using System;

namespace DesertPaintLab

{

    public class AppSettings

    {

        private AppSettings()

        {

        }

        private static Settings _settings = new Settings();

        {

        }

        {

        }

        public static void Set(string key, int value)

        {

            _settings.Set(key, value);

        }

        public static void Set(string key, bool value)

        {

            _settings.Set(key, value);

        }

        public static void Save()

        {

            string settingsPath = System.IO.Path.Combine(FileUtils.AppDataPath, "settings");

            _settings.Save(settingsPath);

        }

        public static bool Load()

        {

            string settingsPath = System.IO.Path.Combine(FileUtils.AppDataPath, "settings");

            return _settings.Load(settingsPath);

        }

    }

}

            md.Run();

            md.Destroy();

            Application.Quit();

        }

        Palette.Load(colorsPath);

        string ingredientsPath = FileUtils.FindApplicationResourceFile("ingredients.txt");

        if (ingredientsPath == null)

        {

            // failed to find ingredients.txt file

            MessageDialog md = new MessageDialog(this,

                DialogFlags.DestroyWithParent,

                MessageType.Error, ButtonsType.Close,

                "Failed to find ingredients.txt file. Please check your installation.");

            md.Run();

            md.Destroy();

            Application.Quit();

        }

        ReagentManager.Load(ingredientsPath);

        Build();

        // get the root window

        rootWindow = Gdk.Global.DefaultRootWindow;

        // get its width and height

        AppSettings.Load();

        ShowPreferencesDialog();

        bool enableDebugMenu;

        this.DebugAction.Visible = enableDebugMenu;

        ReactionRecorder.Instance.OnReactionRecorded += OnReactionRecorded;

        if (!OpenProfile())

        {

            shouldShutDown = true;

        }

        if (!shouldShutDown)

        {

            captureView = new CaptureView(profile, screenBuffer);

            generatorView = new RecipeGeneratorView(profile);

            generatorView.SetStatus += OnStatusUpdate;

            generatorView.Started += OnGeneratorRunning;

            generatorView.Stopped += OnGeneratorStopped;

            simulatorView = new SimulatorView(profile);

            contentContainer.Add(captureView);

            captureView.Show();

        }

    }

    bool ConfirmedExit()

    {

        if (unsavedData)

        {

            MessageDialog md = new MessageDialog(this,

                DialogFlags.DestroyWithParent,

                MessageType.Warning, ButtonsType.OkCancel,

                "Your last reaction was unsaved." +

                "Are you sure you want to quit?");

            else

            {

                MessageDialog md = new MessageDialog(this,

                    DialogFlags.DestroyWithParent,

                    MessageType.Error, ButtonsType.Ok,

                    "Error loading profile: " + profile.LastError);

                md.Run();

                md.Destroy();

                profileSelected = false;

            }

        }

        return profileSelected;

    }

    protected void OnDeleteEvent(object sender, DeleteEventArgs a)

    {

        if (ConfirmedExit())

        {

            a.RetVal = true;

            Application.Quit();

        }

        else

        {

            a.RetVal = false;

        }

    }

    protected virtual void OnDebugScreenshot(object sender, System.EventArgs e)

    {

        int screenWidth, screenHeight;

        Gdk.Image rootImage = rootWindow.GetImage(0, 0, screenWidth, screenHeight);

        screenBuffer.GetFromImage(rootImage, rootImage.Colormap, 0, 0, 0, 0, screenWidth, screenHeight);

        string screenshotDir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);

        string filename;

        int i = 0;

        do

        {

            ++i;

            filename = System.IO.Path.Combine(screenshotDir, String.Format("DesertPaintLab_{0}.png", i));

        } while (System.IO.File.Exists(filename));

        screenBuffer.Save(filename, "png");

    }

    protected virtual void OnNewProfile(object sender, System.EventArgs e)

    {

        if (unsavedData)

        {

            MessageDialog md = new MessageDialog(this,

                DialogFlags.DestroyWithParent,

                MessageType.Warning, ButtonsType.OkCancel,

                "Your last reaction was unsaved." +

                "Are you sure you want to lose your changes?");

            ResponseType resp = (ResponseType)md.Run();

            md.Destroy();

            if (resp != ResponseType.Ok)

            {

                return;

            }

        }

        if (NewProfile())

        {

            generatorView.Hide();

            contentContainer.Remove(generatorView);

        }

        if (simulatorView == null)

        {

            simulatorView = new SimulatorView(profile);

