last Modified: 2010-05-03
How can I disconnecting an internet connection WITHOUT running DUN and send key?
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Question by:fury
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waty earned 50 total points
ID: 1467770
' *** disconnect from the internet using VB
Private Const RAS_MAXENTRYNAME As Integer = 256
Private Const RAS_MAXDEVICETYPE As Integer = 16
Private Const RAS_MAXDEVICENAME As Integer = 128
Private Const RAS_RASCONNSIZE As Integer = 412

Private Type RasEntryName
    dwSize                          As Long
    szEntryName(RAS_MAXENTRYNAME)   As Byte
End Type

Private Type RasConn
    dwSize                          As Long
    hRasConn                        As Long
    szEntryName(RAS_MAXENTRYNAME)   As Byte
    szDeviceType(RAS_MAXDEVICETYPE) As Byte
    szDeviceName(RAS_MAXDEVICENAME) As Byte
End Type

Private Declare Function RasEnumConnections Lib "rasapi32.dll" Alias "RasEnumConnectionsA" (lpRasConn As Any, lpcb As Long, lpcConnections As Long) As Long
Private Declare Function RASHangUp Lib "rasapi32.dll" Alias "RasHangUpA" (ByVal hRasConn As Long) As Long

Public Sub HangUpConnection(sISPName As String)
   ' *** Disconnect from the internet using VB?
   ' *** If you want to terminate all connections to the internet using Visual Basic,
   ' *** you can use the Remote Access Services Hangup function.
   
   Dim i                As Long
   Dim lpRasConn(255)   As RasConn
   Dim lpcb             As Long
   Dim lpcConnections   As Long
   Dim hRasConn         As Long
   Dim nRet             As Long
   
   lpRasConn(0).dwSize = RAS_RASCONNSIZE
   lpcb = RAS_MAXENTRYNAME * lpRasConn(0).dwSize
   lpcConnections = 0
   nRet = RasEnumConnections(lpRasConn(0), lpcb, lpcConnections)
   
   If nRet = ERROR_SUCCESS Then
      For i = 0 To lpcConnections - 1
         If Trim(ByteToString(lpRasConn(i).szEntryName)) = Trim(sISPName) Then
            hRasConn = lpRasConn(i).hRasConn
            nRet = RASHangUp(ByVal hRasConn)
         End If
      Next
   End If

End Sub

Private Function ByteToString(bytString() As Byte) As String
   Dim i As Integer
   
   ByteToString = ""
   i = 0
   While bytString(i) = 0&
      ByteToString = ByteToString & Chr(bytString(i))
      i = i + 1
   Wend
   
End Function

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Author Comment

by:fury
ID: 1467771
well..I know I am greedy :) Can I also have the code for the SENDKEY way....
Thanks a lot

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