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_CHAR * pszClass; |
/* class type */ |
L_CHAR * 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
{
//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
CString strMsg = "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_CHAR *)(LPCTSTR)strClassUID);
//nPresentationID must be odd--0 indicates failure
if (nPresentationID==0)
{
CString strTmp;
strTmp.Format("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 = "d:\\temp\\nGet.dic";
CString strInstanceUID = "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 };
int nNumAttributes = sizeof(Attributes) / sizeof(L_UINT32);
//global variable to count results
m_pDicomNet->m_FileCount = 0;
m_pDicomNet->SendNGetRequest( nPresentationID,
uUniqueID,
(L_CHAR *)(LPCTSTR)strClassUID,
(L_CHAR *)(LPCTSTR)strInstanceUID,
Attributes,
nNumAttributes);
strMsg = strMsg + "SendNGetRequest\n";
}
AfxMessageBox(strMsg);
}