        }

        if (simulatorView.Visible == false)

        {

            simulatorView.ResizeChildren();

            simulatorView.CheckResize();

            contentContainer.Add(simulatorView);

            simulatorView.Show();

        }

        CheckResize();

        // TODO: enable/disable menu options based on view

        NewProfileAction.Sensitive = true;

        OpenProfileAction.Sensitive = true;

        ImportProfileAction.Sensitive = true;

    }

    protected void ShowPreferencesDialog()

    {

        int detectedScreenWidth;

        int detectedScreenHeight;

        rootWindow.GetSize(out detectedScreenWidth, out detectedScreenHeight);

        int screenWidth = detectedScreenWidth;

        int screenHeight = detectedScreenHeight;

        int pixelMultiplier = 1;

        int interfaceSizeIndex = (int)(InterfaceSize.Small);

        InterfaceSize interfaceSize = (InterfaceSize)interfaceSizeIndex;

        ScreenCheckDialog screenCheckDialog = new ScreenCheckDialog {

            DetectedScreenWidth = detectedScreenWidth,

            DetectedScreenHeight = detectedScreenHeight,

            ScreenWidth = screenWidth,

            ScreenHeight = screenHeight,

            GamePixelWidth = pixelMultiplier,

            InterfaceSize = interfaceSize

        };

        ResponseType resp = (ResponseType)screenCheckDialog.Run();

        screenWidth = Math.Max(640, screenCheckDialog.ScreenWidth); // don't support screen smaller than 640x480 no matter what the user says

        screenHeight = Math.Max(480, screenCheckDialog.ScreenHeight);

        pixelMultiplier = Math.Max(1, screenCheckDialog.GamePixelWidth); // Don't allow 0/negative pixel multiplier

        interfaceSize = screenCheckDialog.InterfaceSize;

        screenCheckDialog.Destroy();

        AppSettings.Set("ScreenWidth", screenWidth);

        AppSettings.Set("ScreenHeight", screenHeight);

        AppSettings.Set("PixelMultiplier", pixelMultiplier);

        AppSettings.Set("InterfaceSize", (int)interfaceSize);

        AppSettings.Save();

        screenBuffer = new Gdk.Pixbuf(Gdk.Colorspace.Rgb, false, 8, screenWidth, screenHeight);

        ReactionRecorder.Instance.SetPixelMultiplier(pixelMultiplier);

        ReactionRecorder.Instance.SetInterfaceSize(interfaceSize);

    }

    protected void OnPreferences(object sender, EventArgs e)

    {

        ShowPreferencesDialog();

        captureView.ScreenBuffer = screenBuffer;

    }

}

Red         | High           | -Red       | Silver Powder (16) or Toad Skin (48)

Green       | Low            | +Green     | Falcon's Bait (240) or Copper (192)

Green       | High           | -Green     | Red Sand (16) or Silver Powder (16)

Blue        | Low            | +Blue      | Falcon's Bait (224) or Copper (192)

Blue        | High           | -Blue      | Red Sand (24) or Clay (32) or Carrot (32) or Silver Powder (32)

In many cases, it may be easiest to go back and do these three-way tests after you have finished all of your other testing.

### Catalysts

For catalyst to catalyst reaction tests, follow the three-way instructions, as above.

### Finishing Up

When you're done testing your reactions, you can either use the built-in Pigment Lab simulator (`Window > Run Simulator`) to experiment with recipes, without dipping into your precious ingredient stocks.  Alternatively, you can export your reactions in PracticalPaint format.

## Generating Recipes

### What do all these settings do?

* _Minimum Ingredients_ is the minimum number of ingredients the generator will use in a recipe. It's best to leave this at 1 so the simple single-ingredient recipes are included (like 10 carrots for 'carrot')

* _Maximum Ingredients_ limits how many ingredients will be used in a recipe. Ingredients after the 5th will still affect the resulting color, but won't use their reactions.

* _Silk Ribbon Recipes_ sets the generator up to create recipes for silk ribbons. Ribbons use a base concentration of 50 instead of the 10 that is used for paint.

* _Maximum Concentration_ is the maximum recipe concentration. Recipes with a concentration above 10 will still produce a single db of paint, but can use larger quantities of ingredients to make smaller color adjustments. Increasing this will increase the time required to search all the possible combinations.

* _Full Quantity Depth_ is the number of ingredients in the recipe that will use up to the "full quantity" value as the limit for those ingredients over the ingredient's maximum.

