OnBeforeSendNGetRequest Method

Summary

Notifies an implementor before a DicomNet::SendNGetRequest is sent.

Syntax

C++

public virtual void OnBeforeSendNGetRequest( 
   DicomClient Client, 
   byte presentationID, 
   int messageID, 
   string affectedClass, 
   string instance, 
   long[] attributes, 
   int count 
)

Public Overridable Sub OnBeforeSendNGetRequest( 
   ByVal Client As DicomClient, 
   ByVal presentationID As Byte, 
   ByVal messageID As Integer, 
   ByVal affectedClass As String, 
   ByVal instance As String, 
   ByVal attributes() As Long, 
   ByVal count As Integer 
)

public:  
   virtual void OnBeforeSendNGetRequest( 
       DicomClient^ Client, 
      Byte presentationID, 
      Int32 messageID, 
      String^ affectedClass, 
      String^ instance, 
      array<Int64>^ attributes, 
      Int32 count 
   )

Parameters

Client

The client this notification applies to.

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.

attributes

An array of the attributes to get. The attributes must be specified using the Data Element Tags. For a list of available Data Element Tags, refer to Data Element Tag Values.

count

The number of attributes being requested.

Remarks

Override this method to view or change arguments before a DicomNet::SendNGetRequest is sent.

This can be used with DICOM listening services in the High-level PACS Framework. For example, you can create an assembly that contains the following code, and copy the assembly into the DICOM listening service 'AddIns' folder.

public class SendNotify : NotifySendMessageBase 
{ 
      public override void OnBeforeSendNGetRequest(DicomClient Client, byte presentationID, int messageID, string affectedClass, string instance, long[] attributes, int count) 
      { 
         // View or change parameters 
         base.OnBeforeSendNGetRequest(Client, presentationID, messageID, affectedClass, instance, attributes, count); 
      } 
}