Solved

Maximum display and keypress resolution in applet/app

Posted on 2003-11-17
5
220 Views
Last Modified: 2010-03-31

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?
0
Comment
Question by:nsriram
  • 2
5 Comments
 
LVL 92

Expert Comment

by:objects
Comment Utility
> 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.
0
 

Author Comment

by:nsriram
Comment Utility
explain then how software software claims 1 msec response collection accuracy

as in   www.millisecond.com  (downloadable)

as well as www.pstnet.com

0
 
LVL 92

Accepted Solution

by:
objects earned 350 total points
Comment Utility
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.
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
countX 22 68
pairstar challenge 2 41
topping1 challenge 7 48
eclipse package explorer vs project explorer view 2 27
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now