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来自「VB技巧问答10000例,是一个教程」· HTML 代码 · 共 22 行

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    <title>Re: 关于拨号网路</title>
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      <h1>Re: 关于拨号网路</h1>
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Posted by <a href="mailto:johnnyab@ms8.hinet.net">Johnny Guo</a> on April 05, 1998 at 08:21:11:<p>
In Reply to: <a href="2485.html"><b>关于拨号网路</b></a> posted by Lily on April 02, 1998 at 19:39:02:<p>
<br>: 不知是否有方法可以测知拨号网路拨接成功或是失败 ?<p>先宣告如下<br>Public Const RAS_MaxEntryName = 256<br>Public Const RAS_MaxDeviceName = 128<br>Public Const RAS_MaxDeviceType = 16<p>Type RASCONN<br>     dwSize As Long<br>     hrasconn As Integer<br>     szEntryName(RAS_MaxEntryName + 1) As Byte<br>     szDeviceType(RAS_MaxDeviceType + 1) As Byte<br>     szDeviceName(RAS_MaxDeviceName + 1) As Byte<br>End Type<p><br>Public Declare Function RasEnumConnections& Lib "rasapi32" Alias "RasEnumConnectionsA" (lprasconn As RASCONN, lpcb As Long, lpConnect As Long)<p>再 call 底下的 function<br>Private Function AlreadyConnect() As Boolean<br>    Dim Conn() As RASCONN<br>    Dim dl&, size&, validConnection&<br>    ReDim Conn(0)<br>    Conn(0).dwSize = Len(Conn(0))<br>    size = Len(Conn(0))<br>    dl& = RasEnumConnections(Conn(0), size, validConnection)<br>    If dl& = 0 Then<br>       If validConnection > 0 Then<br>          AlreadyConnect = True<br>       Else<br>          AlreadyConnect = False<br>       End If<br>    Else<br>       AlreadyConnect = False<br>    End If<br>End Function<br>
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