ADSL自动拨号类,前提是在系统中已经有了一个宽带拨号连接 调用代码: RASDisplay ras = new RASDisplay(); ras.Disconnect();//断线 ras.Connect("adsl");//拨号 using System; using System.Runtime.InteropServices; public struct RASCONN { public int dwSize; public IntPtr hrasconn; [MarshalAs(UnmanagedType.ByValTStr, SizeConst=257)] public string szEntryName; [MarshalAs(UnmanagedType.ByValTStr, SizeConst=17)] public string szDeviceType; [MarshalAs(UnmanagedType.ByValTStr, SizeConst=129)] public string szDeviceName; }[StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)] public struct RasStats { public int dwSize; public int dwBytesXmited; public int dwBytesRcved; public int dwFramesXmited; public int dwFramesRcved; public int dwCrcErr; public int dwTimeoutErr; public int dwAlignmentErr; public int dwHardwareOverrunErr; public int dwFramingErr; public int dwBufferOverrunErr; public int dwCompressionRatioIn; public int dwCompressionRatioOut; public int dwBps; public int dwConnectionDuration; }[StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)] public struct RasEntryName { public int dwSize; //[MarshalAs(UnmanagedType.ByValTStr,SizeConst=(int)RasFieldSizeConstants.RAS_MaxEntryName + 1)] public string szEntryName; //#if WINVER5 // public int dwFlags; // [MarshalAs(UnmanagedType.ByValTStr,SizeConst=260+1)] // public string szPhonebookPath; //#endif } public class RAS{ [DllImport("Rasapi32.dll", EntryPoint="RasEnumConnectionsA", SetLastError=true)] internal static extern int RasEnumConnections ( ref RASCONN lprasconn, // buffer to receive connections data ref int lpcb, // size in bytes of buffer ref int lpcConnections // number of connections written to buffer ); [DllImport("rasapi32.dll",CharSet=CharSet.Auto)] internal static extern uint RasGetConnectionStatistics( IntPtr hRasConn, // handle to the connection [In,Out]RasStats lpStatistics // buffer to receive statistics ); [DllImport("rasapi32.dll",CharSet=CharSet.Auto)] public extern static uint RasHangUp( IntPtr hrasconn // handle to the RAS connection to hang up ); [DllImport("rasapi32.dll",CharSet=CharSet.Auto)] public extern static uint RasEnumEntries ( string reserved, // reserved, must be NULL string lpszPhonebook, // pointer to full path and // file name of phone-book file [In,Out]RasEntryName[] lprasentryname, // buffer to receive // phone-book entries ref int lpcb, // size in bytes of buffer out int lpcEntries // number of entries written // to buffer ); [DllImport("wininet.dll",CharSet=CharSet.Auto)] public extern static int InternetDial( IntPtr hwnd, [In]string lpszConnectoid, uint dwFlags, ref int lpdwConnection, uint dwReserved ); public RAS() { } } public enum DEL_CACHE_TYPE //要删除的类型。 { File,//表示internet临时文件 Cookie //表示Cookie }; public class RASDisplay { [DllImport("wininet.dll",CharSet=CharSet.Auto)] public static extern bool DeleteUrlCacheEntry( DEL_CACHE_TYPE type ); private string m_duration; private string m_ConnectionName; private string[] m_ConnectionNames; private double m_TX; private double m_RX; private bool m_connected; private IntPtr m_ConnectedRasHandle; RasStats status = new RasStats(); public RASDisplay() { m_connected = true; RAS lpras = new RAS(); RASCONN lprasConn = new RASCONN(); lprasConn.dwSize = Marshal.SizeOf(typeof(RASCONN)); lprasConn.hrasconn = IntPtr.Zero; int lpcb = 0; int lpcConnections = 0; int nRet = 0; lpcb = Marshal.SizeOf(typeof(RASCONN)); nRet = RAS.RasEnumConnections(ref lprasConn, ref lpcb, ref lpcConnections); if(nRet != 0) { m_connected = false; return; } if(lpcConnections > 0) { //for (int i = 0; i < lpcConnections; i++) //{ RasStats stats = new RasStats(); m_ConnectedRasHandle = lprasConn.hrasconn; RAS.RasGetConnectionStatistics(lprasConn.hrasconn, stats); m_ConnectionName = lprasConn.szEntryName; int Hours = 0; int Minutes = 0; int Seconds = 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; } int lpNames = 1; int entryNameSize = 0; int lpSize = 0; RasEntryName[] names = null; entryNameSize=Marshal.SizeOf(typeof(RasEntryName)); lpSize=lpNames*entryNameSize; names=new RasEntryName[lpNames]; names[0].dwSize=entryNameSize; uint retval = RAS.RasEnumEntries(null,null,names,ref lpSize,out lpNames); //if we have more than one connection, we need to do it again if(lpNames > 1) { names=new RasEntryName[lpNames]; for(int i=0;i<names.Length;i++) { names[i].dwSize=entryNameSize; } retval = RAS.RasEnumEntries(null,null,names,ref lpSize,out lpNames); } m_ConnectionNames = new string[names.Length]; if(lpNames>0) { for(int i=0;i<names.Length;i++) { m_ConnectionNames[i] = names[i].szEntryName; } } } public string Duration { get { return m_connected ? m_duration : ""; } } public string[] Connections { get { return m_ConnectionNames; } } public double BytesTransmitted { get { return m_connected ? m_TX : 0; } } public double BytesReceived { get { return m_connected ? m_RX : 0; } } public string ConnectionName { get { return m_connected ? m_ConnectionName : ""; } } public bool IsConnected { get { return m_connected; } } public int Connect(string Connection) { int temp = 0; uint INTERNET_AUTO_DIAL_UNATTENDED = 2; int retVal = RAS.InternetDial(IntPtr.Zero,Connection,INTERNET_AUTO_DIAL_UNATTENDED,ref temp,0); return retVal; } public void Disconnect() { RAS.RasHangUp(m_ConnectedRasHandle); } }
你上网找一下163拨号
先建一个ADSL拨号(同163拨号一样建的方式)
然后就用API调就行了。网上一大把VB的代码。改一下就行了。
调用代码:
RASDisplay ras = new RASDisplay();
ras.Disconnect();//断线
ras.Connect("adsl");//拨号
using System;
using System.Runtime.InteropServices;
public struct RASCONN
{
public int dwSize;
public IntPtr hrasconn;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=257)]
public string szEntryName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=17)]
public string szDeviceType;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=129)]
public string szDeviceName;
}[StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
public struct RasStats
{
public int dwSize;
public int dwBytesXmited;
public int dwBytesRcved;
public int dwFramesXmited;
public int dwFramesRcved;
public int dwCrcErr;
public int dwTimeoutErr;
public int dwAlignmentErr;
public int dwHardwareOverrunErr;
public int dwFramingErr;
public int dwBufferOverrunErr;
public int dwCompressionRatioIn;
public int dwCompressionRatioOut;
public int dwBps;
public int dwConnectionDuration;
}[StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
public struct RasEntryName
{
public int dwSize;
//[MarshalAs(UnmanagedType.ByValTStr,SizeConst=(int)RasFieldSizeConstants.RAS_MaxEntryName + 1)]
public string szEntryName;
//#if WINVER5
// public int dwFlags;
// [MarshalAs(UnmanagedType.ByValTStr,SizeConst=260+1)]
// public string szPhonebookPath;
//#endif
}
public class RAS{
[DllImport("Rasapi32.dll", EntryPoint="RasEnumConnectionsA",
SetLastError=true)] internal static extern int RasEnumConnections
(
ref RASCONN lprasconn, // buffer to receive connections data
ref int lpcb, // size in bytes of buffer
ref int lpcConnections // number of connections written to buffer
);
[DllImport("rasapi32.dll",CharSet=CharSet.Auto)]