* _Full Quantity_ is the maximum quantity of any ingredient to use up to the Full Quantity Depth. For example, with a Full Quantity of 15 and a Full Quantity Depth of 3, a recipe could use up to 15 of each of the first 3 ingredients. After that it will be limited by the setting for that specific ingredient.

## Known Issues

### Slowness

### Multiple Displays

When Desert Paint Lab asks for the resolution for a multiple-display setup, enter the combined resolution of all displays. Generally the detected default for this will be correct. For example, two 1920x1080 displays in a side-by-side configuration would be a combined resolution of 3840x1080. In a stacked configuration, they would be 1920x2160.

### Retina / High-Density Screens

High DPI screens may be displaying the game at something other than a 1:1 game-pixel to screen-pixel ratio.  These screens didn't exist, back when Desert Paint Lab was created. The current version now prompts you for your screen resolution when it starts to work around this. If you see a crash when trying to capture a reaction, it's likely because the resolution is incorrect. For example, Snoerr's MacBook Pro has a retina screen with a resolution of 2880x1800. Mono (and therefore DesertPaintLab) detects it as having a resolution of 1440x900. He enters his resolution as 2880x1800 and sets the Game pixel width in screen pixels to 2.

## Mac user FAQ

Q: How do I find my native screen resolution?

A: You can find it by opening up "About this Mac" from the Apple menu and clicking on the "Displays" tab. That should show the screen size and resolution to enter.

## For Developers

This application was developed using [MonoDevelop](http://www.monodevelop.com/), and originally used the [Stetic GTK UI designer](http://www.monodevelop.com/documentation/stetic-gui-designer/).

 * Copyright (c) 2015, Jason Maltzen

 Permission is hereby granted, free of charge, to any person obtaining a copy

 of this software and associated documentation files (the "Software"), to deal

 in the Software without restriction, including without limitation the rights

 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the Software is

 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in

 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 THE SOFTWARE.

*/

using System;

using System.IO;

namespace DesertPaintLab

{

    // ReactionRecorder - business logic for recording paint reactions

    public class ReactionRecorder

    {

        public delegate void CaptureProgressHandler(int x, int y);

        public CaptureProgressHandler OnCaptureProgress;

        const int COLOR_TOLERANCE = 3;

        const InterfaceSize DEFAULT_INTERFACE_SIZE = InterfaceSize.Small;

        // Swatch is 301x20 solid color, 1px darker left/top, 1px black outer left/top, 1px light right/bottom, 1px bright right/bottom

        // top-right and bottom-left are bright instead of black

        // Color bars are 4x302 solid color, 2px border on all sides (darker left/top, lighter bottom/right

        public static readonly int[] SWATCH_HEIGHT = 

        {

            24, // tiny

            24, // small

            24, // medium

            24, // large

            24 // huge

        };

        public static readonly int[] SWATCH_WIDTH =

        {

            306, // tiny

            306, // small

            306, // medium

            320, // large

            350 // huge

        };

        public static readonly int[] COLOR_BAR_WIDTH =

        {

            306, // tiny

            306, // small -- includes left and right borders

            306, // medium

            320, // large

            350 // huge

        public int PixelMultiplier

        {

            get

            {

                return pixelMultiplier;

            }

            set

            {

                pixelMultiplier = value;

                UpdateSwatchSizes();

            }

        }

        private InterfaceSize interfaceSize;

        public InterfaceSize InterfaceSize

        {

            get

            {

                return interfaceSize;

            }

            set

            {

                interfaceSize = value;

                UpdateSwatchSizes();

            }

        }

        bool firstRun = true;

        int lastSwatchX = -1;

        int lastSwatchY = -1;

        public int SwatchX { get { return lastSwatchX; } }

        public int SwatchY { get { return lastSwatchY; } }

        private class PixelColor

        {

            public byte r;

            public byte g;

            public byte b;

            public bool IsMatch(PixelColor other)

            {

                return ((Math.Abs(r - other.r) <= COLOR_TOLERANCE) &&

                    (Math.Abs(g - other.g) <= COLOR_TOLERANCE) &&

                    (Math.Abs(b - other.b) <= COLOR_TOLERANCE));

            }

            public static bool IsDark(PixelColor color)

            {

                return (color.r < 0x47) && (color.g < 0x47) && (color.b < 0x47);

            }

            public static bool IsPapyrus(PixelColor color)

