SendNDeleteRequest Method (DicomNet)

Sends an N-DELETE-REQ message to a peer member of a connection.

Syntax

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public void SendNDeleteRequest( 
   byte presentationID,
   int messageID,
   string affectedClass,
   string instance
)

'Declaration

Public Sub SendNDeleteRequest( _
   ByVal presentationID As Byte, _
   ByVal messageID As Integer, _
   ByVal affectedClass As String, _
   ByVal instance As String _
)

'Usage

Dim instance As DicomNet
Dim presentationID As Byte
Dim messageID As Integer
Dim affectedClass As String
Dim instance As String
 
instance.SendNDeleteRequest(presentationID, messageID, affectedClass, instance)

public void SendNDeleteRequest( 
   byte presentationID,
   int messageID,
   string affectedClass,
   string instance
)

 function Leadtools.Dicom.DicomNet.SendNDeleteRequest( 
   presentationID ,
   messageID ,
   affectedClass ,
   instance 
)

public:
void SendNDeleteRequest( 
   byte presentationID,
   int messageID,
   String^ affectedClass,
   String^ instance
)

Parameters

presentationID: The Presentation Context ID. The ID provides information about both the class type of the data and the Transfer Syntax to use when transferring the data.
messageID: The Message ID. Each message sent by a member of a connection should have a unique ID. Since a member of a connection may send several messages, this ID allows that member to identify when a specific request has been completed.
affectedClass: The class affected by the request. This will be a SOP Class or a Meta SOP Class.
instance: The instance of the class. A server may, for example, have three instances of the Nuclear Medicine Class. This value identifies the data with a specific instance.

Remarks

Calling this method generates a call to OnReceiveNDeleteRequest on the SCP. The SCP should respond by calling SendNDeleteResponse which will generate a call to OnReceiveNDeleteResponse.

This method requests that the SCP delete the specified SOP Instance.

Example

This is a comprehensive sample that shows how to process a DICOM N-Delete operation on both the SCP (server) and the SCU (client) sides.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Dicom

<StructLayout(LayoutKind.Sequential)> _
Public Structure MSG
   Public hwnd As IntPtr
   Public message As UInteger
   Public wParam As IntPtr
   Public lParam As IntPtr
   Public time As UInteger
   Public p As System.Drawing.Point
End Structure
Public Enum WaitReturn
   Complete
   Timeout
End Enum

Private Class Utils
   <DllImport("user32.dll")> _
   Shared Function PeekMessage(<System.Runtime.InteropServices.Out()> ByRef lpMsg As MSG, ByVal hWnd As IntPtr, ByVal wMsgFilterMin As UInteger, _
                                  ByVal wMsgFilterMax As UInteger, ByVal wRemoveMsg As UInteger) As <MarshalAs(UnmanagedType.Bool)> Boolean
   End Function

   <DllImport("user32.dll")> _
   Shared Function TranslateMessage(ByRef lpMsg As MSG) As Boolean
   End Function
   <DllImport("user32.dll")> _
   Shared Function DispatchMessage(ByRef lpmsg As MSG) As IntPtr
   End Function

   Private Const PM_REMOVE As UInteger = 1

   Public Shared Function WaitForComplete(ByVal mill As Double, ByVal wh As WaitHandle) As WaitReturn
      Dim goal As TimeSpan = New TimeSpan(DateTime.Now.AddMilliseconds(mill).Ticks)

      Do
         Dim msg As MSG = New MSG()

         If PeekMessage(msg, IntPtr.Zero, 0, 0, PM_REMOVE) Then
            TranslateMessage(msg)
            DispatchMessage(msg)
         End If

         If wh.WaitOne(New TimeSpan(0, 0, 0), False) Then
            Return WaitReturn.Complete
         End If

         If goal.CompareTo(New TimeSpan(DateTime.Now.Ticks)) < 0 Then
            Return WaitReturn.Timeout
         End If

      Loop While True
   End Function
End Class

Private Class Client : Inherits DicomNet
   Private _LastError As DicomExceptionCode = DicomExceptionCode.Success
   Private waitEvent As AutoResetEvent = New AutoResetEvent(False)

   Public Sub New()
      MyBase.New(Nothing, DicomNetSecurityeMode.None)
   End Sub

   Public ReadOnly Property LastError() As DicomExceptionCode
      Get
         Return _LastError
      End Get
   End Property

