The Intel ME WMI provider publishes WMI events that reflect real-time changes in the current firmware state and are an extension to the WS-Eventing mechanism. Since WMI-events represent changes in firmware state and they are not linked directly to changes in the WMI data model, they are implemented as Extrinsic Events and derived from the _ExtrinsicEvent class.
_ExtrinsicEvent Class
This class defines the structure of extrinsic events messages.
ME_Event : __ExtrinsicEvent {
uint8 Category; // Event category
uint32 ID; // Event ID
string Message; // Detailed message
datetime CreationTime; // Event creation time
};
Sample Code
The following Visual Basic sample demonstrates receiving Intel ME WMI provider events.
strComputer = "."
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\Intel_ME")
Set objEvents = objWMIService.ExecNotificationQuery _
("SELECT * FROM ME_Event")
Wscript.Echo "Waiting for events ..."
Do While(True)
Set objReceivedEvent = objEvents.NextEvent
'report an event
Wscript.Echo "ME_Event event has occurred:"
Wscript.Echo " Message: " & objReceivedEvent.Message
Wscript.Echo " ID: " & objReceivedEvent.ID
Wscript.Echo " Category: " & objReceivedEvent.Category
Wscript.Echo " CreationTime: " & WMIDateStringToDate(objReceivedEvent.CreationTime)
Loop
Function WMIDateStringToDate(dtmDate)
WMIDateStringToDate = CDate(Mid(dtmDate, 5, 2) & "/" & _
Mid(dtmDate, 7, 2) & "/" & Left(dtmDate, 4) _
& " " & Mid (dtmDate, 9, 2) & ":" & Mid(dtmDate, 11, 2) & ":" & Mid(dtmDate,13, 2))
End Function
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