LDicomNet::SendNGetRequest
#include "ltdic.h"
L_INT LDicomNet::SendNGetRequest(nPresentationID, nMessageID, pszClass, pszInstance, pnAttribute, nCount)
L_UCHAR nPresentationID; |
/* presentation ID */ |
L_UINT16 nMessageID; |
/* message ID */ |
L_TCHAR * pszClass; |
/* class type */ |
L_TCHAR * pszInstance; |
/* instance */ |
L_UINT16 * pnAttribute; |
/* array of attributes */ |
L_UINT16 nCount; |
/* number of attributes */ |
Sends an N-GET-REQ message to a peer member of a connection. This function is available in the Medical Suite 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. |
pnAttribute |
An array of the attributes to get. The attributes must be specified using the Data Element Tags. For a list of available Data Element Tags, refer to Data Element Tag Constants. |
nCount |
Number of attributes being requested. |
Returns
0 |
SUCCESS |
>0 |
An error occurred. Refer to Return Codes. |
Comments
Calling this function generates a call to LDicomNet::OnReceiveNGetRequest on the SCP. The SCP should respond by calling LDicomNet::SendNGetResponse which will generate a call to LDicomNet::OnReceiveNGetResponse.
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::SendNGetResponse, LDicomNet::OnReceiveNGetRequest, LDicomNet::OnReceiveNGetResponse |
Topics: |
Example
L_INT LDicomNet__SendNGetRequestExample(LMyDicomNet *m_pDicomNet) { //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) // 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; 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 = TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\temp\\nGet.dic"); 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; }