   Public Function Wait() As Boolean
      Dim ret As WaitReturn

      _LastError = DicomExceptionCode.Success
      ret = Utils.WaitForComplete((5 * 60) * 1000, waitEvent)

      Return (ret = WaitReturn.Complete)
   End Function

   Protected Overrides Sub OnConnect(ByVal [error] As DicomExceptionCode)
      _LastError = [error]
      waitEvent.Set()
   End Sub

   Protected Overrides Sub OnReceiveAssociateAccept(ByVal association As DicomAssociate)
      waitEvent.Set()
   End Sub

   Protected Overrides Sub OnReceiveNDeleteResponse(ByVal presentationID As Byte, ByVal messageID As Integer, ByVal affectedClass As String, _
                                                    ByVal instance As String, ByVal status As DicomCommandStatusType)
      Debug.Assert(messageID = 1, "Invalid message id.  Should be 1")
      Debug.Assert(affectedClass = DicomUidType.BasicFilmBoxClass, "Affected class should be BasicFilmBoxClass: " & DicomUidType.BasicFilmBoxClass)
      Debug.Assert(status = DicomCommandStatusType.Success, "Status should be success")

      waitEvent.Set()
   End Sub
End Class

Private Class ServerConnection : Inherits DicomNet
   Public Sub New()
      MyBase.New(Nothing, DicomNetSecurityeMode.None)
   End Sub

   Protected Overrides Sub OnReceiveAssociateRequest(ByVal association As DicomAssociate)
      Dim retAssociation As DicomAssociate = New DicomAssociate(False)

      Debug.Assert(association.Called = "ServerTest", "Called AETitle should be ServerTest")
      Debug.Assert(association.Calling = "ClientTest", "Calling AETitle should be ClientTest")
      Debug.Assert(association.ImplementClass = "1.2.840.114257.1", "Implementation class should be 1.2.840.114257.1")
      Debug.Assert(association.ImplementationVersionName = "1", "Implementation version should be 1")
      Debug.Assert(association.MaxLength = &H100000, "Max length should be 0x100000")
      Debug.Assert(association.GetAbstract(1) = DicomUidType.VerificationClass, "Presentation index 1 should be " & DicomUidType.VerificationClass)
      Debug.Assert(association.GetTransfer(1, 0) = DicomUidType.ImplicitVRLittleEndian, "Abstract Syntax (1,0) should be " & DicomUidType.ImplicitVRLittleEndian)

      '
      ' Build our Association Accept
      '
      retAssociation.Called = association.Called
      retAssociation.Calling = association.Calling
      retAssociation.ImplementClass = association.ImplementClass
      retAssociation.ImplementationVersionName = association.ImplementationVersionName
      Dim x As Integer = 0
      Do While x < association.PresentationContextCount
         Dim id As Byte = association.GetPresentationContextID(x)
         Dim abSyntax As String = association.GetAbstract(id)
         Dim trSyntax As String = DicomUidType.ImplicitVRLittleEndian

         retAssociation.AddPresentationContext(id, 0, abSyntax)
         If association.GetTransferCount(id) > 0 Then
            trSyntax = association.GetTransfer(id, 0)
         End If

         retAssociation.AddTransfer(id, trSyntax)
         x += 1
      Loop
      SendAssociateAccept(retAssociation)
   End Sub

   Protected Overrides Sub OnReceiveNDeleteRequest(ByVal presentationID As Byte, ByVal messageID As Integer, ByVal affectedClass As String, ByVal instance As String)
      Dim id As Byte = Association.FindAbstract(affectedClass)

      Debug.Assert(id = presentationID, "PresentationID is invalid")
      Debug.Assert(messageID = 1, "Invalid message id.  Should be 1")
      Debug.Assert(instance = "1.1.1.1.9999.2", "Instance should be 1.1.1.1.9999.2")

      SendNDeleteResponse(presentationID, messageID, affectedClass, instance, DicomCommandStatusType.Success)
   End Sub
End Class

Private Class Server : Inherits DicomNet
   Private client As ServerConnection

   Public Sub New()
      MyBase.New(Nothing, DicomNetSecurityeMode.None)
   End Sub

   Protected Overrides Sub OnAccept(ByVal [error] As DicomExceptionCode)
      client = New ServerConnection()

