Help to catch & record a fast-changing variable 1

[ColdPhreze]

Ok, here it goes

I am writing an application that needs to use minimal system resources AND needs to be able to catch and record a fast-changing variable. It's fast enough that a timer interval of 1 is too slow.

FYI: the variable is one in a serial port class - not one I created, and is changing based on conditions external to the PC.

In a console app, I know I could poll in a loop, but that is cpu intensive, and I need forms in this app.

Is there any way I could set an event to occur when a variable changes value? Or can I somehow poll at 0.1 millisecond intervals?

Thank you very much,
KyferEz

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[chrissie1]

Poll in a loop in a different thread.
Do some research on threading.

But there is a serialport component that has events? One of them ebing DataReceived. At least in the 2.0 framework.

Christiaan Baes
Belgium

"My new site" - Me

 

[ColdPhreze]

Thanks again Christiaan. You are very helpful.

I think threads could work, but what you mentioned about the component having events got me checking into it more, and man I feel like an idiot now. You are right, the class does have the ability to throw an event any time a it recieves data or a status line changes state.

FYI: The free serial port class I'm using is available here:

http://www.codeworks.it/net/VBNetRs232.htm

Thanks
KyferEz

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