            {

                // red between 208 and 244

                // 240 and 255

                // green between 192 and 237

                // 223 and 250

                // blue between 145 and 205

                // 178 and 232

                //return ((r > 0xD0) && (g >= 0xC0) && (b >= 0x91)) &&

                //       ((r < 0xF4) && (g <= 0xED) && (b <= 0xCD));

                return ((color.r >= 0xF0) && (color.r <= 0xFF) && (color.g >= 0xDF) && (color.g <= 0xFA) && (color.b >= 0xB2) && (color.b <= 0xE8));

            }

            public static bool IsRed(PixelColor color)

                    ok &= DoesPixelMatch(x + xOff, y, _tempColor2.IsMatch);

                    ok &= DoesPixelMatch(x + xOff, y + patchHeight - 1, _tempColor2.IsMatch);

                }

                for (int yOff = 1; ok && (yOff < patchHeight - 1); ++yOff)

                {

                    ok &= DoesPixelMatch(x, y + yOff, _tempColor2.IsMatch);

                    ok &= DoesPixelMatch(x + patchWidth - 1, y + yOff, _tempColor2.IsMatch);

                }

                for (int yOff = 1; ok && (yOff < patchHeight - 1); ++yOff)

                {

                    for (int xOff = 1; ok && (xOff < patchWidth - 1); ++xOff)

                    {

                        ok &= DoesPixelMatch(x + xOff, y + yOff, _tempColor2.IsMatch);

                    }

                }

                return ok;

            }

        }

        private static ReactionRecorder _instance;

        public static ReactionRecorder Instance

        {

            get {

                if (_instance == null)

                {

                    _instance = new ReactionRecorder();

                }

                return _instance;

            }

        }

        public StreamWriter Log { get; set; }

        {

            {

                Log.WriteLine(format, args);

            }

        }

        public delegate void ReactionRecordedHandler(Reagent reagent1, Reagent reagent2, Reaction reaction);

        public ReactionRecordedHandler OnReactionRecorded;

        public ReactionRecorder()

        {

            pixelMultiplier = 1;

            interfaceSize = DEFAULT_INTERFACE_SIZE;

            UpdateSwatchSizes();

        }

        public ReactionRecorder(int pixelMultiplier)

        {

            this.pixelMultiplier = pixelMultiplier;

            this.interfaceSize = DEFAULT_INTERFACE_SIZE;

            UpdateSwatchSizes();

        }

        public ReactionRecorder(int pixelMultiplier, InterfaceSize interfaceSize)

        {

            this.pixelMultiplier = pixelMultiplier;

            this.interfaceSize = interfaceSize;

            UpdateSwatchSizes();

        }

            bool isDarkPixel = false;

            //bool isPapyAbove = false;

            //bool isPapyBelow = false;

            // 1.) Check if the top pixel is a dark pixel.

            isDarkPixel = PixelColor.IsDark(color);

            //// 2.) Check the pixel above it to see if it's from the papy texture.

            //int otherPixelStart = testPixelStart - stride;

            //isPapyAbove = ((otherPixelStart >= 0) &&

            //    IsPapyTexture(pixBytes[otherPixelStart++], pixBytes[otherPixelStart++], pixBytes[otherPixelStart]));

            //// 3.) Check the pixel below where the swatch should be to see if it's also from the papy texture.

            //otherPixelStart = testPixelStart + (stride * swatchHeight);

            //isPapyBelow = (IsPapyTexture(pixBytes[otherPixelStart++], pixBytes[otherPixelStart++], pixBytes[otherPixelStart]));

            //bool result = isDarkPixel && isPapyAbove && isPapyBelow;

            bool result = isDarkPixel;

            // grab the swatch color

            // 2 down from top border

            pixels.ColorAt(x, y + 2, ref color);

            // scan the column from 2 below the top to 3 above the bottom to ensure the color matches

            for (int i = 2; result && (i < (swatchHeight-3)); ++i)

            {

                result &= pixels.DoesPixelMatch(x, y + i, color.IsMatch);

            }

            if (!result)

            {

            }

            return result;

        }

        unsafe private bool IsPossibleSwatchUpperLeft(Pixels pixels, int x, int y)

        {

            int testPixelStart = pixels.ComputeOffset(x, y);

            if (testPixelStart < pixels.stride)

            {

                return false;