      Accept(client)
   End Sub
End Class


<TestMethod()> _
Public Sub SendNDeleteRequestSample()
   DicomEngine.Startup()
   DicomNet.Startup()

   Using server As Server = New Server()
      Using client As Client = New Client()
         '
         ' Connect to server
         '
         server.Listen("127.0.0.1", 104, 1) ' start server
         client.Connect(Nothing, 1000, "127.0.0.1", 104) ' connect to server
         If (Not client.Wait()) Then ' wait for connection to finish
            Debug.Fail("Connection timed out")
         End If
         Debug.Assert(client.LastError = DicomExceptionCode.Success, "Connection failed")
         Debug.Assert(client.IsConnected(), "Client not connected")

         '
         ' Send associate request
         '
         Dim associate As DicomAssociate = New DicomAssociate(True)

         associate.Called = "ServerTest"
         associate.Calling = "ClientTest"
         associate.ImplementClass = "1.2.840.114257.1"
         associate.ImplementationVersionName = "1"
         associate.MaxLength = &H100000
         associate.AddPresentationContext(1, 0, DicomUidType.VerificationClass)
         associate.AddTransfer(1, DicomUidType.ImplicitVRLittleEndian)
         associate.AddPresentationContext(3, 0, DicomUidType.BasicFilmBoxClass)
         associate.AddTransfer(3, DicomUidType.ImplicitVRLittleEndian)
         client.SendAssociateRequest(associate)
         If (Not client.Wait()) Then ' wait for connection to finish
            Debug.Fail("SendAssociateRequest timed out")
         End If

         Dim pid As Byte = client.Association.FindAbstract(DicomUidType.BasicFilmBoxClass)

         client.SendNDeleteRequest(pid, 1, DicomUidType.BasicFilmBoxClass, "1.1.1.1.9999.2")
         If (Not client.Wait()) Then ' wait for NGet to finish
            Debug.Fail("SendNDeleteRequest timed out")
         End If
         client.CloseForced(True)
      End Using
      server.CloseForced(True)
   End Using

   DicomEngine.Shutdown()
   DicomNet.Shutdown()
End Sub

using Leadtools;
using Leadtools.Dicom;

[StructLayout(LayoutKind.Sequential)]
public struct MSG
{
    public IntPtr hwnd;
    public uint message;
    public IntPtr wParam;
    public IntPtr lParam;
    public uint time;
    public System.Drawing.Point p;
}
public enum WaitReturn
{
    Complete,
    Timeout,
}

class Utils
{
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool PeekMessage(out MSG lpMsg, IntPtr hWnd,
                                   uint wMsgFilterMin, uint wMsgFilterMax,
                                   uint wRemoveMsg);

    [DllImport("user32.dll")]
    static extern bool TranslateMessage([In] ref MSG lpMsg);
    [DllImport("user32.dll")]
    static extern IntPtr DispatchMessage([In] ref MSG lpmsg);

    const uint PM_REMOVE = 1;

    public static WaitReturn WaitForComplete(double mill, WaitHandle wh)
    {
        TimeSpan goal = new TimeSpan(DateTime.Now.AddMilliseconds(mill).Ticks);

        do
        {
            MSG msg = new MSG();

            if (PeekMessage(out msg, IntPtr.Zero, 0, 0, PM_REMOVE))
            {
                TranslateMessage(ref msg);
                DispatchMessage(ref msg);
            }

            if (wh.WaitOne(new TimeSpan(0, 0, 0), false))
            {
                return WaitReturn.Complete;
            }

            if (goal.CompareTo(new TimeSpan(DateTime.Now.Ticks)) < 0)
            {
                return WaitReturn.Timeout;
            }

        } while (true);
    }
}

class Client : DicomNet
{
    DicomExceptionCode _LastError = DicomExceptionCode.Success;
    AutoResetEvent waitEvent = new AutoResetEvent(false);

    public Client()
        : base(null, DicomNetSecurityeMode.None)
    {
    }

    public DicomExceptionCode LastError
    {
        get
        {
            return _LastError;
        }
    }

    public bool Wait()
    {
        WaitReturn ret;

