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The FltGetActivityIdCallbackData routine retrieves the current activity ID associated with a request in a minifilter's callback data.
Syntax
NTSTATUS FLTAPI FltGetActivityIdCallbackData(
[in] PFLT_CALLBACK_DATA CallbackData,
[out] LPGUID Guid
);
Parameters
[in] CallbackData
A pointer to the callback data containing the request with an associated activity ID.
[out] Guid
A pointer to the GUID structure receiving the activity ID.
Return value
FltGetActivityIdCallbackData returns one of the following NTSTATUS values.
| Return code | Description |
|---|---|
|
The callback data does not contain a request for an IRP operation. |
|
No activity ID is associated with the request in CallbackData. |
|
An activity ID was returned in the GUID value pointed to by Guid. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 8. |
| Target Platform | Universal |
| Header | fltkernel.h (include Fltkernel.h) |
| Library | FltMgr.lib |
| DLL | Fltmgr.sys |
| IRQL | <= DISPATCH_LEVEL |