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LDicomNet::OnReceiveCStoreRequest

Summary

Notifies a connection that a C-STORE-REQ command was received. This function is available in the Medical Imaging Suite Toolkit.

Syntax

#include "ltdic.h"

virtual L_VOID LDicomNet::OnReceiveCStoreRequest(nPresentationID, nMessageID, pszClass, pszInstance, nPriority, pszMoveAE, nMoveMessageID, pDS)

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

None.

Comments

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

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

When an SCU requests a Move (C-MOVE-REQ), the SCP may have to call LDicomNet::SendCStoreRequest 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.

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

Example

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_VOID LMyDicomNet::OnReceiveCStoreRequest(L_UCHAR nPresentationID, L_UINT16 nMessageID, L_TCHAR *pszClass, L_TCHAR *pszInstance, L_UINT16 nPriority, L_TCHAR *pszMoveAE, L_UINT16 nMoveMessageID, LDicomDS *pDS) 
{ 
   CString strMsg; 
   strMsg.Format(TEXT("*** OnReceiveCStoreRequest ***\nnPresentationID[%d]\nnMessageID[%d]\npszClass[%s]\npszInstance[%s]\nnPriority[%d]\npszMoveAE[%s]\nnMoveMessageID[%d]"), 
                 nPresentationID, 
                 nMessageID, 
                 pszClass, 
                 pszInstance, 
                 nPriority,  
                 pszMoveAE,  
                 nMoveMessageID 
                 ); 
   //... 
   //...Do the store here 
   //...nStatus = status of the store 
   //... 
 
   if (pDS != NULL)  
    { 
       m_FileCount++; 
       CString strFileName; 
       strFileName.Format(MAKE_IMAGE_PATH(TEXT("CStore%d.dcm")), m_FileCount); 
       pDS->SaveDS((L_TCHAR *)(LPCTSTR)strFileName,0); 
       strMsg += TEXT("Saving["); 
       strMsg += strFileName; 
       strMsg += TEXT("]"); 
    } 
 
   L_UINT16 nStatus = COMMAND_STATUS_SUCCESS; 
   strMsg += TEXT("SendCStoreResponse\n"); 
   SendCStoreResponse(nPresentationID, nMessageID, pszClass, pszInstance, nStatus); 
   AfxMessageBox(strMsg); 
}