        _LastError = DicomExceptionCode.Success;
        ret = Utils.WaitForComplete((5 * 60) * 1000, waitEvent);

        return (ret == WaitReturn.Complete);
    }

    protected override void OnConnect(DicomExceptionCode error)
    {
        _LastError = error;
        waitEvent.Set();
    }

    protected override void OnReceiveAssociateAccept(DicomAssociate association)
    {
        waitEvent.Set();
    }

    protected override void OnReceiveNDeleteResponse(byte presentationID, int messageID, string affectedClass, string instance, DicomCommandStatusType status)
    {                
        Debug.Assert(messageID == 1, "Invalid message id.  Should be 1");
        Debug.Assert(affectedClass == DicomUidType.BasicFilmBoxClass, "Affected class should be BasicFilmBoxClass: " + DicomUidType.BasicFilmBoxClass);
        Debug.Assert(status == DicomCommandStatusType.Success, "Status should be success");

        waitEvent.Set();
    }
}

class ServerConnection : DicomNet
{
    public ServerConnection()
        : base(null, DicomNetSecurityeMode.None)
    {
    }

    protected override void OnReceiveAssociateRequest(DicomAssociate association)
    {
        DicomAssociate retAssociation = new DicomAssociate(false);

        Debug.Assert(association.Called == "ServerTest", "Called AETitle should be ServerTest");
        Debug.Assert(association.Calling == "ClientTest", "Calling AETitle should be ClientTest");
        Debug.Assert(association.ImplementClass == "1.2.840.114257.1", "Implementation class should be 1.2.840.114257.1");
        Debug.Assert(association.ImplementationVersionName == "1", "Implementation version should be 1");
        Debug.Assert(association.MaxLength == 0x100000, "Max length should be 0x100000");
        Debug.Assert(association.GetAbstract(1) == DicomUidType.VerificationClass, "Presentation index 1 should be " + DicomUidType.VerificationClass);
        Debug.Assert(association.GetTransfer(1, 0) == DicomUidType.ImplicitVRLittleEndian, "Abstract Syntax (1,0) should be " + DicomUidType.ImplicitVRLittleEndian);

        //
        // Build our Association Accept
        //

        retAssociation.Called = association.Called;
        retAssociation.Calling = association.Calling;
        retAssociation.ImplementClass = association.ImplementClass;
        retAssociation.ImplementationVersionName = association.ImplementationVersionName;
        for (int x = 0; x < association.PresentationContextCount; x++)
        {
            byte id = association.GetPresentationContextID(x);
            string abSyntax = association.GetAbstract(id);
            string trSyntax = DicomUidType.ImplicitVRLittleEndian;

            retAssociation.AddPresentationContext(id, 0, abSyntax);
            if (association.GetTransferCount(id) > 0)
            {
                trSyntax = association.GetTransfer(id, 0);
            }

            retAssociation.AddTransfer(id, trSyntax);
        }
        SendAssociateAccept(retAssociation);
    }

    protected override void OnReceiveNDeleteRequest(byte presentationID, int messageID, string affectedClass, string instance)
    {
        byte id = Association.FindAbstract(affectedClass);

        Debug.Assert(id == presentationID, "PresentationID is invalid");
        Debug.Assert(messageID == 1, "Invalid message id.  Should be 1");
        Debug.Assert(instance == "1.1.1.1.9999.2", "Instance should be 1.1.1.1.9999.2");

        SendNDeleteResponse(presentationID, messageID, affectedClass, instance, DicomCommandStatusType.Success);
    }
}

class Server : DicomNet
{
    ServerConnection client;

    public Server()
        : base(null, DicomNetSecurityeMode.None)
    {
    }

    protected override void OnAccept(DicomExceptionCode error)
    {
        client = new ServerConnection();

        Accept(client);
    }
}

[TestMethod]
public void SendNDeleteRequestSample()
{
    DicomEngine.Startup();
    DicomNet.Startup();

    using (Server server = new Server())
    {
        using (Client client = new Client())
        {
            //
            // Connect to server
            //

            server.Listen("127.0.0.1", 104, 1); // start server
            client.Connect(null, 1000, "127.0.0.1", 104); // connect to server
            if (!client.Wait()) // wait for connection to finish
            {
                Debug.Fail("Connection timed out");
            }
            Debug.Assert(client.LastError == DicomExceptionCode.Success, "Connection failed");
            Debug.Assert(client.IsConnected(), "Client not connected");

