←Select platform

RemoveRestriction Method

Summary

Removes the restriction at the specified index from the list of restrictions.

Syntax

C++

[DispIdAttribute(9)] 
void RemoveRestriction(  
   int index 
)

  
<DispIdAttribute(9)> 
Sub RemoveRestriction( _ 
   ByVal index As Integer _ 
)

[DispIdAttribute(9)] 
void RemoveRestriction(  
   int index 
)

Parameters

index
Yhe zero-based index of the restriction to be removed from the list of restrictions. The list of restrictions is shifted up starting from the index of the removed restriction.

Remarks

A restriction means that connections are not accepted from the specified IP address.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
public bool _result = false; 
public CaptureAndPlayCtrlForm _serverAndClient = new CaptureAndPlayCtrlForm(); 
 
CaptureCtrl _captureCtrl; 
PlayCtrl _playCtrl; 
LMNetMux _pMux; 
LMNetSnk _pSink; 
 
const string _networkUrl = @"ltsf://127.0.0.1:27015"; // network stream url 
const string _networkAuthenticatedUrl = @"ltsf://User1:P99999@127.0.0.1:27015"; // network stream url 
const string TestMessage = "LEAD NETWORK"; 
 
public void RequireLoginExample() 
{ 
   // reference the capture control 
   _captureCtrl = _serverAndClient.CaptureCtrl; 
 
   // reference the play control 
   _playCtrl = _serverAndClient.PlayCtrl; 
 
   try 
   { 
      // try to find a video camera 
      if (_captureCtrl.VideoDevices["Logitech"] == null) 
         throw new Exception("No Logitech video device available"); 
 
      _captureCtrl.VideoDevices["Logitech"].Selected = true; 
 
      // select a video compressor 
      _captureCtrl.VideoCompressors.Mpeg4.Selected = true; 
 
      // set the target output file 
      _captureCtrl.TargetFormat = TargetFormatType.NET; 
      _captureCtrl.TargetFile = _networkUrl; 
 
      if (_captureCtrl.IsModeAvailable(CaptureMode.Video)) 
      { 
         // here we will only capture 15 seconds for this example. 
         // in a real application, you would not normally want to  
         // set the time limit for capture. 
         _captureCtrl.TimeLimit = 15; 
         _captureCtrl.UseTimeLimit = true; 
 
         // enable preview 
         _captureCtrl.Preview = true; 
 
         // subscribe to the started event for this example 
         // we will connect a client after the capture starts 
         _captureCtrl.Started += new EventHandler(CaptureCtrl_Started); 
 
         // subcribe to the media event for the player 
         _playCtrl.MediaEvent += new MediaEventHandler(PlayCtrl_MediaEvent); 
 
         // ready the capture graph in order to get the LNMetMux instance 
         _captureCtrl.ReadyCapture(CaptureMode.Video); 
 
         // get the network multiplexer reference 
         _pMux = _captureCtrl.GetSubObject(CaptureObject.TargetFilter) as LMNetMux; 
 
         if (_pMux != null) 
         { 
            // set some mux settings 
            _pMux.LiveSource = true; 
         } 
 
         // get the network sink reference 
         _pSink = _captureCtrl.GetSubObject(CaptureObject.Sink) as LMNetSnk; 
 
         if (_pSink != null) 
         { 
            // set some mux settings 
            _pSink.RequireLogin = true; 
            _pSink.UseEncryption = LMNetSnkLib.NetSnk_Encryption.NetSnk_Encryption_None; 
 
            // clear all user registrations 
            _pSink.RemoveAllUsers(); 
 
            // setup up user logins 
            AddModifyUsers(); 
 
            // enumeration users 
            EnumerateUsers(); 
 
            // add a restriction 
            AddRestriction(); 
 
            // test timer for connection checking 
            _serverAndClient.TestTimer.Interval = 10000; 
            _serverAndClient.TestTimer.Start(); 
            _serverAndClient.TestTimer.Tick += new EventHandler(ConnectionChecker); 
         } 
 
         // start capture 
         _captureCtrl.StartCapture(CaptureMode.Video); 
 
         // we'll loop on the state and pump messages for this example. 
         // but you should not need to if running from a Windows Forms application. 
         while (_captureCtrl.State == CaptureState.Running 
               || _playCtrl.State == PlayState.Running) 
         { 
            Application.DoEvents(); 
         } 
 
