RECEIVECCANCELREQUESTCALLBACK
#include "ltdic.h"
L_VOID pEXT_CALLBACK Your Function(hNet, nPresentationID, nMessageID, pUserData)
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HDICOMNET hNet; |
/* a DICOM Network handle */ |
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L_UCHAR nPresentationID; |
/* presentation ID */ |
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L_UINT16 nMessageID; |
/* message ID */ |
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L_VOID * pUserData; |
/* pointer to additional data */ |
Notifies a connection that a C-CANCEL-REQ command was received. This function is available in the Medical Suite Toolkit.
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Parameter |
Description |
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hNet |
A DICOM Network handle. |
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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. |
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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. |
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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. |
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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
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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
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Functions: |
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Topics: |
Example
L_VOID L_EXPORT EXT_CALLBACK OnReceiveCCancelRequest (HDICOMNET hNet, L_UCHAR nPresentationID, L_UINT16 nMessageID, L_VOID *pUserData)
{
L_CHAR szMsg[800];
/* note, this sample AE ignores C-CANCEL-REQUEST commands for simplicity */
wsprintf(szMsg, "C-CANCEL-REQUEST was received - %d - %d",nPresentationID, nMessageID);
MessageBox(NULL, szMsg, "Cancel", MB_OK);
}