> More than one kind of touchscreen. Some require 'some skin'=20
> to make the
> electrical reaction. If the application will be used by=20
> people with gloves
> on or long fingernails they won't work. Some others just need pressure
> applied. =20
It seems that most touchscreens now-a-days are the pressure-sensitive =
type. ELO Touch Systems(http://www.elotouchsystems.com/) is one of the =
leaders in the market-- they make some good touch LCDs, if space is a =
concern.
> Other than that, pretend you do not have a keyboard, everything is
> done with a mouse (if you don't have a touchscreen). Lots of=20
> cool things in
> Foxpro are useless in a touchscreen app because they can not=20
> be sized large
> enough for fingers to activate. Also put some space between things.
> Touchscreens go out of calibration and how often you have to=20
> recalibrate is
> dependent on how small and close together the buttons are.
> You will live in the click event on everything.
We designed our touchscreen app to use large containers with a serious =
button-effect(large border and "raised" effect). We wanted to change the =
color of the buttons, so regular command buttons were out of the =
question. We originally decided that each button needed to be at least =
as large as a US quarter.
--=20
Derek
©2003 Derek J. Kalweit |
