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Questions tagged [backlight]

A backlight is a form of illumination used in liquid crystal displays (LCDs) used in mobile, calculators and TV sscreens.

A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light by themselves (unlike for example Cathode ray tube (CRT) displays), they need illumination (ambient light or a special light source) to produce a visible image.

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Rendering a 'backlit' effect for many individual texture

I was wondering if I could get some advice on the best way to approach this. I'm in the process of writing an emulator that runs old UK arcade fruit machines games that have 'feature boards'. The machines are similar to US slots. The actual board…
Henryg001
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Running full-screen Android application with screen/backlight off

Here's what I need to do. I want to use an Android tablet for science research, but I will need to programmatically control the screen/backlight. Specifically, there is a mode where my app will need to communicate with other systems via WiFi, play…
Bob
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how can I change the brightness of the keyboard backlight

I just the want to change the brightness of the backlit by programming. If should use the private API, never mind, just want to finish the function. Anyone can tell me which API should I to use?
RetVal
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How do i use the constant Full_Wake_Lock in android4.0?

Im trying to create a program to keep the keyboard backlight on if the screen is on. Im very new to android but i have been programming java for 6months. Im not sure how to use the constant Full_Wake_Lock to keep the kb lgiht on.
Adrian Le Roy Devezin
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How to disable highlight of static fields in Android studio?

enter image description hereIt annoys me. How to disable it? I tried to turn off the backlight via settings-color scheme, but i could not. there is simply no such section that is responsible for such highlighting. Maybe it's the tips? Or can't it be…
John
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Why ubuntu 22.04 USB cable keyboard lights do not light up

I have a laptop and I use an extra USB cable keyboard for it but its lights don't work in ubuntu system, my laptop's keyboard doesn't have a light function so I use an extra keyboard but it doesn't work lights either I am in the terminal xset -led 3…
Diyorbek Saidov
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Turning Back Light ON in windows CE

Is there any other way to turn ON the backlight in Windows CE?? Presently I am setting the event "PowerManager/ActivityTimer/UserActivity" which eventually keeps back light ON. I also want to monitor if there is activity on device like touch etc by…
Omkar
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Brightness issue in FreeBSD

I have newly installed FreeBSD on my laptop and I installed xfce on it , and I cannot change my brightness with fn keys and even on terminal ,no command works (xbacklight retuns "No outputs have backlight property") and there is no variable for…
raptor191
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How to turn off keyboard and lid lights for asus rog ubuntu 20.04 in SLEEP mode?

I have a ROG Strix G731G and I already downloaded and use the rogauracore from this repository https://github.com/wroberts/rogauracore.git. I use the sudo rogauracore black mode and the lights are off and everything is ok. It works fine when the…
Karla Kauffmann
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How to use the "Backlight" effect in the Wordpress plugin?

I am using mediaelement.js plugin for WordPress (v2.1.7) and want to display a video with this beautifull "Backlight" style which you can see here in action: http://mediaelementjs.com/examples/?name=backlight On this page there are two setup…
user853409
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How does Android handle backlight timeouts?

I am developing a simple app. I want to make sure that the simple calculation the app performs is stopped when the backlight times out. Does the OS handle this automatically? Does it "pause()" or "stop()" the foreground activity? Or do i need to set…
user820071
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what is the api to activate BLN in samsung galaxy S with BLN kernel modificaiton?

I want to create an application that will give a notification to the user on a specific event. it should be back light notification like BLN control is using. can someone tell me how to turn the light on - assuming I have the correct kernel…
oshai
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DragDockPanel problem with Silverlight 5 beta?

Has anyone have problem with using Silverlight 5 with backlight's DragDockPanel? When I have DragDockPanel or add a DragDockPanel in the DragDockPanelHost, there will be java script error : Line: 56 Error: Unhandled Error in Silverlight Application…
King
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How to control backlight with a button connect to a gpio?

I'm trying to increase/decrease backlight value on an embedded linux (yocto) with a button connected to a gpio I worked step by step, so, first of all, I added a kernel module which generates an interruption each time the button is pressed, it's…
Nico
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Android - how to toggle display backlight from activity

I have a special requirement with my Android tab (SM-T825) in which I need to programmatically turn on or off the display backlight but still be able to receive touch inputs. I tried various options as seen in multiple SO posts but none of them …
Babu James
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