LDicomNet::SendCStoreRequest

#include "ltdic.h"

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

L_UCHAR nPresentationID;	/* presentation ID */
L_UINT16 nMessageID;	/* message ID */
L_TCHAR * pszClass;	/* class type */
L_TCHAR * pszInstance;	/* instance */
L_UINT16 nPriority;	/* priority of the message */
L_TCHAR * pszMoveAE;	/* name of the application entity */
L_UINT16 nMoveMessageID;	/* message ID */
LDicomDS *pDS;	/* data set to be stored */

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

Parameter	Description
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.
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.
pszClass	Class affected by the request. This will be an SOP Class or an SOP MetaClass.
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.
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_PRIORTY_HIGH	[0x0001] High priority message.
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.
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.
pDS	Pointer to the data set to be stored.

Returns

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

See Also

Functions:	LDicomNet::SendCStoreResponse, LDicomNet::SendCMoveRequest, LDicomNet::OnReceiveCStoreRequest, LDicomNet::OnReceiveCStoreResponse, LDicomNet::OnReceiveCMoveRequest, LDicomNet::OnReceiveCMoveResponse
Topics:	Working with DICOM Network Connections
	Moving Composite Data

Example

L_INT LDicomNet__SendCStoreRequestExample(LMyDicomNet *m_pDicomNet)
{
   //This example sends an C-Store Request to a server
   //In this example:
   //
   //1. LMyDicomNet is a class derived from LDicomNet
   //2. LMyDicomNet has the following member variables:
   //       m_nClientOrServer:  can be (STATUS_NONE, STATUS_SERVER, STATUS_CLIENT)
   //                           identifieds 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
   //
   //3. m_pDicomNet points to a valid LMyDicomNet object
   //      LMyDicomNet *m_pDicomNet
   // 
   //4. A connection exists between client and server
   //5. An association exists between the client and server
   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(TEXT("%UserProfile%\\My Documents\\LEADTOOLS Images\\dicom16.dic"),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
      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;
}