pinvoke.net: Edit: coredll.RasGetConnectStatus

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Summary: This function retrieves information on the current status of the specified remote access connection

!!!!C# Signature:
 [DllImport("coredll.dll", SetLastError=true)]
 public static extern int RasGetConnectStatus(IntPtr hrasconn, ref RASCONNSTATUS lprasconnstatus);
 
!!!!User-Defined Types:
        const int RASCS_PAUSED = 0x1000;
        const int RASCS_DONE = 0x2000;
        const int RAS_MaxDeviceType = 16;
        const int RAS_MaxDeviceName = 128;

internal enum RASCONNSTATE
        {
            RASCS_OpenPort = 0,
            RASCS_PortOpened,
            RASCS_ConnectDevice,
            RASCS_DeviceConnected,
            RASCS_AllDevicesConnected,
            RASCS_Authenticate,
            RASCS_AuthNotify,
            RASCS_AuthRetry,
            RASCS_AuthCallback,
            RASCS_AuthChangePassword,
            RASCS_AuthProject,
            RASCS_AuthLinkSpeed,
            RASCS_AuthAck,
            RASCS_ReAuthenticate,
            RASCS_Authenticated,
            RASCS_PrepareForCallback,
            RASCS_WaitForModemReset,
            RASCS_WaitForCallback,
            RASCS_Projected,
            RASCS_Interactive = RASCS_PAUSED,
            RASCS_RetryAuthentication,
            RASCS_CallbackSetByCaller,
            RASCS_PasswordExpired,
            RASCS_Connected = RASCS_DONE,
            RASCS_Disconnected 
          }

internal struct RASCONNSTATUS
        {
            public UInt32 dwSize;
            public RASCONNSTATE rasconnstate;
            public UInt32 dwError;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = RAS_MaxDeviceType + 1)]
            public string szDeviceType;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = RAS_MaxDeviceName + 1)]
            public string szDeviceName;
        }
!!!!Notes:
function info on msdn at http://msdn.microsoft.com/en-us/library/ms897100.aspx

!!!!Sample Code:
        public static RASCONNSTATUS GetConnectStatus(IntPtr hrasconn)
        {
            RASCONNSTATUS status = new RASCONNSTATUS();
            status.dwSize = (UInt32)Marshal.SizeOf(status);
            RasGetConnectStatus(hrasconn, ref status);
            return status;
        }

Documentation: RasGetConnectStatus@msdn on MSDN