L_DicomSendNCreateRequest

#include "ltdic.h"

L_LTDIC_API L_INT L_DicomSendNCreateRequest(hNet, nPresentationID, nMessageID, pszClass, pszInstance, hDS)

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

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

Platforms

Win32, x64, Linux.

See Also

Functions

Topics

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; 
} 
Help Version 20.0.2019.9.20
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2019 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS DICOM C API Help