            //
            // Send associate request
            //

            DicomAssociate associate = new DicomAssociate(true);

            associate.Called = "ServerTest";
            associate.Calling = "ClientTest";
            associate.ImplementClass = "1.2.840.114257.1";
            associate.ImplementationVersionName = "1";
            associate.MaxLength = 0x100000;
            associate.AddPresentationContext(1, 0, DicomUidType.VerificationClass);
            associate.AddTransfer(1, DicomUidType.ImplicitVRLittleEndian);
            associate.AddPresentationContext(3, 0, DicomUidType.BasicFilmBoxClass);
            associate.AddTransfer(3, DicomUidType.ImplicitVRLittleEndian);
            client.SendAssociateRequest(associate);
            if (!client.Wait()) // wait for connection to finish
            {
                Debug.Fail("SendAssociateRequest timed out");
            }

            byte pid = client.Association.FindAbstract(DicomUidType.BasicFilmBoxClass);

            client.SendNDeleteRequest(pid, 1, DicomUidType.BasicFilmBoxClass, "1.1.1.1.9999.2");
            if (!client.Wait()) // wait for NGet to finish
            {
                Debug.Fail("SendNDeleteRequest timed out");
            }
            client.CloseForced(true);
        }
        server.CloseForced(true);
    }

    DicomEngine.Shutdown();
    DicomNet.Shutdown();
}

using Leadtools;
using Leadtools.Dicom;
using Leadtools.Dicom.Networking;
using Leadtools.Dicom.Constants;

public enum WaitReturn
{
    Complete,
    Timeout,
}
class Utils
{
    public static WaitReturn WaitForComplete(int ms, WaitHandle wh)
    {
        TimeSpan goal = new TimeSpan(DateTime.Now.AddMilliseconds(ms).Ticks);

        do
        {

            if (wh.WaitOne(ms))
            {
                return WaitReturn.Complete;
            }

            if (goal.CompareTo(new TimeSpan(DateTime.Now.Ticks)) < 0)
            {
                return WaitReturn.Timeout;
            }

        } while (true);
    }
}

class Client : IDicomEvents
{
    public DicomNet net;
    DicomExceptionCode _LastError = DicomExceptionCode.Success;
    AutoResetEvent waitEvent = new AutoResetEvent(false);

    public Client()
    {
        net = new DicomNet(string.Empty, this);
    }

    public DicomExceptionCode LastError
    {
        get
        {
            return _LastError;
        }
    }

    public bool Wait()
    {
        WaitReturn ret;

        _LastError = DicomExceptionCode.Success;
        ret = Utils.WaitForComplete((5 * 60) * 1000, waitEvent);

        return (ret == WaitReturn.Complete);
    }

    public void OnConnect(DicomExceptionCode error, DicomNet net)
    {
        Debug.WriteLine("Client::OnConnect");
        _LastError = error;
        waitEvent.Set();
    }

    public void OnReceiveAssociateAccept(DicomAssociate association, DicomNet net)
    {
        Debug.WriteLine("Client::OnReceiveAssociateAccept");
        waitEvent.Set();
    }

    public void OnReceiveReleaseResponse(DicomNet net)
    {
        Debug.WriteLine("Client::OnReceiveReleaseResponse");
        waitEvent.Set();
    }

    public void OnReceiveNDeleteResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomNet net)
    {
        Debug.WriteLine("Client::OnReceiveNDeleteResponse");
        Debug.Assert(messageID == 1, "Invalid message id.  Should be 1");
        Debug.Assert(affectedClass == DicomUidType.SCImageStorage, "Affected class should be PatientRootQueryMove: " + DicomUidType.PatientRootQueryMove);
        Debug.Assert(status == DicomCommandStatusType.Success, "Status should be success");

        waitEvent.Set();
    }

    public void OnAccept(DicomExceptionCode error, DicomNet net, object hHandle)
    {
        // Not Used
    }

    public void OnClose(DicomExceptionCode error, DicomNet net)
    {
        // Not Used
    }