         // release the mux and demux COM objects 
         if (_pMux != null) 
            Marshal.ReleaseComObject(_pMux); 
 
         if (_pSink != null) 
            Marshal.ReleaseComObject(_pSink); 
      } 
   } 
   catch (Exception ex) 
   { 
      _result = false; 
   } 
} 
 
private void AddModifyUsers() 
{ 
   // early out if we could not get the sink interface 
   if (_pSink == null) 
      return; 
 
   // get the current connection list version 
   int oldVers = _pSink.ConnectionVersion; 
 
   // add a user 
   _pSink.AddUser("User1", "P12345"); 
 
   // get the current connection list version 
   int newVers = _pSink.ConnectionVersion; 
 
   // add another user 
   _pSink.AddUser("User2", "P67890"); 
 
   // find a user 
   int user1Id = _pSink.FindUser("User1"); 
 
   // set user 1's password -- was set above in the AddUser call 
   // but we will change it here for demonstration purposes 
   _pSink.SetPassword(user1Id, "P99999"); 
 
   // remove User2 from the registered users list  
   int user2Id = _pSink.FindUser("User2"); 
   _pSink.RemoveUser(user2Id); 
} 
 
private void EnumerateUsers() 
{ 
   // get the current user count 
   int userCount = _pSink.UserCount; 
 
   // verify that we have two users now 
   _result = (userCount == 1); 
 
   // demostrate enumeration registered users 
   for (int i = 0; i < userCount; i++) 
   { 
      // do something with user names and passwords 
      string userName = _pSink.GetUsername(i); 
      string passWord = _pSink.GetPassword(i); 
   } 
 
} 
 
private void AddRestriction() 
{ 
   // add a restriction to the client which has the IP = 10.0.0.5 
   // this will not allow a connection from this address.  
 
   // get number of restrictions 
   int oldRestCount = _pSink.RestrictionCount; 
 
   // Number of restrictions we have.  
   int restrictCount = _pSink.AddRestriction("10.0.0.5"); 
 
   // get number of restrictions 
   int newRestCount = _pSink.RestrictionCount; 
 
   // verify that we have a new restriction count 
   _result &= (oldRestCount != newRestCount); 
 
   // enumeration restrictions (demonstration purposes) 
   for (int i = 0; i < restrictCount; i++) 
   { 
      string restAddress = _pSink.GetRestriction(i); 
      // do something with Restriction 
   } 
 
   // find our restriction we added above 
   int restriction = _pSink.FindRestriction("10.0.0.5"); 
 
   // remove it 
   _pSink.RemoveRestriction(restriction); 
 
   // remove all restrictions (demonstration purposes) 
   _pSink.RemoveAllRestrictions(); 
} 
 
void CaptureCtrl_Started(object sender, EventArgs e) 
{ 
   StartClient(); 
} 
 
private void StartClient() 
{ 
   try 
   { 
      // connect a client 
      _playCtrl.SourceFile = _networkAuthenticatedUrl; 
   } 
   catch (Exception ex) 
   { 
      _result = false; 
      Console.WriteLine("Player (Client) Exception: {0}", ex.Message); 
   } 
} 
 
void ConnectionChecker(object sender, EventArgs e) 
{ 
   _serverAndClient.TestTimer.Stop(); 
 
   // get number of users connected to the server 
   int connCount = _pSink.ConnectionCount; 
 
   // get the first connection (demonstration purposes) 
   ILMNetSnkConnection pcon = _pSink.FindConnection(1); 
   // release it -- it is a COM object you know! 
   Marshal.ReleaseComObject(pcon); 
 
   // get the first connection 
   pcon = _pSink.FirstConnection; 
 
   // check all connections with the server 
   while (pcon != null) 
   { 
      ILMNetSnkConnection pnext = pcon.NextConnection; 
      long id = pcon.ID; 
      string userName = pcon.Username; 
      string connAddr = pcon.Address; 
 
      // check if connection is enabled or not 
      // it should be, we just enabled it above 
      bool enabled = pcon.Enabled; 
 
      // is it connected 
      bool connected = pcon.Connected; 
 
      // check if this connection is disabled 
      // and disconnect it if so 
      if (enabled == false) 
      { 
         // close this connection 
         pcon.Close(); 
      } 
      Marshal.ReleaseComObject(pcon); 
      pcon = pnext; 
   } 
 
   // close all connections (demonstration purposes) 
   _pSink.CloseAll(); 
 
   _serverAndClient.TestTimer.Start(); 
} 
 
private void PlayCtrl_MediaEvent(object sender, MediaEventArgs e) 
{ 
   if (e.eventCode == MediaEventCode.EC_COMPLETE) 
      _result &= true; 
}

