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L_DicomSendNCreateRequest

Summary

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

Syntax

#include "ltdic.h"

L_LTDIC_API L_INT L_DicomSendNCreateRequest(hNet, nPresentationID, nMessageID, pszClass, pszInstance, 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.

HDICOMDS hDS

Data set with the information to use when creating.

Returns

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

Comments

Calling this function generates a call to RECEIVENCREATEREQUESTCALLBACK on the SCP. The SCP should respond by calling L_DicomSendNCreateResponse which will generate a call to RECEIVENCREATERESPONSECALLBACK.

This function creates a new SOP Instance on the specified peer connection. The data set with the new information must be created and filled before calling this function.

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

L_INT DicomSendNCreateRequestExample(HDICOMNET hNet) 
{ 
   L_TCHAR szClassUID[200]; 
   L_TCHAR szInstanceUID[200]; 
   HDICOMPDU hPDU; 
   L_UCHAR nID; 
   HDICOMDS hDS=NULL; 
   L_TCHAR szMsg[200]; 
   L_UINT nRet; 
    
   /* this sample uses fixed values */ 
   lstrcpy(szClassUID, UID_SC_IMAGE_STORAGE); 
   lstrcpy(szInstanceUID, TEXT("1.2.840.113619.2.30.1.1762288927.1489.906240296.255")); 
    
   /* send a Create Request Command to the server */ 
   hPDU = L_DicomGetAssociate(hNet); 
    
   nID = L_DicomFindAbstract(hPDU, szClassUID); 
   if(nID == 0) 
   { 
      wsprintf(szMsg, TEXT("Abstract Syntax %s Not Supported by Association!"), szClassUID); 
      MessageBox(NULL, szMsg, TEXT("Error"), MB_OK); 
   } 
   else 
   { 
      /* 
         here, you should construct a Data Set that contains the attributes 
         and values for the new SOP Instance. 
         In this sample, we simply load a Data Set from a file on disk 
         as the data set to send 
      */ 
      hDS = L_DicomCreateDS(NULL); 
      nRet = L_DicomLoadDS(hDS,MAKE_IMAGE_PATH(TEXT("IMAGE1.dcm")), 0); 
      if (nRet != DICOM_SUCCESS) 
      { 
         L_DicomFreeDS(hDS); 
         return nRet; 
      } 
    
      /* send a Create Request message */ 
      nRet = L_DicomSendNCreateRequest(hNet, nID, 1, szClassUID, szInstanceUID, hDS); 
      if (nRet != DICOM_SUCCESS) 
      { 
         L_DicomFreeDS(hDS); 
         return nRet; 
      } 
 
      L_DicomFreeDS(hDS); 
   } 
   return DICOM_SUCCESS; 
}