NegativeScreen

Version Française ici


NegativeScreen is a Windows application allowing you to invert your screen colors.
Apart from accessibility matters, this software is especially useful when you are surfing on the internet in a dark room, and the screen is dazzling you.

NegativeScreen was designed to work without impacting the performances and fluidity of your computer.
Unlike the Windows Magnifier, which is also capable of such color inversion, it was specifically designed to be easy and convenient to use.

Different inversion modes are provided, including “smart” modes, allowing blacks and whites inversion, while keeping colors (about) the sames.

Normal

Simple Inversion

Smart Inversion


 

Usage

 

The color inversion takes effect immediately after starting the program.

NegativeScreen comes with a minimal graphic interface in the form of a system tray icon with a context menu.
You can toggle the inversion by clicking the tray icon, and access more features by right clicking it.

Along with these commands, you can also control NegativeScreen only by using hot keys. Read on…

 

Default hot keys

Win+Alt+H: Halt immediately the program
Win+Alt+N: switch between normal mode and colors inversion mode (Night vision :))

Win+Alt+F1-to-F11: change inversion mode:

F1: standard inversion
F2: smart inversion 1 – theoretical optimal transformation (but ugly desaturated pure colors)
F3: smart inversion 2 – high saturation, good pure colors
F4: smart inversion 3 – overall desaturated, yellows and blues plain bad, actually relaxing and very usable
F5: smart inversion 4 – high saturation, yellows and blues plain bad, actually quite readable
F6: smart inversion 5 – not so readable, good colors. (CMY colors a bit desaturated, still more saturated than normal)
F7: negative sepia
F8: negative gray scale
F9: negative red
F10: red
F11: grayscale

Keep in mind you can always change these defaults by editing the configuration file.

 

Configuration

The version 2.0 (and 1.13) introduces a configuration file allowing to tweak almost everything in NegativeScreen.

You can now choose your own hot keys if you don’t like the defaults, and you can even add you own color effects!
This requires some knowledge in color matrices though.
I may add an easy way to build some in a future version…

If the configuration file (negativescreen.conf) is missing, you can use the “Edit Configuration” menu to regenerate the default one.

Should something go wrong after edition (bad hot key…), you can simply delete the configuration file, the internal default configuration will be used.

 

Windows XP Version

 

Unfortunately, the Windows Magnification API this application uses, is not available on Windows XP.
Therefore, I’m sorry to tell, there will be no XP compatible version of NegativeScreen.

 

Downloads

 

NegativeScreen is freely available, along with its source code, under GPL license.

 

Latest binary version (if you don’t know what to download, take this one)

Legacy binary version (no GUI, but works under Windows Vista)

C# sources

ColorMatrix Viewer. Another program to easily view and edit color matrices…

 

► ChangeLog (click to unfold)

Version 2.5, 2017-05-28
------------------------
- [fixed] when an instance is already running, enable its color effect instead of showing an unhelpful message about it
- [fixed] no longer crash when trying to set a color effect while the Windows Magnifier color inversion is enabled
- [added] a basic web api is now part of NegativeScreen! See the readme for more information
- [added] new EnableApi configuration option, defaults to false
- [added] new ApiListeningUri configuration option, defaults to listening on port 8990, localhost only
- [added] new About window, available from the systray menu
- [added] add a retro-compatible user-specific fallback location for the configuration file:
		- if the file "%AppData%/NegativeScreen/negativescreen.conf" exists, it will be used in priority.
		- if the "negativescreen.conf" file beside the executable cannot be modified,
			trying to edit the current configuration will result in a configuration in AppData being created.

Version 2.4, 2014-11-30
------------------------
- [fixed] force the working directory to be the one of the executable (so the .conf file is found when starting from the cli)

Version 2.3, 2014-03-28
------------------------
- [fixed] crash if more than one custom color effect is added without an associated hot key
- [added] (re)added the ShowAeroWarning configuration option from the version 1.*
- [added] check box next to the current color effect in the right click menu

Version 2.2, 2013-02-17
------------------------
- [fixed] avoid crash if a hot key cannot be registered
- [added] new ActiveOnStartup configuration option

Version 2.1, 2012-12-22
------------------------
- [fixed] crash on Windows 8 due to inter-threads calls
		(this was not a problem on Windows 7)
- [added] new MainLoopRefreshTime configuration option

