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timer in thread (ie createwaitabletimer for 9.x)

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  • Neil Hosgood
    replied
    That did it, and with alot less code changes
    thanx guys.

    N.

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  • Guest
    Guest replied
    That's correct. Or in another variation using the WM_TIMER message, you could let the timer continue firing while waiting for the worker thread to signal an event when it has completed its work. Until the event is signaled by the thread the code associated with the WM_TIMER message does nothing.

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  • Neil Hosgood
    replied
    Thanks Ron, will have a good look at that.
    I take it that by using a separate timer proc the
    waitforsingleobject wont hold up the main message queue ?




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  • Guest
    Guest replied
    In your Timer process (don't use WM_TIMER message for the timer) you could call SetEvent as michael suggested then in the timer proc wait for another event (WaitForSingleObject) your thread will signal with SetEvent when it has finished it task. Depending upon the timing required you might even want to look at the multimedia timers. They are very accurate and better for this type of use I feel.

    Ron

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  • Neil Hosgood
    replied
    Michael.

    I thought of that, but from what I read the second thread
    cant reset the timer, Only the thread that owns the dialog
    can ?
    when the timer fires I need to be able to kill the timer
    so it doesnt fire again while the second thread is still
    working from the first time the timer fired. When the second
    thread is done it needs to restart the timer and go back into
    a waitstate.

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  • Michael Mattias
    replied
    Instead of a timer in the "worker" thread, you can leave your timer in the mian thread. When the WM_TIMER message is received, you do a SetEvent of an event you created with CreateEvent.

    The "worker" thread does its "Waitfor" on the Event, rather than on the timer.

    MCM


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  • timer in thread (ie createwaitabletimer for 9.x)

    Hi people,

    How does one create a timer in a thread that does not have
    a dialog? pretty much like CreatWaitableTimer under NT.
    Cant use sleep cos I am using waitForMultipleObjects and waiting
    for a button click aswell as a timer. I can create a timer in
    the main thread and set an event to triger the waitfor when the
    timer fires, but the thread cant reset the timer in the
    main thread when its done ?

    Any ideas ?

    TA.

    NJH.




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