    public void OnReceive(DicomExceptionCode error, DicomPduType pduType, byte[] buffer, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAbort(DicomAbortSourceType source, DicomAbortReasonType reason, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAssociateReject(DicomAssociateRejectResultType result, DicomAssociateRejectSourceType source, DicomAssociateRejectReasonType reason, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAssociateRequest(DicomAssociate association, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCCancelRequest(byte presentationID, ushort messageID, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCEchoRequest(byte presentationID, ushort messageID, string affectedClass, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCEchoResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCFindRequest(byte presentationID, ushort messageID, string affectedClass, DicomCommandPriorityType priority, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCFindResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCGetRequest(byte presentationID, ushort messageID, string affectedClass, DicomCommandPriorityType priority, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCGetResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, ushort remaining, ushort completed, ushort failed, ushort warning, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCMoveRequest(byte presentationID, ushort messageID, string affectedClass, DicomCommandPriorityType priority, string moveAE, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCMoveResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, ushort remaining, ushort completed, ushort failed, ushort warning, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCStoreRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandPriorityType priority, string moveAE, ushort moveMessageID, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCStoreResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveData(byte presentationID, DicomDataSet cs, DicomDataSet ds, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNActionRequest(byte presentationID, ushort messageID, string affectedClass, string instance, ushort action, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNActionResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, ushort action, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNCreateRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNCreateResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNDeleteRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNGetRequest(byte presentationID, ushort messageID, string affectedClass, string instance, uint[] attributes, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNGetResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNReportRequest(byte presentationID, ushort messageID, string affectedClass, string instance, ushort dicomevent, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNReportResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, ushort dicomevent, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNSetRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNSetResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveReleaseRequest(DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveUnknown(byte presentationID, DicomDataSet commandset, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnSend(DicomExceptionCode error, DicomPduType pduType, uint bytes, DicomNet net)
    {
        // Not Used
    }
}

class ServerConnection : IDicomEvents
{
    public DicomNet net;

    public ServerConnection()
    {
        net = new DicomNet(string.Empty, this);
    }

    public void OnReceiveAssociateRequest(DicomAssociate association, DicomNet net)
    {
        Debug.WriteLine("ServerConnection::OnReceiveAssociateRequest");
        DicomAssociate retAssociation = new DicomAssociate(false);

        Debug.Assert(association.Called == "ServerTest", "Called AETitle should be ServerTest");
        Debug.Assert(association.Calling == "ClientTest", "Calling AETitle should be ClientTest");
        Debug.Assert(association.ImplementClass == "1.2.840.114257.1", "Implementation class should be 1.2.840.114257.1");
        Debug.Assert(association.ImplementationVersionName == "1", "Implementation version should be 1");
        Debug.Assert(association.MaxLength == 0x100000, "Max length should be 0x100000");
        Debug.Assert(association.GetAbstract(1) == DicomUidType.VerificationClass, "Presentation index 1 should be " + DicomUidType.VerificationClass);
        Debug.Assert(association.GetTransfer(1, 0) == DicomUidType.ImplicitVRLittleEndian, "Abstract Syntax (1,0) should be " + DicomUidType.ImplicitVRLittleEndian);

        //
        // Build our Association Accept
        //

        retAssociation.Called = association.Called;
        retAssociation.Calling = association.Calling;
        retAssociation.ImplementClass = association.ImplementClass;
        retAssociation.ImplementationVersionName = association.ImplementationVersionName;
        for (int x = 0; x < association.PresentationContextCount; x++)
        {
            byte id = association.GetPresentationContextID(x);
            string abSyntax = association.GetAbstract(id);
            string trSyntax = DicomUidType.ImplicitVRLittleEndian;

            retAssociation.AddPresentationContext(id, 0, abSyntax);
            if (association.GetTransferCount(id) > 0)
            {
                trSyntax = association.GetTransfer(id, 0);
            }

            retAssociation.AddTransfer(id, trSyntax);
        }

        Debug.WriteLine("ServerConnection::SendAssociateAccept");
        net.SendAssociateAccept(retAssociation);
    }

    public void OnReceiveReleaseRequest(DicomNet net)
    {
        Debug.WriteLine("ServerConnection::OnReceiveReleaseRequest");
        Debug.WriteLine("ServerConnection::SendReleaseResponse");
        net.SendReleaseResponse();
    }

    public void OnReceiveNDeleteRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomNet net)
    {
        Debug.WriteLine("ServerConnection::OnReceiveNDeleteRequest");
        byte id = net.Association.FindAbstract(affectedClass);

        Debug.Assert(id == presentationID, "PresentationID is invalid");
        Debug.Assert(messageID == 1, "Invalid message id.  Should be 1");
        Debug.Assert(instance == "1.1.1.1.9999.2", "Instance should be 1.1.1.1.9999.2");