Version 2.0, 2012-12-14
------------------------
Major update:
	- reworked entirely
	- better performances
	- smooth transitions
	- graphic interface (minimal)
	- configuration file:
		- fine grained configuration
		- custom hotkeys
		- custom color effects

Version 1.14, 2014-11-30
------------------------
- [fixed] force the working directory to be the one of the executable (so the .conf file is found when starting from the cli)

Version 1.13, 2013-07-04
------------------------
- [added] implemented the configuration file for the version 1.*
- [added] configuration option to disable the message warning about aero being disabled

Version 1.12, 2012-12-14
------------------------
- [fixed] crash on Windows 8

Version 1.11, 2012-06-26
------------------------
- [added] new red and negative red filters bound on F9 and F10

Version 1.10, 2012-05-15
------------------------
- [fixed] infinite flickering on Vista (introduced in 1.8)

Version 1.9, 2012-04-16
------------------------
- [fixed] stupid bug if the Windows taskbar is vertical
		
Version 1.8, 2012-03-22
------------------------
- [fixed] execution is no longer prevented if aero is disabled (previous bug corrected)
		however, the performances will still be horrible

Version 1.7, 2012-03-21
------------------------
- [fixed] works as expected when using custom DPI settings
		
Version 1.6, 2012-02-27
------------------------
- [fixed] crash on X86 on launch
- [fixed] prevent execution if aero is disabled
		(prevent undesirable behaviours: black screens, 100% CPU usage...)

Version 1.5, 2012-02-16
------------------------
- [fixed] (internal) ColorMatrix implementation
- [added] new feature: choice between 9 inversion modes
		(smart mode, etc... see readme for details)

Version 1.4, 2012-02-09
------------------------
- [fixed] does not crash anymore on Windows Vista

Version 1.3, 2012-02-01
------------------------
- [fixed] multi-screen should finally work!
		after a lot of tests and coding, I re-thought completely the architecture
- [knownbug] in some screen configurations, if the primary screen if smaller than the other screen,
		 the second larger screen has a black border at its bottom.
		 It could be a bug in the Windows API...

Version 1.2, 2011-09-18
------------------------
- [fixed] multi-screen support (again) : bug with main screen on the right

Version 1.1, 2011-09-13
------------------------
- [fixed] multi-screen support
- [fixed] when halted while paused, the application never stopped

Version 1.0, 2011-09-06
------------------------
- Initial release

If you are interested in technical details, you can read the following post, recounting the development of this project (in French).

  • #1 written by Dominik
    about 3 months ago

    Hey,
    Is it possible to add an option of “do not apply any effects after running”?
    I would like to add this program to start-up so I could use key combinations when needed. 🙂

    • #2 written by Melvyn
      about 3 months ago

      Sure!
      Setting “ActiveOnStartup=false” (instead of true) in the config file will do just that!

  • #3 written by CJay
    about 3 months ago

    I use this as a makeshift colorblind mode for Overwatch with a simple matrix that switches the red and green channels, works like a charm! Thanks!

    • #4 written by Melvyn
      about 3 months ago

      Great use case! 😀

      • #5 written by CJay
        about 3 months ago

        Just a heads up: the Windows 10 Creators update added something called “Full Screen Optimizations” which disables the color transformation effect for borderless fullscreen windows. It can be disabled per-application in the properties of the .exe file. Just spent 15 minutes wondering why the effect was disabled in Overwatch after updating Windows. :/

  • #6 written by lr
    about 3 months ago

    This is awesome. Thanks so much for writing this!

  • #7 written by Vaquero
    about 3 months ago

    Hey! I just saw that it was you who had put together a chocolatey package for negativescreen. Unfortunately the package is broken and outdated. Would you be so kind to consider updating the package and maybe create one for your ColorMatrix Viewer as well? This would be awesome!

    • #8 written by Melvyn
      about 3 months ago

      Yeah my bad, I haven’t really put the effort into this package. You are right, I will try to do a better job…

  • #9 written by Chad Zenisek
    about 3 months ago

    This application is really amazing. The “smart inversion” setting, together with it’s alternative options, exceeds my expectations. I would readily pay for this.

