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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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Windows: How to change monitor's backlight brightness

Ever since I've been using an external monitor with my laptop, when I need to change the backlight brightness I have to press the monitor's buttons to navigate through its menu and adjust the brightness. That is really a pain. It's too many button…
GetFree
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Is there a way to raise the backlight on an Android device through the official API?

What I've read seems to indicate that the only way to do it is to use unofficial APIs that are being locked down in Cupcake (1.5). Is this true?
Jeremy Logan
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Can I prevent screen timeout on Windows Phone 7?

In the CE based Windows Mobile you could prevent the screen back-light from timing out using the SetPowerRequirement and ReleasePowerRequirement API's like so: IntPtr handle = SetPowerRequirement("BKL1:", PowerState.FULL, 1, IntPtr.Zero, 0); //…
dkackman
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J2ME backlight

Is there any reliable way to support back-light in J2ME on multitude of models, other then pre-processing? Is there any library available that may handle the back-light for various phones out there? Regards.
SyRenity
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How to programmatically dim Mac backlit keyboard

Is there a way to programmatically dim a backlit keyboard on a Mac?
David
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How to change iPhone's Screen Display Color with Private APIs?

I have seen so many posts regarding the same but all are outdated or not working anymore. I am using iOS-Runtime-Headers and everything is just nicely setup. But it said that I can't find out the method in which I can set iPhone's screen display…
Hemang
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Is it possible to programmatically turn on the Macbook Pro's keyboard backlight for individual keys?

Although I have a feeling that this isn't technically possible, it's worth asking anyways. Is it possible to turn on the Macbook Pro's keyboard backlights for individual keys? I am working on a piece of grid-based software which allows the user to…
Nik Reiman
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Windows 7, notebook backlight turn on and off

I have seen topics about changing notebook's screen brightness, but the thing that actually is needed now is to turn on and off the backlight itself. By it i mean, that if backlight is turned off, then you can see image on-screen of notebook by…
Skydev
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Why the device suddenly shuts down itself while I using my hacky program?

I use my hacky program to "modulate" backlight between off and minimum. (I want really dim backlight sometimes and use both it and ScreenFilter simultaneously). However, in some modes when using it the device suddenly begins shutting down without…
Vi.
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Android Keep Screen On In App

I have an android app which runs a foreground service and while that service is running I would like to give the user the option to keep the screen on. I added to my settings preferences, a checkbox preference and if true, I would like to keep the…
user577732
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How to control keyboard's backlight using python on windows

I want to control my laptop's backlight keyboard using python. My platform is windows. I can't find any way of doing that.
infiniti ayush
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Android: How to turn off device screen's backlight without stopping the app

Is there a way to programmatically turn off the device screen's backlight (even if it will require a root access), without stopping the application. I've tried to set the minimum brightness level, but it keeps screen on. I need something that will…
Robert Apikyan
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Wire up key to adjust laptop backlight brightness?

I threw Windows 7 on a Cr-48, and I'm using the excellent SharpKeys to remap the laptop's F1-F10 keys to do what their little icons look like--such as volume up/down/mute, back/forward in browser, full-screen, etc. The problem is, as far as I can…
Ben Dilts
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Change Backlight Brightness on iPhone Programmatically

Does the SDK provide any way to change the brightness of the backlight, or turn it off temporarily?
Greg
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turn on/off hardware key backlight

Before i ask this question, i've realized it, but it is based on some conditions. Try1: Change the chmod of file '/sys/class/leds/button-backlight/brightness' to 777, the original file is readable but not writeable, then write '1' to this file to…
stardust
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