Imports Leadtools 
Imports Leadtools.Multimedia 
Imports LeadtoolsMultimediaExamples.Fixtures 
 
Public _result As Boolean = False 
Public _serverAndClient As CaptureAndPlayCtrlForm = New CaptureAndPlayCtrlForm() 
 
Private _captureCtrl As CaptureCtrl 
Private _playCtrl As PlayCtrl 
Private _pMux As LMNetMux 
Private _pSink As LMNetSnk 
 
Private Const _networkUrl As String = "ltsf://127.0.0.1:27015" ' network stream url 
Private Const _networkAuthenticatedUrl As String = "ltsf://User1:P99999@127.0.0.1:27015" ' network stream url 
Private Const TestMessage As String = "LEAD NETWORK" 
 
Public Sub RequireLoginExample() 
   ' reference the capture control 
   _captureCtrl = _serverAndClient.CaptureCtrl 
 
   ' reference the play control 
   _playCtrl = _serverAndClient.PlayCtrl 
 
   Try 
      ' try to find a video camera 
      If _captureCtrl.VideoDevices("Logitech") Is Nothing Then 
         Throw New Exception("No Logitech video device available") 
      End If 
 
      _captureCtrl.VideoDevices("Logitech").Selected = True 
 
      ' select a video compressor 
      _captureCtrl.VideoCompressors.Mpeg4.Selected = True 
 
      ' set the target output file 
      _captureCtrl.TargetFormat = TargetFormatType.NET 
      _captureCtrl.TargetFile = _networkUrl 
 
      If _captureCtrl.IsModeAvailable(CaptureMode.Video) Then 
         ' here we will only capture 15 seconds for this example. 
         ' in a real application, you would not normally want to  
         ' set the time limit for capture. 
         _captureCtrl.TimeLimit = 15 
         _captureCtrl.UseTimeLimit = True 
 
         ' enable preview 
         _captureCtrl.Preview = True 
 
         ' subscribe to the started event for this example 
         ' we will connect a client after the capture starts 
         AddHandler _captureCtrl.Started, AddressOf CaptureCtrl_Started 
 
         ' subscribe to the media event for the player 
         AddHandler _playCtrl.MediaEvent, AddressOf PlayCtrl_MediaEvent 
 
         ' ready the capture graph in order to get the LNMetMux instance 
         _captureCtrl.ReadyCapture(CaptureMode.Video) 
 
         ' get the network multiplexer reference 
         _pMux = TryCast(_captureCtrl.GetSubObject(CaptureObject.TargetFilter), LMNetMux) 
 
         If Not _pMux Is Nothing Then 
            ' set some mux settings 
            _pMux.LiveSource = True 
         End If 
 
         ' get the network sink reference 
         _pSink = TryCast(_captureCtrl.GetSubObject(CaptureObject.Sink), LMNetSnk) 
 
         If Not _pSink Is Nothing Then 
            ' set some mux settings 
            _pSink.RequireLogin = True 
            _pSink.UseEncryption = LMNetSnkLib.NetSnk_Encryption.NetSnk_Encryption_None 
 
            ' clear all user registrations 
            _pSink.RemoveAllUsers() 
 
            ' setup up user logins 
            AddModifyUsers() 
 
            ' enumeration users 
            EnumerateUsers() 
 
            ' add a restriction 
            AddRestriction() 
 
            ' test timer for connection checking 
            _serverAndClient.TestTimer.Interval = 10000 
            _serverAndClient.TestTimer.Start() 
            AddHandler _serverAndClient.TestTimer.Tick, AddressOf ConnectionChecker 
         End If 
 
         ' start capture 
         _captureCtrl.StartCapture(CaptureMode.Video) 
 
         ' we'll loop on the state and pump messages for this example. 
         ' but you should not need to if running from a Windows Forms application. 
         Do While _captureCtrl.State = CaptureState.Running OrElse _playCtrl.State = PlayState.Running 
            Application.DoEvents() 
         Loop 
 
         ' release the mux and demux COM objects 
         If Not _pMux Is Nothing Then 
            Marshal.ReleaseComObject(_pMux) 
         End If 
 
         If Not _pSink Is Nothing Then 
            Marshal.ReleaseComObject(_pSink) 
         End If 
      End If 
   Catch ex As Exception 
      _result = False 
   End Try 
End Sub 
 
Private Sub AddModifyUsers() 
   ' early out if we could not get the sink interface 
   If _pSink Is Nothing Then 
      Return 
   End If 
 
   ' get the current connection list version 
   Dim oldVers As Integer = _pSink.ConnectionVersion 
 
   ' add a user 
   _pSink.AddUser("User1", "P12345") 
 