    • #10 written by Melvyn
      about 3 months ago

      Well, you can still make a donation… ^^

  • #11 written by Laur
    about 4 months ago

    Hi. I very much like the Neg.Screen program. But it is not running smoothly with Chrome under Win10. It does make negative all other programs unde Win10 but Chrome remains the same. What could be the fault?

    • #12 written by Laur
      about 4 months ago

      P.S. When moving cursor on a hyperlink, it goes to negative but when just on plain surface, it wont go to negative (although the program is up and running).

      • #13 written by Melvyn
        about 4 months ago

        The cursor is never supposed to be inverted. This is a limitation of the current version. I should probably try to work on it…

    • #14 written by Melvyn
      about 4 months ago

      I’m not sure what causes this, but you are not the first to report a similar problem.
      What kind of graphic card do you use?

      It seems a workaround is to disable hardware acceleration in the Chrome advanced settings.

  • #15 written by Joji
    about 4 months ago

    Hello,

    This is a awesome program, but i have 2 monitors and i only want it to one screen, can you please help me to how to do it

    Thanks.

  • #16 written by Kasper Nielsen
    about 4 months ago

    Thanks developer this was my solution, from having to quit my job due to headache and eyestrain , unable to look at letters for more than 5-10 minutes without problems.
    i don’t even have to use Glasses anymore..

    So thank you so much, i hope you realize that you have helped a lot of people by presenting this solution to eye strain problems due to brigth pixels on LCD monitors and having jobs that requires to look at the monitor 8 hours a day…

    Alsothe problem will not go away, as we get more digitalized the issue will be more spreading in years to come, so people will continue to cherish this application i’m sure.

  • #17 written by CptPhillips
    about 5 months ago

    As a person with a retina vision impairment, I love this program. Apologies if this has already been asked but is it possible to invert all the text and backgrounds but not invert the images?

    • #18 written by Melvyn
      about 4 months ago

      Sorry, but no, this is not possible. The API used by NegativeScreen is only all or nothing.

      • #19 written by field marshal bobjones
        about 4 months ago

        couldn’t you make a better, more customisable API?

        • #20 written by Melvyn
          about 4 months ago

          What do you mean by that? Any specific idea to suggest?

  • #21 written by Jimmy
    about 5 months ago

    OMG, I think I’m falling in love with this app!

    Is it possible to switch the Windows app mode from dark to light when the app is on? Is it possible to change the desktop background when the app is on too? Running Win10 without this awesome app, I use the Win10’s dark app mode, a black desktop background, and a black taskbar. It’d be really slick for the app to keep those things black when the app is on too.

    Cheers!
    Jimmy

  • #22 written by Maxim Vadimsky
    about 5 months ago

    Your code made me happy. Thanks)

  • #23 written by carnifexx
    about 5 months ago

    This works fine under win10x64, I am so happy to finally find a solution to change the view to greyscale and back at any time. This helps me so much with photo-edeting, only Picasa used to have this feature as well, thank you for all you work <3

  • #24 written by axy_david
    about 6 months ago

    Hi, would it be possible to put screen brightness at the lowest when activating inverted mode?

    • #25 written by Melvyn
      about 6 months ago

      This is not currently possible.
      I’m not sure this can be done in a universally compatible way without too much trouble…

  • #26 written by Miroslav Houdek
    about 6 months ago

    Thank you so so much, you are my hero, you are nothing short of genius! I have been wishing for app like this to exist for almost a decade and now finally, I can try what it would be like to have my screen in monochrome 😀 It’s so gorgeous, can’t take my eyes off of it!

    • #27 written by Melvyn
      about 6 months ago

      Haha, thanks for sharing your enthusiasm 🙂

  • #28 written by Max
    about 6 months ago

    Great! Is there a way to increase the brightness?

  • #29 written by Bob
    about 8 months ago

    Great program. I’ve been using magnifier until I found this and the quick toggle is neat. I run a multi-monitor setup and was wondering how difficult it would be to have the option to select which monitors have inversion and which don’t. Thanks.

  • #31 written by fluidity
    about 8 months ago

    Hey there, been using this for years–haven’t found anything like this on Mac. I’m pretty handy in Xcode, Xamarin, and some C#…, and I see this is open source.. Is this possible to do on mac (Smart Inversion) perhaps something with the ICC profiles? Would love to see a Mac release and I’m looking for a new project 😉 Feel free to email.

