#include "ltdic.h"
L_INT LDicomNet::SendCMoveRequest(nPresentationID, nMessageID, pszClass, nPriority, pszMoveAE, pDS)
Sends a C-MOVE-REQ message to a peer member of a connection. This function is available in the PACS Imaging Toolkit.
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.
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.
Class affected by the request. This will be an SOP Class or an SOP MetaClass.
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. |
Character string that contains the name of the application entity to which to move the data.
Pointer to the data set to be moved.
Value | Meaning |
---|---|
0 | SUCCESS |
>0 | An error occurred. Refer to Return Codes. |
Calling this function generates a call to LDicomNet::OnReceiveCMoveRequest on the SCP. The SCP should respond by calling LDicomNet::SendCMoveResponse which will generate a call to LDicomNet::OnReceiveCMoveResponse.
Required DLLs and Libraries
Win32, x64
This example sends an C-Move 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
static void InsertNextElement(LDicomDS *pDicomDS, L_UINT32 nTag);
L_INT LDicomNet__SendCMoveRequestExample(LMyDicomNet *m_pDicomNet)
{
L_INT nRet;
CString strMsg = TEXT("C-Move\n");
//Choose a class to move
CString strClassUID = UID_NM_IMAGE_STORAGE;
//create the data set that encodes the identifier to be matched
LDicomDS DicomDS;
DicomDS.InitDS(CLASS_UNKNOWN, 0);
//add the required elements
pDICOMTAG pDicomTag = LDicomTag::Find(TAG_QUERY_RETRIEVE_LEVEL);
pDICOMELEMENT pElement = DicomDS.InsertElement(
NULL, //pDICOMELEMENT pNeighbor
FALSE, //L_BOOL bChild
TAG_QUERY_RETRIEVE_LEVEL, //L_UINT32 nTag
pDicomTag->nVR, //L_UINT16 nVR
FALSE, //L_BOOL bSequence,
0 //L_UINT32 nIndex
);
DicomDS.SetStringValue(pElement, TEXT("PATIENT"),
1, DICOM_CHARACTER_SET_DEFAULT);
InsertNextElement(&DicomDS,TAG_PATIENT_NAME);
InsertNextElement(&DicomDS,TAG_PATIENT_ID);
InsertNextElement(&DicomDS,TAG_PATIENT_BIRTH_DATE);
InsertNextElement(&DicomDS,TAG_PATIENT_SEX);
InsertNextElement(&DicomDS, TAG_NUMBER_OF_STUDY_RELATED_INSTANCES);
//global variable to count results
m_pDicomNet->m_FileCount = 0;
//Get the associate object
LDicomAssociate *pDicomAssociate = m_pDicomNet->GetAssociate();
//Is class 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 //success
{
L_UINT16 uUniqueID = 99;
//Choose DICOM AE title of the destination DICOM AE
//from which the C-store operations are being performed
//This is set by the SetCalling() method of the LDicomAssociateRequest object
//before doing a SendAssociateRequest
CString strMoveAE = TEXT("LEADtest");
m_pDicomNet->m_FileCount = 0; //used for file name in OnReceiveCStoreRequest event
//The client requests the server to move the SOP Instance to itself (the client)
nRet =m_pDicomNet->SendCMoveRequest(
nPresentationID,
uUniqueID,
(L_TCHAR *)(LPCTSTR)strClassUID,
COMMAND_PRIORITY_MEDIUM,
(L_TCHAR *)(LPCTSTR)strMoveAE,
&DicomDS
);
if(nRet > 0)
return nRet;
}
AfxMessageBox(strMsg);
//now wait for one or more C-STORE sub-operations and finally the C-Get response
return DICOM_SUCCESS;
}
static void InsertNextElement(LDicomDS *pDicomDS, L_UINT32 nTag)
{
pDICOMTAG pDicomTag = LDicomTag::Find(nTag);
pDicomDS->InsertElement(
NULL, //pDICOMELEMENT pNeighbor
FALSE, //L_BOOL bChild
nTag, //L_UINT32 nTag
pDicomTag->nVR, //L_UINT16 nVR
FALSE, //L_BOOL bSequence,
0 //L_UINT32 nIndex
);
}