        Debug.WriteLine("ServerConnection::SendNDeleteResponse");
        net.SendNDeleteResponse(presentationID, messageID, affectedClass, instance, DicomCommandStatusType.Success);
    }

    public void OnAccept(DicomExceptionCode error, DicomNet net, object hHandle)
    {
        // Not Used
    }

    public void OnClose(DicomExceptionCode error, DicomNet net)
    {
        // Not Used
    }

    public void OnConnect(DicomExceptionCode error, DicomNet net)
    {
        // Not Used
    }

    public void OnReceive(DicomExceptionCode error, DicomPduType pduType, byte[] buffer, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAbort(DicomAbortSourceType source, DicomAbortReasonType reason, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAssociateAccept(DicomAssociate association, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAssociateReject(DicomAssociateRejectResultType result, DicomAssociateRejectSourceType source, DicomAssociateRejectReasonType reason, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCCancelRequest(byte presentationID, ushort messageID, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCEchoRequest(byte presentationID, ushort messageID, string affectedClass, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCEchoResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCFindRequest(byte presentationID, ushort messageID, string affectedClass, DicomCommandPriorityType priority, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCFindResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCGetRequest(byte presentationID, ushort messageID, string affectedClass, DicomCommandPriorityType priority, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCGetResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, ushort remaining, ushort completed, ushort failed, ushort warning, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCMoveRequest(byte presentationID, ushort messageID, string affectedClass, DicomCommandPriorityType priority, string moveAE, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCMoveResponse(byte presentationID, ushort messageID, string affectedClass, DicomCommandStatusType status, ushort remaining, ushort completed, ushort failed, ushort warning, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCStoreRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandPriorityType priority, string moveAE, ushort moveMessageID, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCStoreResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveData(byte presentationID, DicomDataSet cs, DicomDataSet ds, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNActionRequest(byte presentationID, ushort messageID, string affectedClass, string instance, ushort action, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNActionResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, ushort action, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNCreateRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNCreateResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNDeleteResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNGetRequest(byte presentationID, ushort messageID, string affectedClass, string instance, uint[] attributes, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNGetResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNReportRequest(byte presentationID, ushort messageID, string affectedClass, string instance, ushort dicomevent, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNReportResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, ushort dicomevent, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNSetRequest(byte presentationID, ushort messageID, string affectedClass, string instance, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNSetResponse(byte presentationID, ushort messageID, string affectedClass, string instance, DicomCommandStatusType status, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveReleaseResponse(DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveUnknown(byte presentationID, DicomDataSet commandset, DicomDataSet dataSet, DicomNet net)
    {
        // Not Used
    }

    public void OnSend(DicomExceptionCode error, DicomPduType pduType, uint bytes, DicomNet net)
    {
        // Not Used
    }
}

class Server : IDicomEvents
{
    public DicomNet net;

    ServerConnection client;

    public Server()
    {
        net = new DicomNet(string.Empty, this);
    }

    public void OnAccept(DicomExceptionCode error, DicomNet net, object hHandle)
    {
        Debug.WriteLine("Server::OnAccept");
        client = new ServerConnection();

        Debug.WriteLine("Server Accepting Connection");
        net.Accept(client.net, hHandle);
    }


    public void OnClose(DicomExceptionCode error, DicomNet net)
    {
        // Not Used
    }

    public void OnConnect(DicomExceptionCode error, DicomNet net)
    {
        // Not Used
    }

    public void OnReceive(DicomExceptionCode error, DicomPduType type, byte[] buffer, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAbort(DicomAbortSourceType source, DicomAbortReasonType reason, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAssociateAccept(DicomAssociate association, DicomNet net)
    {
        Debug.WriteLine("Server::OnReceiveAssociateAccept");
        // Not Used
    }

