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L_DicomSendNActionResponse

Summary

Sends an N-ACTION-RSP message to a peer member of a connection. This function is available in the PACS Imaging Toolkit.

Syntax

#include "ltdic.h"

L_LTDIC_API L_INT L_DicomSendNActionResponse(hNet, nPresentationID, nMessageID, pszClass, pszInstance, nStatus, nAction, hDS)

Parameters

HDICOMNET hNet

A DICOM Network handle to the peer member of the connection.

L_UCHAR 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.

L_UINT16 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.

L_TCHAR * pszClass

Class affected by the request. This will be an SOP Class or an SOP MetaClass.

L_TCHAR * 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.

L_UINT16 nStatus

The status of the original request. For a list of possible values, refer to Status Constants.

L_UINT16 nAction

An application specific action that was performed on the specified data set.

HDICOMDS hDS

Data set resulting from the specified action.

Returns

Value	Meaning
DICOM_SUCCESS	The function was successful.
>0	An error occurred. Refer to Return Codes.

Comments

L_DicomSendNActionResponse is sent by the SCP in response to an L_DicomSendNActionRequest call placed by an SCU. This generates a call to RECEIVENACTIONRESPONSECALLBACK on the SCU.

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

Platforms

Win32, x64, Linux.

Example

#include <windowsx.h> 
 
#include <windowsx.h> 
static HWND hList;      /* handle to list box */ 
 
L_INT16 PerformACTIONCommand(L_TCHAR * pszClass, L_TCHAR * pszInstance,L_INT nAction,HDICOMDS hDS) 
{ 
   UNREFERENCED_PARAMETER(pszClass); 
   UNREFERENCED_PARAMETER(pszInstance); 
   UNREFERENCED_PARAMETER(nAction); 
   UNREFERENCED_PARAMETER(hDS); 
 
   // 
   // Add your code here 
   // 
   return DICOM_SUCCESS; 
} 
 
L_VOID EXT_CALLBACK OnReceiveNActionRequest( 
   HDICOMNET hNet, 
   L_UCHAR nPresentationID, 
   L_UINT16 nMessageID, 
   L_TCHAR *pszClass, 
   L_TCHAR *pszInstance, 
   L_UINT16 nAction, 
   HDICOMDS hDS, 
   L_VOID *pUserData) 
{ 
   UNREFERENCED_PARAMETER(pUserData); 
   L_INT16 nRet; 
   L_TCHAR szMsg[800]; 
 
   ListBox_AddString(hList, TEXT("Command Set - N-ACTION-REQUEST")); 
   wsprintf(szMsg, TEXT("     Presentation ID: %d"), nPresentationID); 
   ListBox_AddString(hList, szMsg); 
   wsprintf(szMsg, TEXT("     Message ID: %d"), nMessageID); 
   ListBox_AddString(hList, szMsg); 
   wsprintf(szMsg, TEXT("     Requested SOP Class: %s"), pszClass); 
   ListBox_AddString(hList, szMsg); 
   wsprintf(szMsg, TEXT("     Requested SOP Instance: %s"), pszInstance); 
   ListBox_AddString(hList, szMsg); 
   wsprintf(szMsg, TEXT("     Action: %d"), nAction); 
   ListBox_AddString(hList, szMsg); 
    
   /* this function should perform the action command */ 
   nRet = PerformACTIONCommand(pszClass, pszInstance, nAction, hDS); 
    
   if(nRet != DICOM_SUCCESS) 
      nRet = COMMAND_STATUS_PROCESSING_FAILURE; 
 
   /* send a response */ 
   L_DicomSendNActionResponse(hNet, nPresentationID, nMessageID, pszClass, pszInstance, nRet, nAction, 0); 
}