LDicomNet::SendNGetRequest

Functions

• LDicomNet::SendNGetResponse
• LDicomNet::OnReceiveNGetRequest
• LDicomNet::OnReceiveNGetResponse

Topics

• Working with DICOM Network Connections

Example

This example sends an N-Get 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)
   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

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 LDicomNet__SendNGetRequestExample(LMyDicomNet *m_pDicomNet) 
   { 
      L_INT nRet; 
      CString strMsg = TEXT("N-Get\n"); 
       
      //Get the associate object 
      LDicomAssociate *pDicomAssociate = m_pDicomNet->GetAssociate(); 
       
      //Choose an SOP Class to find 
      CString strClassUID = UID_SC_IMAGE_STORAGE; 
       
      //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 
      {       
         //Create a list of the identifiers that you wish to get from the server 
         CString  strGetFile = MAKE_IMAGE_PATH(TEXT("IMAGE1.dcm")); 
         CString strInstanceUID = TEXT("1.1.1.1"); 
          
         L_UINT16 uUniqueID = 99; 
         L_UINT32 Attributes[] = {  TAG_PATIENT_NAME,  
                                    TAG_PATIENT_ID,  
                                    TAG_PATIENT_SEX, 
                                    TAG_NUMBER_OF_STUDY_RELATED_INSTANCES }; 
          
         L_UINT16 uNumAttributes = sizeof(Attributes) / sizeof(L_UINT32); 
    
         //global variable to count results 
         m_pDicomNet->m_FileCount = 0; 
         nRet =m_pDicomNet->SendNGetRequest( nPresentationID,  
                                       uUniqueID,  
                                       (L_TCHAR *)(LPCTSTR)strClassUID,  
                                       (L_TCHAR *)(LPCTSTR)strInstanceUID,   
                                       Attributes,  
                                       uNumAttributes); 
         if(nRet > 0) 
            return nRet; 
          
         strMsg += TEXT("SendNGetRequest\n"); 
      } 
      AfxMessageBox(strMsg); 
    
      return DICOM_SUCCESS; 
   }