Encapsulation class:
using System;
using ;
public struct RASCONN
{
public int dwSize;
public IntPtr hrasconn;
[MarshalAs(, SizeConst = 257)]
public string szEntryName;
[MarshalAs(, SizeConst = 17)]
public string szDeviceType;
[MarshalAs(, SizeConst = 129)]
public string szDeviceName;
}
[StructLayout(, CharSet = )]
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(, CharSet = )]
public struct RasEntryName
{
public int dwSize;
//[MarshalAs(,SizeConst=(int)RasFieldSizeConstants.RAS_MaxEntryName + 1)]
public string szEntryName;
//#if WINVER5
// public int dwFlags;
// [MarshalAs(,SizeConst=260+1)]
// public string szPhonebookPath;
//#endif
}
public class RAS
{
[DllImport("", 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("", CharSet = )]
internal static extern uint RasGetConnectionStatistics(
IntPtr hRasConn, // handle to the connection
[In, Out]RasStats lpStatistics // buffer to receive statistics
);
[DllImport("", CharSet = )]
public extern static uint RasHangUp(
IntPtr hrasconn // handle to the RAS connection to hang up
);
[DllImport("", CharSet = )]
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("", CharSet = )]
public extern static int InternetDial(
IntPtr hwnd,
[In]string lpszConnectoid,
uint dwFlags,
ref int lpdwConnection,
uint dwReserved
);
public RAS()
{
}
}
public enum DEL_CACHE_TYPE //The type to be deleted.{
File,// means temporary internet file Cookie // means cookies}
public class RASDisplay
{
[DllImport("", CharSet = )]
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();
= (typeof(RASCONN));
= ;
int lpcb = 0;
int lpcConnections = 0;
int nRet = 0;
lpcb = (typeof(RASCONN));
nRet = (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 = ;
(, stats);
m_ConnectionName = ;
int Hours = 0;
int Minutes = 0;
int Seconds = 0;
Hours = (( / 1000) / 3600);
Minutes = (( / 1000) / 60) - (Hours * 60);
Seconds = (( / 1000)) - (Minutes * 60) - (Hours * 3600);
m_duration = Hours + " hours " + Minutes + " minutes " + Seconds + " secs";
m_TX = ;
m_RX = ;
//}
}
else
{
m_connected = false;
}
int lpNames = 1;
int entryNameSize = 0;
int lpSize = 0;
RasEntryName[] names = null;
entryNameSize = (typeof(RasEntryName));
lpSize = lpNames * entryNameSize;
names = new RasEntryName[lpNames];
names[0].dwSize = entryNameSize;
uint retval = (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 < ; i++)
{
names[i].dwSize = entryNameSize;
}
retval = (null, null, names, ref lpSize, out lpNames);
}
m_ConnectionNames = new string[];
if (lpNames > 0)
{
for (int i = 0; i < ; 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 = (, Connection, INTERNET_AUTO_DIAL_UNATTENDED, ref temp, 0);
return retVal;
}
public void Disconnect()
{
(m_ConnectedRasHandle);
}
}
Calling method:
RASDisplay ras = new RASDisplay();
();//Disconnect("ADSL");//Re-dial
Note: When you are disconnected, if you do not want the confirmation dialog box to appear, please follow the steps below to set it:
1. Right-click "Online Neighbor"--Properties;
2. In the "Broadband Connection" window that appears later, right-click the broadband connection and click "Properties";
3. In the properties dialog box that appears afterwards, click "Options";
4. Remove the checkmark before the subsequent "prompt name, password, certificate, etc." and click "OK" to exit;
The above C# method to realize automatic network disconnection and dialing of ADSL (suitable for dialing users) is all the content I share with you. I hope you can give you a reference and I hope you can support me more.