    public void OnReceiveAssociateReject(DicomAssociateRejectResultType result, DicomAssociateRejectSourceType source, DicomAssociateRejectReasonType reason, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveAssociateRequest(DicomAssociate association, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCCancelRequest(byte presentationId, ushort messageId, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCEchoRequest(byte presentationId, ushort messageId, string affectedClass, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCEchoResponse(byte presentationId, ushort messageId, string affectedClass, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCFindRequest(byte presentationId, ushort messageId, string affectedClass, DicomCommandPriorityType priority, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCFindResponse(byte presentationId, ushort messageId, string affectedClass, DicomCommandStatusType status, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCGetRequest(byte presentationId, ushort messageId, string affectedClass, DicomCommandPriorityType priority, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCGetResponse(byte presentationId, ushort messageId, string affectedClass, DicomCommandStatusType status, ushort remaining, ushort completed, ushort failed, ushort warning, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCMoveRequest(byte presentationId, ushort messageId, string affectedClass, DicomCommandPriorityType priority, string MoveAE, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCMoveResponse(byte presentationId, ushort messageId, string affectedClass, DicomCommandStatusType status, ushort remaining, ushort completed, ushort failed, ushort warning, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCStoreRequest(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandPriorityType priority, string MoveAE, ushort moveMessageId, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveCStoreResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveData(byte presentationId, DicomDataSet commandset, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNActionRequest(byte presentationId, ushort messageId, string affectedClass, string Instance, ushort action, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNActionResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, ushort action, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNCreateRequest(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNCreateResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNDeleteRequest(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNDeleteResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNGetRequest(byte presentationID, ushort messageID, string affectedClass, string instance, uint[] attributes, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNGetResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNReportRequest(byte presentationId, ushort messageId, string affectedClass, string Instance, ushort dicomevent, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNReportResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, ushort dicomevent, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNSetRequest(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveNSetResponse(byte presentationId, ushort messageId, string affectedClass, string Instance, DicomCommandStatusType status, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveReleaseRequest(DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveReleaseResponse(DicomNet net)
    {
        // Not Used
    }

    public void OnReceiveUnknown(byte presentationId, DicomDataSet commandset, DicomDataSet dataset, DicomNet net)
    {
        // Not Used
    }

    public void OnSend(DicomExceptionCode error, DicomPduType type, uint bytes, DicomNet net)
    {
        // Not Used
    }
}

[TestMethod]
public void SendNDeleteRequestSample()
{
    DicomEngine.Startup();
    DicomNet.Startup();

    Server server = new Server();
    Client client = new Client();

    //
    // Connect to server
    //

    server.net.Listen("127.0.0.1", 104, 1); // start server

    Debug.WriteLine("Client::Send Connect");
    client.net.Connect(string.Empty, 1000, "127.0.0.1", 104); // connect to server
    if (!client.Wait()) // wait for connection to finish
    {
        Debug.WriteLine("Connection timed out");
    }
    Debug.Assert(client.LastError == DicomExceptionCode.Success, "Connection failed");
    Debug.Assert(client.net.IsConnected(), "Client not connected");

    //
    // Send associate request
    //

    DicomAssociate associate = new DicomAssociate(true);

    associate.Called = "ServerTest";
    associate.Calling = "ClientTest";
    associate.ImplementClass = "1.2.840.114257.1";
    associate.ImplementationVersionName = "1";
    associate.MaxLength = 0x100000;
    associate.AddPresentationContext(1, 0, DicomUidType.VerificationClass);
    associate.AddTransfer(1, DicomUidType.ImplicitVRLittleEndian);
    associate.AddPresentationContext(3, 0, DicomUidType.SCImageStorage);
    associate.AddTransfer(3, DicomUidType.ImplicitVRLittleEndian);

    Debug.WriteLine("Client::SendAssociateRequest");
    client.net.SendAssociateRequest(associate);
    if (!client.Wait()) // wait for connection to finish
    {
        Debug.WriteLine("SendAssociateRequest timed out");
    }

    byte pid = client.net.Association.FindAbstract(DicomUidType.SCImageStorage);

    Debug.WriteLine("Client::SendNDeleteRequest");
    client.net.SendNDeleteRequest(pid, 1, DicomUidType.SCImageStorage, "1.1.1.1.9999.2");
    if (!client.Wait()) // wait for NGet to finish
    {
        Debug.WriteLine("SendNDeleteRequest timed out");
    }
    client.net.CloseForced(true);
    server.net.CloseForced(true);

    DicomEngine.Shutdown();
    DicomNet.Shutdown();
}

Requirements

Target Platforms

Reference

DicomNet Class
DicomNet Members
SendNDeleteResponse Method
OnReceiveNDeleteRequest Method
OnReceiveNDeleteResponse Method