Re: Activity timers


I am not sure, but according the documentation just one of this events will
be signaled. This events are manual reset events according the documentation
too. I think, then calling ResetEvent(Inactive) before calling the second
Wait would be necessary. ResetEvent(Active) would be necessary too after the
correpsonding Wait.

Edgar.

"voidcoder" <voidcoder@xxxxxxxxx> wrote in message
news:OP2k2kQZFHA.2796@xxxxxxxxxxxxxxxxxxxxxxx
> Could someone pls tell me why the following code does never
> return from the second WaitForSingleObject call !?
>
> HANDLE Active = OpenEvent(EVENT_ALL_ACCESS, FALSE,
> TEXT("PowerManager/SystemActivity_Active"));
> HANDLE Inactive = OpenEvent(EVENT_ALL_ACCESS, FALSE,
> TEXT("PowerManager/SystemActivity_Inactive"));
>
> if (WaitForSingleObject(Inactive, INFINITE) == WAIT_OBJECT_0)
> {
> if (WaitForSingleObject(Active, INFINITE) == WAIT_OBJECT_0) // <-
> Stall forever
> {
> // Some code
> }
> }
>
> I'd like to handle Inactive-to-Active transition state using activity
> timers but do not understand windows behaviour ... I'm able to
> wait for "Inactive" event, howether it stalls inside the second wait for
> "Active" event independent from the actual activity on the system.
> Any ideas?
>
> Thanks.
>
>


.

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