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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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Reload tslib touch screen calibration

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…
Jason Plank
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Why are touch screen coordinates given in floats?

I'm using Android Studio and I notice that getting the coordinates of a touch returns the float data type. I've always seen screen coordinates represented as ints which makes sense when you're looking at pixels. Does android divide them somehow or…
Mindril
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How can I remove on-screen keys in Eclipse built Android application

I developed a view based application for Android but I get navigation keys on the touch screen, up/down/select/ok. I do not need these keys and I want to remove them so that they don't show on the screen so that the application displays full screen.…
Ralph El Helou
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Using a touchscreen to Scroll a Panel while dragging the Panel's controls

My Form has a scrollable Panel that can be scrolled using a touchscreen monitor. My Panel will contain a TableLayoutPanel with Buttons inside of it. I can use a MouseWheel to scroll the Panel fine, no matter where my cursor is. Using a…
Capellan
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How do I capture when a finger touches the screen and when a finger is removed from a screen on touchscreen device

I am developing an app for a touchscreen and I would like to capture the equivalent of the mouse down and mouse up events. For example, when the user has their finger touching the screen, a javascript function will execute, but when the finger…
Globalz
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WPF button press on Windows 7 mulit-touch

I am developing a WPF kiosk like client that will be deployed on an HP TouchSmart Windows 7 machine with multi-touch enabled. My problem is that with Windows 7 multi-touch, the application does not recognize a finger 'tap' as a button press event,…
Jared Knipp
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Simulate multitouch events with uinput

Hi everyone and thanks for reading. I am trying to use uinput interface to perform some touches. Eventually, these data will be interpreted from a serial connection through UART. I can open, close, etc. uinput and it works fine for mono-touch.…
GautierD
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WPF touchscreen events not working properly

I've created a WPF touchscreen application at work. When I use a mouse, it behaves as you would expect. However, when using the touchscreen it doesn't behave as it should. It will regularly lag on a PreviewMouseDown touch event, and sometimes won't…
Saoirse
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How to directly send touch events to /dev/input/event?

I want to send touch events throughout Android system. I'm sending events from a background service. My device is rooted and I've stored my app in /system/app. I tried instrumentation and system/bin/input tab, instrumentation didn't work outside…
Dania
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Resize combobox arrow

I'm writing a touch screen .net winforms application and need a combobox with a larger dropdown arrow. Is there any way to resize the arrow, or am I looking at writing a custom control?
Stan
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Scroll not working on mobile within a specific DIV

I'm working on making a part of our website responsive and have found that that scrolling on mobile is not working within a specific div, if the users uses the touch screen to try and scroll within this div, it does not work. In the picture below…
Holly
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Stop displaying keyboard on mobile/tablet when focusing to input

I am trying to develop a PHP Web Interface an Inventory Application. Also, I intend to use this application for TouchScreen Devises like Tablets. There are many forms which needs to be filled within my application besides other touchscreen friendly…
Sergiu Costas
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How to detect onclick event only smart phone and tablet using javascript?

How to detect onclick event only smart phone and tablet using javascript ? https://jsfiddle.net/d87zjbLp/3/ i use this code, but i want to call function myFunction() only on smart phone and tablet only (not on pc and notebook) How can i do that…
mongmong seesee
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UI components for touch screen winforms applications?

I have seen this question: Are there any decent UI components for touch screen web applications? and have allmost exact the same question but Im focused on winforms. I working on an application that is not primary made for using with a touch…
Stefan
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How do I close the on-screen keyboard from C# winform and cancel any CTRL or ALT keypresses

Hi I have an issue with a .NET touchscreen application in Win7 (no PC keyboard connected). I am using part of the app to act as a terminal window to an external device. When the terminal window opens, I start the on screen keyboard by calling:-…
AHP
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