References ▼
Notifies a connection that a C-GET-REQ command was received. This function is available in the Medical Imaging Suite.
#include "ltdic.h"
L_VOID pEXT_CALLBACK Your Function(hNet, nPresentationID, nMessageID, pszClass, nPriority, hDS, pUserData)
A DICOM Network handle.
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.
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.
Class affected by the request. This will be an SOP Class or an SOP MetaClass.
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. |
Pointer to the data set to be found.
Void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function.
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.
None.
A call to this function is generated on an SCP when L_DicomSendCGetRequest is called by the SCP.
To use this callback function, RECEIVECGETREQUESTCALLBACK must be set using L_DicomSetCallback.
Win32, x64
static HWND hList; /* handle to list box */L_VOID EXT_CALLBACK OnReceiveCGetRequest(HDICOMNET hNet, L_UCHAR nPresentationID, L_UINT16 nMessageID, L_TCHAR *pszClass, L_UINT16 nPriority, HDICOMDS hDS, L_VOID *pUserData){UNREFERENCED_PARAMETER(pUserData);L_TCHAR szMsg[800];L_TCHAR szAE[200];L_TCHAR szFile[L_MAXPATH];L_INT nRet;HDICOMDS hDSRet=NULL;HDICOMPDU hPDU;pDICOMELEMENT pElement=NULL;L_TCHAR *pszInstance=NULL;ListBox_AddString(hList, TEXT("Command Set - C-STORE-RESPONSE"));wsprintf(szMsg, TEXT(" Presentation ID: %d"), nPresentationID);ListBox_AddString(hList, szMsg);wsprintf(szMsg, TEXT(" Message ID: %d"), nMessageID);ListBox_AddString(hList, szMsg);wsprintf(szMsg, TEXT(" Affected SOP Class: %s"), pszClass);ListBox_AddString(hList, szMsg);wsprintf(szMsg, TEXT(" Priority: %d"), nPriority);ListBox_AddString(hList, szMsg);/* perform the get *//*here, the AE should check the data set, and performmatching against the files stored on the AE to determinewhat data set(s) should be sent back to the calling AE.In our case, we just send back a predetermined file forthis demo!*//* load the sample file *//* NOTE: this sample is looking for a particular filename TEST2.dcm */lstrcpy(szFile, MAKE_IMAGE_PATH(TEXT("IMAGE2.dcm")));hDSRet = L_DicomCreateDS(NULL);nRet = L_DicomLoadDS(hDSRet, szFile, 0);if (nRet != DICOM_SUCCESS)MessageBox(NULL, TEXT("Error Inside Callback Function"), TEXT("OnReceiveCGetRequest"), MB_OK);/* now, send a store command for the get sub-operation */hPDU = L_DicomGetAssociate(hNet);L_DicomGetCalling(hPDU, szAE, 200);pElement = L_DicomFindFirstElement(hDSRet, NULL, TAG_SOP_INSTANCE_UID, FALSE);if(pElement)pszInstance = L_DicomGetStringValue(hDSRet, pElement, 0, 1);nRet = L_DicomSendCStoreRequest(hNet, nPresentationID, nMessageID + 1, pszClass, pszInstance, nPriority, szAE, nMessageID, hDSRet);if (nRet != DICOM_SUCCESS)MessageBox(NULL, TEXT("Error Inside Callback Function"), TEXT("OnReceiveCGetRequest"), MB_OK);/* the above will cause a ReceiveCStoreResponse event on this machine *//* we will send a get response after we have received the CStoreResponse from the calling AE */L_DicomFreeDS(hDS);}