    • #32 written by Melvyn
      about 8 months ago

      Thanks for your interest.
      I don’t use a Mac and since NegativeScreen uses Windows API, the useful part of the code is not directly portable.
      That said, if you find a way to apply a color matrix transformation to the entire display on Mac, you could relatively easily port most if not all NegativeScreen’s features to this platform, including smart inversion.

      Regarding ICC profiles, I briefly looked into it at the very beginning of the project, but did not find an obvious way to use color matrices, or any other mean to dramatically change the colors.

  • #33 written by Burr
    about 8 months ago

    This is great! Tnx

  • #34 written by Joe
    about 8 months ago

    Awesome program. Just thought I’d share my negative-green preset, designed to imitate the appearance of an old green-phosphor monochrome CRT or the display in The Matrix. I find it fairly pleasant to use in a dark room.

    Grayscaling is by the formula used for Y in YUV. Green reaches full intensity at about 80% black. Darker than that and some red and blue are added to make a lighter green that “blooms”. This gives about as authentic an appearance as you can get without a pixel shader to bleed bright pixels into neighbors. The “blooming” green effect also improves the appearance of ClearType text over a plain negative-green based on the negative-red effect included with the program.

    { -0.4485, -0.37375, -0.4485, 0.0, 0.0 }
    { -0.8805, -0.73375, -0.8805, 0.0, 0.0 }
    { -0.171 , -0.1425 , -0.171 , 0.0, 0.0 }
    { 0.0 , 0.0 , 0.0 , 1.0, 0.0 }
    { 0.3 , 1.25 , 0.3 , 0.0, 1.0 }

    • #35 written by Melvyn
      about 8 months ago

      I’m glad you like it!
      Thanks for your contribution 🙂

  • #36 written by Resurgo
    about 8 months ago

    I was wondering, it invert’s both saturation and color. is there a way to keep the saturation as is?

    • #37 written by Melvyn
      about 8 months ago

      Saturation is part of a color’s properties in a HSB model, and I don’t think it makes sense to “invert” a hue, saturation, or brightness, so I’m not sure I understand what you mean.
      The simple negative matrix is just applying the formula y=-1*x+1 to each color channel (RBG) where x is the original channel value, and y is the resulting value.

  • #38 written by Sat
    about 9 months ago

    Can this program invert colors specific windows or applications, like only WordPad?

  • #40 written by allanaes
    about 9 months ago

    Thanks a lot for creating this useful application, really helpful for reading PDF at night. For this purpose, I add custom matrix (F12 seems unassigned :)) based on grayscale just to dim white or any contrast colors.

  • #41 written by amit patel
    about 9 months ago

    thanks for the great software Melvyn
    if is there any way to make all the colors go black except for the pure white (255)
    please help me out it’s like a life saving tool dude 🙂

    • #42 written by Melvyn
      about 9 months ago

      You want to make everything go black except pure white?
      The result are not very useful in my opinion, but you could try with this matrix:
      { 600, 600, 600, 0, 0 }
      { 1200, 1200, 1200, 0, 0 }
      { 200, 200, 200, 0, 0 }
      { 1000, 1000, 1000, 1, 0 }
      { -2999, -2999, -2999, 0, 1 }

      • #43 written by amit patel
        about 9 months ago

        Thanks, man, I know it’s not very useful for you, but it’s going to help me find the error we get from the e-commerce website.
        sometimes we mistakenly leave not pure white (254 to 250) background, and it’s hard to see the difference, opening every image in Photoshop is not possible so now you now you save us from a headache thanks. 🙂

        • #44 written by Melvyn
          about 9 months ago

          Ah, I guess that makes sense. Well I’m glad you find it useful. 🙂

  • #45 written by Frank Becker
    about 9 months ago

    Hello,
    thank you a lot for NegativeScreen and for your good work. I use it on my PC and on my tablet. The PC runs with Win10 Pro, the tablet with Win10 Home. Both are on the same release and build. From one day to another NegativeScreen quits with an error message. It tells I should install .NET 4.0.30319. I was not sure if I have .NET installed so I downloaded the current version from Microsoft and tried to install it. But the installer of .NET says, it is already installed.
    On the PC NegativeScreen runs fine as usual.

    Please can you help me to fix this error? I’m so happy with the program. Because of my visual disabilities I need a dark background an white forground.

