Available in LEADTOOLS Medical Imaging toolkits. |
RECEIVECCANCELREQUESTCALLBACK
#include "ltdic.h"
L_VOID pEXT_CALLBACK Your Function(hNet, nPresentationID, nMessageID, pUserData)
HDICOMNET hNet; |
/* a DICOM Network handle */ |
L_UCHAR nPresentationID; |
/* presentation ID */ |
L_UINT16 nMessageID; |
/* message ID */ |
L_VOID * pUserData; |
/* pointer to additional data */ |
Notifies a connection that a C-CANCEL-REQ command was received. This function is available in the PACS Imaging.
Parameter |
Description |
hNet |
A DICOM Network handle. |
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. |
pUserData |
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. |
Returns
None.
Comments
A call to this function is generated on a peer member of a connection when L_DicomSendCCancelRequest is called.
To use this callback function, RECEIVECCANCELREQUESTCALLBACK must be set using L_DicomSetCallback.
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 |
Win32, x64
See Also
Functions: |
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Topics: |
Example
L_VOID EXT_CALLBACK OnReceiveCCancelRequest(HDICOMNET hNet, L_UCHAR nPresentationID, L_UINT16 nMessageID, L_VOID *pUserData) { UNREFERENCED_PARAMETER(pUserData); UNREFERENCED_PARAMETER(hNet); L_TCHAR szMsg[800]; /* note, this sample AE ignores C-CANCEL-REQUEST commands for simplicity */ wsprintf(szMsg, TEXT("C-CANCEL-REQUEST was received - %d - %d"),nPresentationID, nMessageID); MessageBox(NULL, szMsg, TEXT("Cancel"), MB_OK); }