Windows 11 - Accessibility Color Filters


Hi, Does everyone have a sample using C# for Windows 11 Accessibility Color Filters? Im making one sample, but, Im newbie at Windows SDK. Regards, Igor.

Universal Windows Platform (UWP)
Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
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  1. Junjie Zhu - MSFT 13,151 Reputation points Microsoft Vendor

    Hello @Igor Felipe Pereira Gutierrez (CC0) ,

    Welcome to Microsoft Q&A!

    It is recommended to use Win32 api MagSetFullscreenColorEffect, here is a grayscale example. You can also modify the matrix to achieve multiple colors.

    //​using static Vanara.PInvoke.Magnification;
    //using static Vanara.PInvoke.User32; 
     float redScale = 0.2126f, greenScale = 0.7152f, blueScale = 0.0722f;
     var magEffectInvert = new MAGCOLOREFFECT(new[,] { // MagEffectInvert
    		 { redScale,   redScale,   redScale,   0.0f,  0.0f, },
             { greenScale, greenScale, greenScale, 0.0f,  0.0f, },
             { blueScale,  blueScale,  blueScale,  0.0f,  0.0f, },
             { 0.0f,       0.0f,       0.0f,       1.0f,  0.0f, },
             { 0.0f,       0.0f,       0.0f,       0.0f,  1.0f }

    Thank you.

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  1. 2024-01-24T12:06:56.4466667+00:00

    Hey, here is an sample I made:

    It's a simple WPF, with Button to make Screen in Black and White. I'm working it, to be complete done. Thank's, Igor Felipe Pereira Gutierrez.

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