touchscreen

Background: I am working on a somewhat large Qt-based GUI which handles all user interaction with a touch screen. The program is designed such that the user should not need to access a command prompt in order to do anything, including recalibrating the touch screen. I have written an imitation of tslib's ts_calibrate utility which runs as a QWidget and can modify tslib's calibration file at /etc/pointercal . However, although I can modify the calibration file, changes to the calibration do not seem to be applied until I close and restart the program. I have written a script which can handle re

I'm involved in writing a touchscreen application for a medical device. The program is kiosk-like, in that the start menu, etc, will not be accessible to the user, and the user will use an onscreen keyboard to type any text in the rare event that they need to. The spec'd screen size is 1280x1024. The question is this: What's the minimum touchable button size for a reasonable interface? I'm thinking that an American dime is a reasonable minimum size in all directions, with the reasoning being that a dime is about as small as we can expect people to feel with their fingers (it's got a diameter

I need to load some additional CSS to my page if its being viewed on a touch screen device like an ipad or iphone. Whats the easiest way to do this? Thanks Easiest is arguably http://www.modernizr.com/ . For iPad you can try: if (window.Touch) { alert("touch my ipad/iphone/ipod"); } else { alert("no touch!"); } I'd venture to guess that iPhone works the same way. You can also use CSS media queries to produce something like this: <link rel="stylesheet" media="all and (max-device-width: 480px)" href="iphone.css"> <link rel="stylesheet" media="all and (min-device-width: 481px) and (max-device

We are experiencing an issue related to Google Maps API V3 . The issue is that while we drag the Marker the map also starts dragging. We are experiencing this issue ONLY on Touch Screens in Windows 8 Environment + Internet Explorer , its fine on NORMAL screens / Mobile Screens - IPaid/ other browsers (Safari and FireFox). We used below solution, but it throws error ( eval javascript error ) in Internet Explorer9 and 10 : google.maps.event.addListener(marker, 'dragstart', function(){ mapObject.setOptions({ draggable: false }); }); google.maps.event.addListener(marker, 'dragend', function(){

I'm working on a website which requires mouseover menu's. I would not recommend mouseover menu's from an accessibility point of view, but it's pretty easy to implement using jQuery. The problem: we also need to support touchscreen devices (tablets). On such a device you don't have a mouse and, so the mouseover event is not working. I was hoping for jQuery to have a longpress event, but it doesn't. I did find a jQuery longclick plugin using Google, but it was for jQuery 1.4, so I'm not keen on using that. Also the jQuery plugin site is under maintenance at the moment, so that is not very

Tried both programmatically and manually modify the registry for both DisableCharmsHint and DisableTLcorner to 1 under EdgeUI of immersiveShell (to disable touch screen swipe edges), after restart nothing happens. Just want to disable the swipe from edges to prevent user from accessing other application but just my application as currently opened, and will later enable the swipe edges again once my application is closed (back to normal). the application running is a windows form (not WPF) c# app coming from the desktop and run in the windows 10 tablet. is there any other way to prevent user

Here's the scenario: I've written a gui using the python framework Kivy , and I want to run it on a raspberry pi with this touchscreen . I've done the installation fine, and TSLIB_FBDEVICE=/dev/fb1 TSLIB_TSDEVICE=/dev/input/touchscreen FRAMEBUFFER=/dev/fb1 nohup startx & gets the xwindow desktop gui running fine. I've been unable to get my kivy gui working, though. I was able to get a test tkinter application working ok, by setting the DISPLAY environment variable. I tried putting the following at the top of my kivy app, but to no avail: os.environ['SDL_VIDEODRIVER'] = 'fbcon' os.environ['SDL

I have created a ButtonField & a BitmapField like.. public class MyCanvas extends MainScreen implements FieldChangeListener { HorizontalFieldManager hfm; private Bitmap startBitmap; private BitmapField startBitmapField; private ButtonField okButton; MyCanvas() { hfm = new HorizontalFIeldManager(); startBitmap = Bitmap.getBitmapResource("start.png"); startBitmapField = new BitmapField(startBitmap); startBitmapField.setChangeListener(this); hfm.add(startBitmapField); okButton = new ButtonField("Ok", ButtonField.CONSUME_CLICK | ButtonField.NEVER_DIRTY); okButton.setChangeListener(this); hfm.add