AcxEventAddEventData function (acxevents.h)
The AcxEventAddEventData function adds event data to an ACXEVENT object.
Syntax
void AcxEventAddEventData(
ACXEVENT Event,
ACXEVENTDATA EventData
);
Parameters
Event
The ACXEVENT object (described in Summary of ACX Objects).
EventData
The ACXEVENTDATA ACX object.
Return value
None
Remarks
An ACXEVENTDATA represents the EVENT obj from the client.
An ACXEVENT represents an asynchronous notification available at the driver level. Events can be added to ACXCIRCUITs, ACXSTREAMs, ACXELEMENTs and ACXPINs. Internally they are exposed as KS Events to upper layers. For more information about KS Events, see KS Events.
Example
This sample shows the use of AcxEventAddEventData.
VOID
CodecR_EvtMuteElementChangeEventCallback(
_In_ ACXOBJECT Object,
_In_ ACXEVENT Event,
_In_ ACX_EVENT_VERB Verb,
_In_opt_ ACXEVENTDATA EventData,
_In_opt_ WDFREQUEST Request
)
{
...
AcxEventAddEventData(Event, EventData);
...
}
ACX requirements
Minimum ACX version: 1.0
For more information about ACX versions, see ACX version overview.
Requirements
| Requirement | Value |
|---|---|
| Header | acxevents.h |
| IRQL | PASSIVE_LEVEL |