LDicomNet::OnReceiveNActionRequest

#include "ltdic.h"

virtual L_VOID LDicomNet::OnReceiveNActionRequest(nPresentationID, nMessageID, pszClass, pszInstance, nAction, pDS)

L_UCHAR nPresentationID;	/* presentation ID */
L_UINT16 nMessageID;	/* message ID */
L_TCHAR * pszClass;	/* class type */
L_TCHAR * pszInstance;	/* instance */
L_UINT16 nAction;	/* the action to perform */
LDicomDS *pDS;	/* data set */

Notifies a connection that an N-ACTION-REQ command was received. This function is available in the PACS Imaging Toolkit.

Parameter	Description
nPresentationID	Presentation ID. The presentation ID provides information about both the class type of the data and the transfer syntax to use when transferring the data.
nMessageID	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.
pszClass	Class affected by the request. This will be an SOP Class or an SOP MetaClass.
pszInstance	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.
nAction	An application specific action to be performed on the specified data set.
pDS	The data set on which the specified action is to be performed.

Returns

None.

Comments

A call to this function is generated on a peer member of a connection when LDicomNet::SendNActionRequest is called.

To customize this function, you must derive a class from LDicomNet and override this function.

The action specified may be the addition of a new patient, the deletion of a patient, the addition of a new study, a print job, etc. The nAction value, which designates the action to perform is determined by the server. To find out the values used, you must contact the organization that created the server. When creating a server, the values and their corresponding meanings are determined by those creating the server.

Required DLLs and Libraries

LTDIC

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions:	LDicomNet::SendNActionRequest, LDicomNet::SendNActionResponse, LDicomNet::OnReceiveNActionResponse
Topics:	Receiving Messages

Example

//In this example:

//1. LMyDicomNet is a class derived from LDicomNet

//2. LMyDicomNet has the following member variables:

// m_nClientOrServer: can be (STATUS_NONE, STATUS_SERVER, STATUS_CLIENT)

// identifieds the LMyDicomNet object as a server or a client

// m_nDataCommand: can be (COMMAND_C_MOVE,COMMAND_C_GET)

// set so the server knows how a C-Store Response was generated

//3. m_pDicomNet points to a valid LMyDicomNet object

// LMyDicomNet *m_pDicomNet

//4. A connection exists between client and server

//5. An association exists between the client and server

L_VOID LMyDicomNet::OnReceiveNActionRequest(L_UCHAR nPresentationID, L_UINT16 nMessageID, L_TCHAR *pszClass, L_TCHAR *pszInstance, L_UINT16 nAction, LDicomDS *pDS)
{
   CString strMsg;
   L_UINT lPeerPort;
   L_TCHAR  szPeerAddress[100];
   
   GetPeerInfo(szPeerAddress, 100, &lPeerPort);
   strMsg.Format(TEXT("*** OnReceiveNActionRequest ***\nPeer[%s]\nnPresent\
                  ationID[%d]\nnMessageID[%d]\npszClass[%s]\npszInstance[%s]\nnAction[%d]\npDS[%x]\n"), 
               szPeerAddress,
               nPresentationID, 
               nMessageID, 
               pszClass,
               pszInstance, 
               nAction,
               pDS);
            
   //...
   //...Here the server should perform the Action command
   //...
   //...
   //...nStatus = status of the the above--assume DICOM_SUCCESS
   //...
   
   L_UINT16 nStatus = COMMAND_STATUS_SUCCESS;
   SendNActionResponse(nPresentationID,  nMessageID, pszClass, pszInstance, nStatus, nAction, pDS);
   strMsg += TEXT("SendNActionResponse\n");
   AfxMessageBox(strMsg);
}