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Questions tagged [touchscreen]

A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. (Wikipedia)

A touchscreen is an electronic visual display that can detect the presence and location of a touch within the display area. Wikipedia

Newer touchscreen electronics are generally capacitive whereas older less expensive designs are resistive. Resistive screens need physical contact and are more prone to wear.

See also:

  • for issues in programming touch interfaces.
  • for issues with multiple touch interfaces.
  • for question about different finger/stylus motion in a UI.
  • for question about using the touch hardware to recognize a gesture.
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How do i get touch id in javascript from touchstart

touchsrat returns 3 arrays - targetTouches, chnagedTouches and touches. How do i figure out which touch triggered the event? I need the id so that i can track chnges from touchmove event Variation of e.touches, e.targetTouches and…
Martin
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Touch screen Qt Application

I am developing a application with Qt. I have a push button and I'm using signal/slot for setting a different text. The problem is that I want to use it with touch screen. I have the coordinates when I touch the screen. So far I can change the text…
Hanelore Ianoseck
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Touchscreen and Driver Installed but tslib Cannot Calibrate

I have cross-compiled the latest commit of tslib from github ( https://github.com/kergoth/tslib/commits/master ). My touchscreen is hooked up to my embedded board and I enabled the drivers from the vendor. When I boot and look at the output of 'cat…
PhilBot
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Android 4.x: detect mouse or touchscreen mode

There is an API to detect if Android 4.x (ICS or JB) is in touchscreen or mouse mode. Android can actually go from one mode to the other: if you are in mouse mode (a cursor is displayed) and you do a touchscreen press, the mouse will disappear. In…
gregoiregentil
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Which GUI toolkit would you use for a touchscreen interface?

The only experience I have so far with a touchscreen interface was one where everything was custom drawn, and I get the feeling it's not the most efficient way of doing it (even the most basic layout change is hell to make). I know plenty of GUI…
Drealmer
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touchscreen calibration

Is there an easy way, without using higher math, to calibrate a touchscreen? I have written my own LCD library and my own touchpad library, both do work great, but of course I need to calibrate the touchpad before it gets usable results. The only…
Joel Bodenmann
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WPF Multitouch - How to get all touchpoints?

We are evaluating touchscreen keyboards and for one we need to track 10 fingers at the same time. The problem is that the touchscreen driver is very wonky (and there is no fixed version). It sends out 2500+ events for the FrameReported event each…
user1417966
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How to implment touch funcationality on a PC running Windows using Jquery/Javascript?

I have implemented the touch functionality to my website using these code and it works fine for iPad/iPhone. // registering touch events function initTouchEvents() { // if a device is a touch device if (window.Touch) { …
Safran Ali
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BlackBerry 8900 - issues in full touch screen mode with two pushScreen()

This issue appears on BB 9800 when the device/emulator is in full touch mode (closed slider). I don't know if the issue appears on other TS devices (I have only this device). I have the MainScreen (MS) object (where almost entire application is…
tibi95
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Constant and high sampling rate for pen position on Tablet PC

For an experiment (training study with human subjects), I'm trying to record pen position on at tablet PC (Thinkpad X61t, Windows 7) at a constant and high (e.g., 100 Hz) sampling rate. Unfortunately we are currently getting only variable sampling…
Julius Verrel
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Keyboard on the screen in WinForms

I have developed a Windows Forms application which is used on a touchscreen computer. Is it possible to display a keyboard when the user clicks on an input box (textbox)? And how can i do that ?
Emil Dumbazu
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Qt compile error when use tslib with angstrom g++

In the above scenario I am getting the following compile error. Can someone tell me why? I am using the following doc as my guide line http://billforums.station51.net/viewtopic.php?f=8&t=15 ts_test.o: In function `main': ts_test.c:(.text+0x1d8):…
Tharanga
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xorg touchscreen: how to do not keep mouse over the latest click

I have a touchscreen with linux embedded, xorg and gtk3. My problem is that after a click the mouse pointer stucks over the clicked button making his color different from other buttons. What I would need is that the mouse pointer would go away after…
giuspen
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Qt: How to filter accidental (consecutive) MouseButtonRelease and MouseButtonPress events?

My problem is a poor resistive touch screen. When you drag your finger across the screen. The drag randomly cuts off because of the MouseButtonRelease event. I would like to fix this by filtering the mouseEvents and removing all consecutive…
Grina
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Midlet doesnt respond to touch in older touch screen phone

I am very new to j2me. I have developed a basic SMS Banking app. My app works in most phones which are touch and non touch devices (Samsung duos, Monte, Nokia 6120c …, Sony Ericson w300). But when I installed it in a Samsung SGH-D980 it installs and…
Kanishka
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