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C#中怎么实现ADSL自动拨号,针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
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C# ADSL自动拨号,前提是在系统中已经有了一个宽带拨号连接
C# ADSL自动拨号调用代码:
RASDisplayras=newRASDisplay(); ras.Disconnect();//断线 ras.Connect("adsl");//拨号 usingSystem; usingSystem.Runtime.InteropServices; publicstructRASCONN { publicintdwSize; publicIntPtrhrasconn; [MarshalAs(UnmanagedType.ByValTStr,SizeConst=257)] publicstringszEntryName; [MarshalAs(UnmanagedType.ByValTStr,SizeConst=17)] publicstringszDeviceType; [MarshalAs(UnmanagedType.ByValTStr,SizeConst=129)] publicstringszDeviceName; } [StructLayout(LayoutKind.Sequential,CharSetCharSet=CharSet.Auto)] publicstructRasStats { publicintdwSize; publicintdwBytesXmited; publicintdwBytesRcved; publicintdwFramesXmited; publicintdwFramesRcved; publicintdwCrcErr; publicintdwTimeoutErr; publicintdwAlignmentErr; publicintdwHardwareOverrunErr; publicintdwFramingErr; publicintdwBufferOverrunErr; publicintdwCompressionRatioIn; publicintdwCompressionRatioOut; publicintdwBps; publicintdwConnectionDuration; } [StructLayout(LayoutKind.Sequential,CharSetCharSet=CharSet.Auto)] publicstructRasEntryName { publicintdwSize; //[MarshalAs(UnmanagedType.ByValTStr,SizeConst=(int)RasFieldSizeConstants. RAS_MaxEntryName+1)] publicstringszEntryName; //#ifWINVER5 //publicintdwFlags; //[MarshalAs(UnmanagedType.ByValTStr,SizeConst=260+1)] //publicstringszPhonebookPath; //#endif } publicclassRAS { [DllImport("RaSAPa>i32.dll", EntryPoint="RasEnumConnectionsA", SetLastError=true)] internalstaticexternintRasEnumConnections ( refRASCONNlprasconn,//buffertoreceiveconnectionsdata refintlpcb,//sizeinbytesofbuffer refintlpcConnections//numberofconnectionswrittentobuffer ); [DllImport("rasapi32.dll",CharSetCharSet=CharSet.Auto)] internalstaticexternuintRasGetConnectionStatistics( IntPtrhRasConn,//handletotheconnection [In,Out]RasStatslpStatistics//buffertoreceivestatistics ); [DllImport("rasapi32.dll",CharSetCharSet=CharSet.Auto)] publicexternstaticuintRasHangUp( IntPtrhrasconn//handletotheRASconnectiontohangup ); [DllImport("rasapi32.dll",CharSetCharSet=CharSet.Auto)] publicexternstaticuintRasEnumEntries( stringreserved,//reserved,mustbeNULL stringlpszPhonebook,//pointertofullpathand //filenameofphone-bookfile [In,Out]RasEntryName[]lprasentryname,//buffertoreceive //phone-bookentries refintlpcb,//sizeinbytesofbuffer outintlpcEntries//numberofentrieswritten //tobuffer ); [DllImport("wininet.dll",CharSetCharSet=CharSet.Auto)] publicexternstaticintInternetDial( IntPtrhwnd, [In]stringlpszConnectoid, uintdwFlags, refintlpdwConnection, uintdwReserved ); publicRAS() { } } publicenumDEL_CACHE_TYPE//要删除的类型。 { File,//表示internet临时文件 Cookie//表示Cookie }; publicclassRASDisplay { [DllImport("wininet.dll",CharSetCharSet=CharSet.Auto)] publicstaticexternboolDeleteUrlCacheEntry( DEL_CACHE_TYPEtype ); privatestringm_duration; privatestringm_ConnectionName; privatestring[]m_ConnectionNames; privatedoublem_TX; privatedoublem_RX; privateboolm_connected; privateIntPtrm_ConnectedRasHandle; RasStatsstatus=newRasStats(); publicRASDisplay() { m_connected=true; RASlpras=newRAS(); RASCONNlprasConn=newRASCONN(); lprasConn.dwSize=Marshal.SizeOf(typeof(RASCONN)); lprasConn.hrasconn=IntPtr.Zero; intlpcb=0; intlpcConnections=0; intnRet=0; lpcb=Marshal.SizeOf(typeof(RASCONN)); nRet=RAS.RasEnumConnections(reflprasConn,reflpcb,ref lpcConnections); if(nRet!=0) { m_connected=false; return; } if(lpcConnections>0) { //for(inti=0;i 1) { names=newRasEntryName[lpNames]; for(inti=0;i 0) { for(inti=0;i 关于C#中怎么实现ADSL自动拨号问题的解答就分享到这里了,希望以上内容可以对大家有一定的帮助,如果你还有很多疑惑没有解开,可以关注创新互联行业资讯频道了解更多相关知识。
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