public void Connect(String connectionName, String userName, String password)
{
var rdp = new RASDIALPARAMS();
rdp.dwSize = Marshal.SizeOf(rdp);
rdp.szEntryName = connectionName;
rdp.szUserName = userName;
rdp.szPassword = password;
UInt32 result = RasNativeMethods.RasDial(null, null, rdp, 0xFFFFFFFF, null, ref _connection);
if (result != 0)
{
throw new RasException(result);
}
}
public static extern UInt32 RasDial([In] RASDIALEXTENSIONS lpRasDialExtensions, [In] String lpszPhonebook, [In] RASDIALPARAMS lpRasDialParams, uint dwNotifierType, Delegate lpvNotifier, ref IntPtr lphRasConn);