    Thank you a lot
    Frank

  • #46 written by ScriptWang
    about 11 months ago

    BUG submit:
    It is will be disabled by mistake when turning on full screen in some video website like youtube , It is
    just happened in windows 10 .

  • #47 written by JL
    about 12 months ago

    Needless to say, your program is really amazing. I just want to point out a technical issue. The only weakness of this program is ClearType™, a sub-pixel font rendering technology, supported by Microsoft. Why? Well.. the following is just my guess for this situation. ClearType™ depends on the assumption that subpixel arrangement of LCD display usually follows R,G,B order, from left to right. However, unfortuantely, this reasonable assumption does not make sense for us, who are using the “brightness” inversion only, and leaving “hue” intact.

    Actually, I prefer to use the option, [F4: smart inversion 3], however, this inversion cannot convert black letters into purely white letters, but into bright pink letters, which is, of course, not a desirable result. (But if you try to invert the black letters in MS Word 2016 with NegativeScreen, you will get purely white letters. That’s because MS Word 2016 has abandoned these ClearType™ things from font rendering.)

    One way to avoid such pink letters is “to enlarge the font size of Windows to 150%”, (you can find that option at “Display Settings”) because it reduces such bad, unintended effect of subpixel rendering.

    • #48 written by Melvyn
      about 11 months ago

      Thank you.
      Yes you are right, ClearType is a huge annoyance when using the smart inversion modes…
      Unfortunately, disabling it, while it does remove the pink fringe, does not really improve the readability, so as you noted in another comment, it’s not a proper solution. (Besides, not all applications use the native ClearType, so it’s not even always an option)
      I guess enlarging the font size works because characters become much bigger than sub-pixels, so it’s less noticeable. But not everyone will be happy with such a solution 🙂
      As high-dpi screens become more widespread, this will hopefully become less of an issue.

  • #49 written by Chris
    about 12 months ago

    I love this tool and use it every day! Thank you!

    Would it be possible to configure the tool to NOT adjust the colors of specific applications? I have some applications that are already dark and would like to leave those untouched.

    • #50 written by Melvyn
      about 11 months ago

      Disabling inversion only for specific applications is not possible and it will most probably stay this way because it’s technically impossible with the current implementation. Sorry.

  • #51 written by Nyiko
    about 1 year ago

    Hello,

    Im using the software on windows 7 Panasonic FZ-M1 Personal computer tablet. The top part of the screen does not show when i turn on to any mode. The mode does activate but only the bottom part of the screen can be seen. I would attach a screen shot of my screen if the was an option to attach a photo

    • #52 written by Melvyn
      about 11 months ago

      You are probably experiencing a known bug, occurring on portrait mode displays… (I guess you are using your tablet vertically?)
      I unfortunately can’t do much about it, since the bug is present inside the Microsoft API NegativeScreen is using.
      To convince yourself, you can try to use the Windows Magnifier, and set it to invert the screen’s colors. You will probably notice the same behaviour as with NegativeScreen.

      • #53 written by Federico Sturlese
        about 10 months ago


        Nyiko:

        Hello,
        Im using the software on windows 7 Panasonic FZ-M1 Personal computer tablet. The top part of the screen does not show when i turn on to any mode. The mode does activate but only the bottom part of the screen can be seen. I would attach a screen shot of my screen if the was an option to attach a photo

        Hello, I just wanted to point out that if you download the legacy version (1.4) it will work in portrait mode as well, as long as you can survive without the improvements of the latest versions.

  • #54 written by Mario
    about 1 year ago

    Just wanted to thank you as it is an amazing tool to help with eye stress. Have a great day.

  • #56 written by john
    about 1 year ago

    Is it possible to run the application on windows startup without inverting the colors? so that it is only running in the background and when needed can be used with the hotkeys?

  • #58 written by Andreas
    about 1 year ago

    Any Chance to get the Multi-Screen Feature again?
    So that it is possible to use the tool only on a dedicated screen in a Multi-Screen System? Or even on a single Program-Window?

    Thx

    • #59 written by Melvyn
      about 1 year ago

      This is unfortunately not possible with the better and more efficient full screen mode the current version uses.
      As I said in the past, I might one day implement the previous method so that it’s possible to switch between full screen mode and window/screen mode, but this is a lot of work, and it is not on my agenda for now…

  • #60 written by trysta312
    about 1 year ago

    It works and all but how do you make the colors back to normal again?

