| LEADTOOLS DICOM C DLL Help > Callback Functions > CLOSECALLBACK | 
#include "ltdic.h"
L_VOID pEXT_CALLBACK Your Function(hNet, nError, hPeer, UserData)
| HDICOMNET hNet; | /* a DICOM Network handle */ | 
| L_INT nError; | /* error code */ | 
| HDICOMNET hPeer; | /* a DICOM Network handle */ | 
| L_VOID * UserData; | /* pointer to additional data */ | 
Notifies a member of a connection that the connection was closed. This function is available in the PACS Imaging.
| Parameter | Description | 
| hNet | The DICOM Network handle for the local member of the connection. | 
| nError | Error code. Refer to Return Codes. | 
| hPeer | The DICOM Network handle for the peer member of the connection. | 
| UserData | 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 by a call to L_DicomClose. The CLOSECALLBACK function is useful to both SCUs and SCPs and should be set by both SCU or SCP applications by calling L_DicomSetCallback.
To use this callback function, CLOSECALLBACK 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: | 
Example
For an example, refer to L_DicomConnect.