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("Ra<ahrefahref="http://dev.21tx.com/corp/sap/"target="_blank">SAP a>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
;i++) - //{
- RasStatsstats=newRasStats();
- m_ConnectedRasHandle=lprasConn.hrasconn;
- RAS.RasGetConnectionStatistics(lprasConn.hrasconn,stats);
- m_ConnectionName=lprasConn.szEntryName;
- intHours=0;
- intMinutes=0;
- intSeconds=0;
- Hours=((stats.dwConnectionDuration/1000)/3600);
- Minutes=((stats.dwConnectionDuration/1000)/60)-(Hours*60);
- Seconds=((stats.dwConnectionDuration/1000))-(Minutes*60)
- -(Hours*3600);
- m_duration=Hours+"hours"+Minutes+"minutes"
- +Seconds+"secs";
- m_TX=stats.dwBytesXmited;
- m_RX=stats.dwBytesRcved;
- //}
- }
- else
- {
- m_connected=false;
- }
- intlpNames=1;
- intentryNameSize=0;
- intlpSize=0;
- RasEntryName[]names=null;
- entryNameSize=Marshal.SizeOf(typeof(RasEntryName));
- lpSize=lpNames*entryNameSize;
- names=newRasEntryName[lpNames];
- names[0].dwSize=entryNameSize;
- uintretval=RAS.RasEnumEntries(null,null,names,reflpSize,outlpNames);
- //ifwehavemorethanoneconnection,weneedtodoitagain
- if(lpNames>1)
- {
- names=newRasEntryName[lpNames];
- for(inti=0;i
;i++) - {
- names[i].dwSize=entryNameSize;
- }
- retval=RAS.RasEnumEntries(null,null,names,reflpSize,outlpNames);
- }
- m_ConnectionNames=newstring[names.Length];
- if(lpNames>0)
- {
- for(inti=0;i
;i++) - {
- m_ConnectionNames[i]=names[i].szEntryName;
- }
- }
- }
- publicstringDuration
- {
- get
- {
- returnm_connected?m_duration:"";
- }
- }
- publicstring[]Connections
- {
- get
- {
- returnm_ConnectionNames;
- }
- }
- publicdoubleBytesTransmitted
- {
- get
- {
- returnm_connected?m_TX:0;
- }
- }
- publicdoubleBytesReceived
- {
- get
- {
- returnm_connected?m_RX:0;
- }
- }
- publicstringConnectionName
- {
- get
- {
- returnm_connected?m_ConnectionName:"";
- }
- }
- publicboolIsConnected
- {
- get
- {
- returnm_connected;
- }
- }
- publicintConnect(stringConnection)
- {
- inttemp=0;
- uintINTERNET_AUTO_DIAL_UNATTENDED=2;
- intretVal=RAS.InternetDial(IntPtr.Zero,Connection,INTERNET_AUTO_DIAL_UNATTENDED,
- reftemp,0);
- returnretVal;
- }
- publicvoidDisconnect()
- {
- RAS.RasHangUp(m_ConnectedRasHandle);
- }
- }
以上介绍C# ADSL自动拨号。
新闻名称:C#实现ADSL自动拨号
新闻来源:http://www.shufengxianlan.com/qtweb/news0/437450.html
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