internal static extern uint RasGetConnectionStatistics(
IntPtr hRasConn, // handle to the connection
[In,Out]RasStats lpStatistics // buffer to receive statistics
);
[DllImport("rasapi32.dll",CharSet=CharSet.Auto)]
public extern static uint RasHangUp(
IntPtr hrasconn // handle to the RAS connection to hang up
); [DllImport("rasapi32.dll",CharSet=CharSet.Auto)]
public extern static uint RasEnumEntries (
string reserved, // reserved, must be NULL
string lpszPhonebook, // pointer to full path and
// file name of phone-book file
[In,Out]RasEntryName[] lprasentryname, // buffer to receive
// phone-book entries
ref int lpcb, // size in bytes of buffer
out int lpcEntries // number of entries written
// to buffer
); [DllImport("wininet.dll",CharSet=CharSet.Auto)]
public extern static int InternetDial(
IntPtr hwnd,
[In]string lpszConnectoid,
uint dwFlags,
ref int lpdwConnection,
uint dwReserved
); public RAS()
{ }
}
public enum DEL_CACHE_TYPE //要删除的类型。
{
File,//表示internet临时文件
Cookie //表示Cookie
};
public class RASDisplay
{
[DllImport("wininet.dll",CharSet=CharSet.Auto)]
public static extern bool DeleteUrlCacheEntry(
DEL_CACHE_TYPE type
);
private string m_duration;
private string m_ConnectionName;
private string[] m_ConnectionNames;
private double m_TX;
private double m_RX;
private bool m_connected;
private IntPtr m_ConnectedRasHandle; RasStats status = new RasStats();
public RASDisplay()
{
m_connected = true; RAS lpras = new RAS();
RASCONN lprasConn = new RASCONN(); lprasConn.dwSize = Marshal.SizeOf(typeof(RASCONN));
lprasConn.hrasconn = IntPtr.Zero; int lpcb = 0;
int lpcConnections = 0;
int nRet = 0;
lpcb = Marshal.SizeOf(typeof(RASCONN));
nRet = RAS.RasEnumConnections(ref lprasConn, ref lpcb, ref
lpcConnections);
if(nRet != 0) {
m_connected = false;
return; } if(lpcConnections > 0)
{
//for (int i = 0; i < lpcConnections; i++) //{
RasStats stats = new RasStats(); m_ConnectedRasHandle = lprasConn.hrasconn;
RAS.RasGetConnectionStatistics(lprasConn.hrasconn, stats);
m_ConnectionName = lprasConn.szEntryName; int Hours = 0;
int Minutes = 0;
int Seconds = 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;
}
int lpNames = 1;
int entryNameSize = 0;
int lpSize = 0;
RasEntryName[] names = null; entryNameSize=Marshal.SizeOf(typeof(RasEntryName));
lpSize=lpNames*entryNameSize; names=new RasEntryName[lpNames];
names[0].dwSize=entryNameSize; uint retval = RAS.RasEnumEntries(null,null,names,ref lpSize,out lpNames); //if we have more than one connection, we need to do it again
if(lpNames > 1)
{
names=new RasEntryName[lpNames];
for(int i=0;i<names.Length;i++)
{
names[i].dwSize=entryNameSize;
} retval = RAS.RasEnumEntries(null,null,names,ref lpSize,out lpNames); }
m_ConnectionNames = new string[names.Length];
if(lpNames>0)
{
for(int i=0;i<names.Length;i++)
{ m_ConnectionNames[i] = names[i].szEntryName; }
}
} public string Duration
{
get
{
return m_connected ? m_duration : "";
}
} public string[] Connections
{
get
{
return m_ConnectionNames;
}
} public double BytesTransmitted
{
get
{
return m_connected ? m_TX : 0;
}
}
public double BytesReceived
{
get
{
return m_connected ? m_RX : 0; }
}
public string ConnectionName
{
get
{
return m_connected ? m_ConnectionName : "";
}
}
public bool IsConnected
{
get
{
return m_connected;
}
} public int Connect(string Connection)
{
int temp = 0;
uint INTERNET_AUTO_DIAL_UNATTENDED = 2;
int retVal = RAS.InternetDial(IntPtr.Zero,Connection,INTERNET_AUTO_DIAL_UNATTENDED,ref temp,0);
return retVal;
}
public void Disconnect()
{
RAS.RasHangUp(m_ConnectedRasHandle);
}
}