In This Topic ▼

LDicomNet::SendCStoreRequest

#include "ltdic.h"

L_INT LDicomNet::SendCStoreRequest(nPresentationID, nMessageID, pszClass, pszInstance, nPriority, pszMoveAE, nMoveMessageID, pDS)

Sends a C-STORE-REQ message to a peer member of a connection. This function is available in the PACS Imaging Toolkit.

Parameters

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 nPriority

The priority level of the message. The Service Class Provider may or may not support priority. Therefore, setting this parameter may or may not have any effect. Possible values are:

Value	Meaning
COMMAND_PRIORITY_LOW	[0x0002] Low priority message.
COMMAND_PRIORITY_MEDIUM	[0x0000] Medium priority message.
COMMAND_PRIORITY_HIGH	[0x0001] High priority message.

L_TCHAR * pszMoveAE

Character string that contains the name of the application entity that originally requested the move. For a simple storage request from a client to a server, this should be ". When the request is a sub-operation of a C-MOVE, this will contain the name of the AE that requested the move.

L_UINT16 nMoveMessageID

The ID of the original move request message. For a simple storage request from a client to a server, this should be 0. When the request is a sub-operation of a C-MOVE, this will contain the original message ID of the C-MOVE request.

LDicomDS *pDS

Pointer to the data set to be stored.

Returns

Value	Meaning
0	SUCCESS
>0	An error occurred. Refer to Return Codes.

Comments

When an SCU requests a Move (C-MOVE-REQ), the SCP may have to call this function to request one or more C-STORE-REQ sub-operations to complete the storage. The series of calls and information transfer in a C-MOVE-REQ is complicated. For more information, refer to Moving Composite Data.

Calling this function generates a call to LDicomNet::OnReceiveCStoreRequest on the SCP. The SCP should respond by calling LDicomNet::SendCStoreResponse which will generate a call to LDicomNet::OnReceiveCStoreResponse.

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

Functions

Topics

Example

This example sends an C-Store Request to a server In this example:

LMyDicomNet is a class derived from LDicomNet
LMyDicomNet has the following member variables: m_nClientOrServer: can be (STATUS_NONE, STATUS_SERVER, STATUS_CLIENT) identifies 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
m_pDicomNet points to a valid LMyDicomNet object LMyDicomNet *m_pDicomNet
A connection exists between client and server

An association exists between the client and server

L_INT LDicomNet__SendCStoreRequestExample(LMyDicomNet *m_pDicomNet) 
{ 
   L_INT nRet; 
   pDICOMELEMENT pDicomElement; 
   CString strMsg= TEXT("C-Store\n"); 
 
   //Pick a dicom file to send as the data set 
   LDicomDS DicomDS; 
   nRet =DicomDS.LoadDS(MAKE_IMAGE_PATH(TEXT("IMAGE1.dcm")),0); 
   if(nRet > 0) 
      return nRet; 
 
   //Find element with TAG == TAG_SOP_INSTANCE_UID 
   pDicomElement = DicomDS.FindFirstElement(NULL, TAG_SOP_INSTANCE_UID, FALSE); 
 
   //Get first string in Value Field of dicom element 
   CString strInstanceUID = DicomDS.GetStringValue(pDicomElement,  //dicom element  
                                                    0,              //index 
                                                    1               //count 
                                                   ); 
   //Get first element 
   pDicomElement = DicomDS.FindFirstElement(NULL, TAG_SOP_CLASS_UID, FALSE); 
   CString strClassUID = DicomDS.GetStringValue(pDicomElement, 0, 1); 
 
   //Get the associate object 
   LDicomAssociate *pDicomAssociate = m_pDicomNet->GetAssociate(); 
 
    //See if class is supported in the assocation 
   L_UCHAR nPresentationID = pDicomAssociate->FindAbstract((L_TCHAR *)(LPCTSTR)strClassUID); 
 
   //nPresentationID must be odd--0 indicates failure 
   if (nPresentationID==0) 
   { 
      CString strTmp; 
      strTmp.Format(TEXT("Abstract Syntax[%s] Not Included in the Association"), strClassUID); 
      strMsg = strMsg + strTmp; 
   } 
   else  
   { 
      L_UINT16 uUniqueID = 99; 
 
      m_pDicomNet->m_FileCount = 0;  //used for file name in OnReceiveCStoreRequest event 
      m_pDicomNet->EnableOptimizedMemorySend(L_TRUE); 
      nRet =m_pDicomNet->SendCStoreRequest(  nPresentationID,  
                                          uUniqueID,  
                                          (L_TCHAR *)(LPCTSTR)strClassUID,  
                                          (L_TCHAR *)(LPCTSTR)strInstanceUID,  
                                          COMMAND_PRIORITY_MEDIUM,  
                                          TEXT(""),  
                                          0,  
                                          &DicomDS); 
      if(nRet > 0) 
         return nRet; 
   } 
   AfxMessageBox(strMsg); 
 
   return DICOM_SUCCESS; 
}

Download our FREE evaluation

Help Version 20.0.2020.4.2