How to check the value of varial haven't changed for a ceratin period of time?

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VS2010

Hi Every.One!

I need to check the value of a variable for if it has changed or is constant(slight variation allowed) in fixed duration of time(say 2sec).

I thought of running a parallel thread that keeps checking the variable after a certain sleep() duration but that slows down the application.

Any other idea?

Thanks!

Posted 12-Jun-11 9:11am

AmarjeetAlien

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Sergey Alexandrovich Kryukov 12-Jun-11 16:29pm

What do you need for a trigger of this check? A time or an addressing of this variable? Also, why? What's the ultimate purpose of this technique?
Checking in thread is really bad. But answer my questions first?
--SA

AmarjeetAlien 13-Jun-11 1:41am

What do you need for a trigger of this check?
->A slightly constant value of this variable over a small duration of time.
A time or an addressing of this variable?
->Both.I think.
why? What's the ultimate purpose of this technique?
->Please read the comments of you answer(--SA) on this thread:http://www.codeproject.com/Questions/209985/How-to-manually-set-mouse-events

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Ruard · Accepted Answer · 2011-06-12T09:21:00

Solution 1

I guess you could use a timer. This timer shouldn't slow your application:

http://msdn.microsoft.com/en-us/library/system.threading.timer.aspx[^]

But why this approach?
Isn't it easier to use a property which fires an event when the value changes (when variation is more than x%)?

Posted 12-Jun-11 9:21am

Ruard

Updated 12-Jun-11 9:23am

v2

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Sergey Alexandrovich Kryukov 12-Jun-11 16:29pm

So what? How it solves the problem?
--SA