   ' get the current connection list version 
   Dim newVers As Integer = _pSink.ConnectionVersion 
 
   ' add another user 
   _pSink.AddUser("User2", "P67890") 
 
   ' find a user 
   Dim user1Id As Integer = _pSink.FindUser("User1") 
 
   ' set user 1's password -- was set above in the AddUser call 
   ' but we will change it here for demonstration purposes 
   _pSink.SetPassword(user1Id, "P99999") 
 
   ' remove User2 from the registered users list  
   Dim user2Id As Integer = _pSink.FindUser("User2") 
   _pSink.RemoveUser(user2Id) 
End Sub 
 
Private Sub EnumerateUsers() 
   ' get the current user count 
   Dim userCount As Integer = _pSink.UserCount 
 
   ' verify that we have two users now 
   _result = (userCount = 1) 
 
   ' demonstrate enumeration registered users 
   Dim i As Integer = 0 
   Do While i < userCount 
      ' do something with user names and passwords 
      Dim userName As String = _pSink.GetUsername(i) 
      Dim passWord As String = _pSink.GetPassword(i) 
      i += 1 
   Loop 
 
End Sub 
 
Private Sub AddRestriction() 
   ' add a restriction to the client which has the IP = 10.0.0.5 
   ' this will not allow a connection from this address.  
 
   ' get number of restrictions 
   Dim oldRestCount As Integer = _pSink.RestrictionCount 
 
   ' Number of restrictions we have.  
   Dim restrictCount As Integer = _pSink.AddRestriction("10.0.0.5") 
 
   ' get number of restrictions 
   Dim newRestCount As Integer = _pSink.RestrictionCount 
 
   ' verify that we have a new restriction count 
   _result = _result And (oldRestCount <> newRestCount) 
 
   ' enumeration restrictions (demonstration purposes) 
   Dim i As Integer = 0 
   Do While i < restrictCount 
      Dim restAddress As String = _pSink.GetRestriction(i) 
      ' do something with Restriction 
      i += 1 
   Loop 
 
   ' find our restriction we added above 
   Dim restriction As Integer = _pSink.FindRestriction("10.0.0.5") 
 
   ' remove it 
   _pSink.RemoveRestriction(restriction) 
 
   ' remove all restrictions (demonstration purposes) 
   _pSink.RemoveAllRestrictions() 
End Sub 
 
Private Sub CaptureCtrl_Started(ByVal sender As Object, ByVal e As EventArgs) 
   StartClient() 
End Sub 
 
Private Sub StartClient() 
   Try 
      ' connect a client 
      _playCtrl.SourceFile = _networkAuthenticatedUrl 
   Catch ex As Exception 
      _result = False 
      Console.WriteLine("Player (Client) Exception: {0}", ex.Message) 
   End Try 
End Sub 
 
Private Sub ConnectionChecker(ByVal sender As Object, ByVal e As EventArgs) 
   _serverAndClient.TestTimer.Stop() 
 
   ' get the number of users connected to the server 
   Dim connCount As Integer = _pSink.ConnectionCount 
 
   ' get the first connection (demonstration purposes) 
   Dim pcon As ILMNetSnkConnection = _pSink.FindConnection(1) 
   ' release it -- it is a COM object you know! 
   Marshal.ReleaseComObject(pcon) 
 
   ' get the first connection 
   pcon = _pSink.FirstConnection 
 
   ' check all connections with the server 
   Do While Not pcon Is Nothing 
      Dim pnext As ILMNetSnkConnection = pcon.NextConnection 
      Dim id As Long = pcon.ID 
      Dim userName As String = pcon.Username 
      Dim connAddr As String = pcon.Address 
 
      ' determine whether connection is enabled  
      ' it should be, we just enabled it above 
      Dim enabled As Boolean = pcon.Enabled 
 
      ' is it connected 
      Dim connected As Boolean = pcon.Connected 
 
      ' determine whether connection is disabled 
      ' and disconnect it if so 
      If enabled = False Then 
         ' close this connection 
         pcon.Close() 
      End If 
      Marshal.ReleaseComObject(pcon) 
      pcon = pnext 
   Loop 
 
   ' close all connections (demonstration purposes) 
   _pSink.CloseAll() 
 
   _serverAndClient.TestTimer.Start() 
End Sub 
 
Private Sub PlayCtrl_MediaEvent(ByVal sender As Object, ByVal e As MediaEventArgs) 
   If e.eventCode = MediaEventCode.EC_COMPLETE Then 
      _result = _result And True 
   End If 
End Sub