WdfRequestSetActivityId - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// wdfrequest.h

VOID WdfRequestSetActivityId(
  [in] WDFREQUEST Request,
  [in] LPGUID     ActivityId
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nf-wdfrequest-wdfrequestsetactivityid)

WdfRequestSetActivityId function

Description

[Applies to UMDF only]

The WdfRequestSetActivityId method associates an activity identifier with an I/O request.

Parameters

Request [in]

A handle to a framework request object.

ActivityId [in]

A pointer to the activity identifier GUID to store in the I/O request.

Remarks

Calling WdfRequestSetActivityId does not set an association with any previously present activity identifier. When the driver calls WdfRequestSetActivityId, any existing activity identifier is overwritten.

To set an association, retrieve the existing identifier by calling WdfRequestRetrieveActivityId and then associate the existing identifier with the new one by calling EventWriteTransfer.

The framework does not clear a request's activity identifier when the driver calls WdfRequestReuse.

For more information about activity identifiers, see Using Activity Identifiers.

See also

WdfRequestRetrieveActivityId

View the official Windows Driver Kit DDI reference

Edit description on GitHub