    • #61 written by pberger
      about 1 year ago

      Just click on the program’s icon in the taskbar (bottom right by default)

      • #62 written by Devilin Pixy
        about 1 year ago

        Or just toggle using + + N
        Check the README.txt for Default controls.

  • #63 written by F.
    about 1 year ago

    This is the most useful application for people who suffers RP (Retinitis Pigmentosa). You are a genius!. Many thanks! It should be implemented in every OS!

  • #64 written by VoodooFox
    about 1 year ago

    Hi.
    First off, great and fast app! 😀

    I was wondering, would it be possible to implement color correction to specific parts of the screen and then apply it as overlay (or some similar) blending mode.
    That could really help with monitors that have color uniformity problem on their monitors.

    For example I have dell monitor that’s more green on the left and more red on the right side.

    So I was wondering if it would be possible to use this app for correcting something like that?

    Again, thanks for the great app!

    • #65 written by Melvyn
      about 1 year ago

      I think what you describe would theoretically be possible to do, but rather hard to implement (for example, how would you get the right irregular shape to properly blend the overlay to match your screen?)
      In any case, this is too far away from the intended purpose of NegativeScreen. This is not the right app for your use case, sorry.

      • #66 written by VoodooFox
        about 1 year ago

        Shape does not have to be 100% accurate but with decent dslr you can take an image of the screen to just get the general idea about the deviations.
        For example, that hue shift that some monitor have, are generally linear and most basic gradient fill with inverse color values fixes the problem.

        Of course it does introduce some small banding in some specific cases, but it’s choosing lesser of two evils in that case.

  • #67 written by SupaMark
    about 1 year ago

    Hello,

    First of all, I’d like to say thanks for this awesome app. Unfortunately, I’m also reporting that I’m having a peculiar issue when I run it. I have dual 1080 monitors in Eyefinity (portrait mode 2160 x 1920); when I run NegativeScreen, the left hand of the left monitor becomes corrupted (around 240px from the edge). When I turn off Eyefinity the issue disappears. I hope you have possible workarounds (except NOT using Eyefinity :))

    Thanks!

    • #68 written by Melvyn
      about 1 year ago

      Well, I’m sorry to hear about your issue, but if you are using the latest version (> 2.*) I’m afraid I can’t do anything for you :/
      Starting with 2.0, NegativeScreen uses the full-screen Windows Magnifier API, meaning I don’t have any control other than applying a color effect.
      You have probably found a bug in the API (Microsoft code). Just to make sure, did you try to use the Windows Magnifier color inversion? Did you notice the same problem?

      • #69 written by SupaMark
        about 1 year ago

        Hi Melvyn,

        Yes I did, and yes the issue did manifest unfortunately. So I guess this is something I should throw MS or AMD then… :-/

        Oh well… Thank you anyway! 🙂

  • #72 written by Federico Sturlese
    about 1 year ago

    Hello, congrats on this nice utility. A couple of questions:
    – where can I download the executable of version 2.5? I would be interested in trying the web api version
    – would it be possible to run the application by specifying the name of the color effect as argument on the command line?
    Thank you.
    Kind regards.
    Federico.

  • #74 written by Christopher Ong
    about 1 year ago

    Hi, thanks a lot for this awesome creation!

    I was wondering if it was possible to implement a setting in the config file or something to allow me to choose which part of the screen will have its color inverted, because sometimes i don’t want the whole screen to have inverted colors.

    Thx!

    • #75 written by Melvyn
      about 1 year ago

      It’s not possible with the current version of the API the app uses, sorry.

  • #76 written by Night Owl
    about 1 year ago

    Thank you for creating this program. I’ve been looking for something like this for a long time. Simple, but necessary- Might give my retinas a few more years of quality life.

  • #77 written by Phippo
    about 1 year ago

    Would it be possible for NegativeScreen to detect when the screen is locked and switch to normal colours? I’m using it on Windows 10 and it insists on pretty pictures which look weird when the colours are inverted.

    • #78 written by Melvyn
      about 1 year ago

      Almost everything is possible 🙂
      But I don’t think this is a top priority. I guess you will have to live with it. Sorry.

