Maximum display and keypress resolution in applet/app


I understand that it is possible to be accurate to the millisecond (or 10 msec at the worst) in determing the latency of a keypress following a screen display (using directx?)..

is this possible using a java applet?  I have heard of a toolkit called SWT that allows hooking a directx interface to java apps under windows.

second question pertains to display time.. this depends on the refresh rate..

say if the display was at 120 hz, one could display a slide for around 10 msec (close to 9 msec) accurately (using directx in windows?)

would such a thing be possible using applet/app under windows?
nsriramAsked:
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Mick BarryJava DeveloperCommented:
> is this possible using a java applet?

applet should be no different to an application.

> would such a thing be possible using applet/app under windows?

I doubt you'll get that accuracy.
I'm not even sure the clock is that accurate unders Windows, seem to remember its onlt accurate to about 25ms.
nsriramAuthor Commented:
explain then how software software claims 1 msec response collection accuracy

as in   www.millisecond.com  (downloadable)

as well as www.pstnet.com

Mick BarryJava DeveloperCommented:
The following question:
http://www.experts-exchange.com/Programming/Programming_Languages/Java/Q_10106007.html

claims the foillwoing resolution:
Windows NT 3.5 and later <-> The system timer runs at approximately 10ms.
Windows NT 3.1 <-> The system timer runs at approximately 16ms.
Windows 95 and later <-> The system timer runs at approximately 55ms.'

And then there is thread sheduler to worry about.

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