L_DicomSendCMoveRequest

#include "ltdic.h"

L_LTDIC_API L_INT L_DicomSendCMoveRequest(hNet, nPresentationID, nMessageID, pszClass, nPriority, pszMoveAE, hDS)

Sends a C-MOVE-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_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 to which to move the data.

HDICOMDS hDS

Pointer to the data set to be moved.

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 RECEIVECMOVEREQUESTCALLBACK on the SCP. The SCP should respond by calling L_DicomSendCMoveResponse which will generate a call to RECEIVECMOVERESPONSECALLBACK.

Required DLLs and Libraries

Platforms

Win32, x64, Linux.

See Also

Functions

Topics

Example

L_INT DicomSendCMoveRequestExample( 
   HDICOMNET hNet, 
   L_TCHAR gszGetFile[L_MAXPATH]) 
{ 
   L_TCHAR szClassUID[200]; 
   L_TCHAR szAE[200]; 
   L_TCHAR szMsg[200]; 
   HDICOMPDU hPDU; 
   L_UCHAR nID; 
   HDICOMDS hDS=NULL; 
   pDICOMTAG pTag=NULL; 
   pDICOMELEMENT pElement=NULL; 
   L_INT nRet; 
 
    
   /* send a Move Request to the server */ 
    
   /*  
       gszGetFile is a global variable that will be used when we get 
       the C-STORE-RQ event to store the file 
   */ 
   lstrcpy(gszGetFile, MAKE_IMAGE_PATH(TEXT("Move_request.dcm"))); 
    
   /* this demo uses fixed values */ 
   lstrcpy(szClassUID, UID_NM_IMAGE_STORAGE); 
    
   /* create the data set that encodes the identifier to be matched */ 
   hDS = L_DicomCreateDS(NULL); 
   L_DicomInitDS(hDS, CLASS_UNKNOWN, 0); 
    
   /* add the required elements */ 
   pTag = L_DicomFindTag(TAG_QUERY_RETRIEVE_LEVEL); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_QUERY_RETRIEVE_LEVEL, pTag->nVR, FALSE, 0); 
   if (pElement == NULL) 
   { 
      L_DicomFreeDS(hDS); 
      return DICOM_ERROR_MEMORY; 
   } 
 
   L_DicomSetStringValue(hDS, pElement, TEXT("PATIENT"), 1, DICOM_CHARACTER_SET_DEFAULT); 
    
   pTag = L_DicomFindTag(TAG_PATIENT_NAME); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_PATIENT_NAME, pTag->nVR, FALSE, 0); 
   if (pElement == NULL) 
   { 
      L_DicomFreeDS(hDS); 
      return DICOM_ERROR_MEMORY; 
   } 
 
   pTag = L_DicomFindTag(TAG_PATIENT_ID); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_PATIENT_ID, pTag->nVR, FALSE, 0); 
   if (pElement == NULL) 
   { 
      L_DicomFreeDS(hDS); 
      return DICOM_ERROR_MEMORY; 
   } 
 
   pTag = L_DicomFindTag(TAG_PATIENT_BIRTH_DATE); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_PATIENT_BIRTH_DATE, pTag->nVR, FALSE, 0); 
   if (pElement == NULL) 
   { 
      L_DicomFreeDS(hDS); 
      return DICOM_ERROR_MEMORY; 
   } 
 
   pTag = L_DicomFindTag(TAG_PATIENT_SEX); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_PATIENT_SEX, pTag->nVR, FALSE, 0); 
   if (pElement == NULL) 
   { 
      L_DicomFreeDS(hDS); 
      return DICOM_ERROR_MEMORY; 
   } 
 
   pTag = L_DicomFindTag(TAG_NUMBER_OF_PATIENT_RELATED_INSTANCES); 
       
   hPDU = L_DicomGetAssociate(hNet); 
   L_DicomGetCalling(hPDU, szAE, 200); 
    
   /* now, send a request */ 
   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 
   { 
      /* we are asking the Called AE to move the SOP Instance to ourselves */ 
      nRet = L_DicomSendCMoveRequest(hNet, nID, 1, szClassUID, COMMAND_PRIORITY_MEDIUM, szAE, hDS); 
      if (nRet != DICOM_SUCCESS) 
      { 
         L_DicomFreeDS(hDS); 
         return nRet; 
      } 
   } 
   /* we now must wait for the response and for the C-STORE sub-operations */ 
   L_DicomFreeDS(hDS); 
   return DICOM_SUCCESS; 
} 
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