      • #79 written by Phippo
        about 1 year ago

        No problem, I’ve added something to my AutoHotKey script to kill NegativeScreen on lock and restart on unlock. It’s a bit messy in that it leaves an orphaned tray icon but that is a minor problem to me ( I can’t send keystrokes to NegativeScreen because it has no window and the lock screen swallows any fake keypresses I send). Code below:

        ; Stop NegativeScreen when locked, run again when unlocked.
        WM_WTSSESSION_CHANGE(wParam, lParam, Msg, hWnd) {
        static init:=(DllCall(“Wtsapi32.dll\WTSRegisterSessionNotification”, UInt, A_ScriptHwnd, UInt, 1) && OnMessage(0x02B1, “WM_WTSSESSION_CHANGE”))

        if (wParam=0x7) { ; lock
        Process Close, NegativeScreen.exe
        } else if (wParam=0x8) { ; unlock
        if (A_Is64bitOS) {
        Run %HOMEPATH%\PortableApps\PortableApps\NegativeScreenPortable\NegativeScreen.exe, %HOMEPATH%\PortableApps\PortableApps\NegativeScreenPortable
        } else {
        Run %HOMEPATH%\PortableApps\PortableApps\NegativeScreenPortable\NegativeScreenX86.exe, %HOMEPATH%\PortableApps\PortableApps\NegativeScreenPortable
        }
        }
        }

  • #80 written by Abe_stew
    about 1 year ago

    Is it possible to create a matrix that inverses black and white whilst keeping the rest the same but also reduces the contrast / shifts the tone so that the result looks more ‘flat’ or ‘material design’? Been playing around with the color matrix but I can’t even get close to the result I want. Cheers.

  • #82 written by dgm_mixtoon
    about 1 year ago

    work on windows vista?

  • #84 written by James
    about 1 year ago

    Great! Windows Magnifier used to annoy me because when I did Alt+Tab, it would also include the magnifier.
    Negative Screen is easy, smart, free and open-source. Thanks developer.

  • #85 written by Mikhail
    about 1 year ago

    Good day!

    First of all I must say: this is amazing. You just realized what I dreamed for. I was totally surprised when I found this program.

    Now lets get back to the message.
    Not too long ago I started to work with 2 monitors. (MCU software, PCB design, schematics etc). And now I must ask you: is it possible to realize the version of this program which can invert colors of just 1 monitor?

    In my case I want to invent IDE to be able to write code on the black background.

    In any case thanks a lot. This is the best freeware program I’ve ever seen.

  • #90 written by Carlos
    about 1 year ago

    Is this available for Windows 10?

  • #92 written by Brian
    about 1 year ago

    I’m sure it’s not possible, but it could be cool if you had a smart dark mode, leaving program that are already dark alone but inverting programs that are light. Or allowed specific programs to be inverted with a toggle. I just started using Dark Reader for Chrome which is pretty sweet, not perfect. Other super bright programs I use for work I would love to darken.

  • #94 written by Leonardo
    about 1 year ago

    Can you apply the program only in one part of the screen, leaving aside the bottom of the screen without reversing? (Eg Windows 10 taskbar, which has a black bar and become white when reverse)?

    Sorry for my bad English.

    • #95 written by Melvyn
      about 1 year ago

      Theoretically possible with the “legacy” version, but no way to do it with the current version, sorry.

  • #96 written by nanangarsyad
    about 1 year ago

    Hi,

    Is it possible to apply NegativeScreen to only on of the screen from multiple screen desktop?

    Thanks

  • #100 written by MD. Mohiuddin Ahmed
    about 1 year ago

    Hello,

    I am using ‘inverted green’ colur. But there is lots of bright green places and dark green places. Can I have all of them become only one specific level of green say RGB(9,134,24) and replace dark portions winth completely black

    Thanks & Regards
    —-
    Mohiuddin

    • #101 written by Melvyn
      about 1 year ago

      I’m not sure whether this is possible, but setting a maximum brightness for the green is :
      { 0.0, -0.3, 0.0, 0.0, 0.0 }
      { 0.0, -0.5, 0.0, 0.0, 0.0 }
      { 0.0, -0.1, 0.0, 0.0, 0.0 }
      { 0.0, 0.0, 0.0, 1.0, 0.0 }
      { 0.0, 0.6, 0.0, 0.0, 1.0 }