            }

            bool result = true;

            int swatchSolidWidth = swatchWidth - 4;

            int swatchSolidHeight = swatchHeight - 5; // 2 top and 3 bottom pixels are slightly different colors

            int swatchSolidLeftX = x + 2;

            int swatchSolidTopY = y + 2;

            int swatchSolidRightX = swatchSolidLeftX + swatchSolidWidth - 1;

            int swatchSolidBottomY = swatchSolidTopY + swatchSolidHeight - 1;

            PixelColor swatchColor = new PixelColor();

            pixels.ColorAt(swatchSolidLeftX, swatchSolidTopY, ref swatchColor);

            // Check the other 3 corners of the swatch size for color match

            PixelColor testColor = new PixelColor();

            bool upperRightResult = pixels.DoesPixelMatch(swatchSolidRightX, swatchSolidTopY, swatchColor.IsMatch);

            bool lowerLeftResult = pixels.DoesPixelMatch(swatchSolidLeftX, swatchSolidBottomY, swatchColor.IsMatch);

            bool lowerRightResult = pixels.DoesPixelMatch(swatchSolidRightX, swatchSolidBottomY, swatchColor.IsMatch);

            result &= upperRightResult;

            result &= lowerLeftResult;

            result &= lowerRightResult;

            if (!result)

            {

                // Box corners test failed

                return false;

            }

            // scan down the right and left sides

            for (int yOff = 1; yOff < (swatchSolidHeight - 1); ++yOff)

            {

                result &= pixels.DoesPixelMatch(swatchSolidLeftX, swatchSolidTopY + yOff, swatchColor.IsMatch);

                if (!result)

                {

                    pixels.ColorAt(swatchSolidLeftX, swatchSolidTopY + yOff, ref testColor);

                    break;

                }

                result &= pixels.DoesPixelMatch(swatchSolidRightX, swatchSolidTopY + yOff, swatchColor.IsMatch);

                if (!result)

                {

                    pixels.ColorAt(swatchSolidRightX, swatchSolidTopY + yOff, ref testColor);

                }

            }

            if (!result)

            {

                return false;

            }

            for (int xOff = 1; xOff < (swatchSolidWidth - 1); ++xOff)

            {

                result &= pixels.DoesPixelMatch(swatchSolidLeftX + xOff, swatchSolidTopY, swatchColor.IsMatch);

                if (!result)

                {

                    pixels.ColorAt(swatchSolidLeftX + xOff, swatchSolidTopY, ref testColor);

                    break;

                }

                result &= pixels.DoesPixelMatch(swatchSolidLeftX + xOff, swatchSolidBottomY, swatchColor.IsMatch);

                if (!result)

                {

                    pixels.ColorAt(swatchSolidLeftX + xOff, swatchSolidBottomY, ref testColor);

                    break;

                }

            }

            if (!result)

            {

                return false;

            }

            // test the left edge for dark pixels -- the bottom-most pixel is bright now

            int i = 0;

            for (i = 1; result && i < swatchHeight - 1; ++i)

            {

                result &= pixels.DoesPixelMatch(x, y + i, PixelColor.IsDark);

            }

            if (!result)

            {

                // No dark border on the left side

                return false;

            }

            // test the dark top border and for papyrus above and below the swatch

            bool borderError = false;

            int papyErrorCount = 0;

            for (i = 0; result && (i < swatchWidth - 1); ++i)

            {

                bool isBorder = pixels.DoesPixelMatch(x + i, y, PixelColor.IsDark);

                result &= isBorder;

                if (!isBorder)

                {

                    borderError = true;

                }

                // Checking along the top of the swatch for papyrus

                // The row just above is shaded, so check 2 above

                if (y > 1)

                {

                    bool isPapyrus = pixels.DoesPixelMatch(x + i, y - 2, PixelColor.IsPapyrus);

                    papyErrorCount += isPapyrus ? 0 : 1;

                }

                else

                {

                    ++papyErrorCount;

                }

                // Checking along the bottom of the swatch for papyrus

                if (y < pixels.height)

                {

                    bool isPapyrus = pixels.DoesPixelMatch(x + i, y + swatchHeight, PixelColor.IsPapyrus);

                    papyErrorCount += isPapyrus ? 0 : 1;

                }

                else

                {

                    ++papyErrorCount;

                }

            }

            result &= (papyErrorCount < (swatchWidth / 20)); // allow up to 5% error rate checking for papy texture, because this seems to be inconsistent

            if (!result && ((i > (swatchWidth*0.8)) || (papyErrorCount >= (swatchWidth/20))))

            {

                if (!borderError && (papyErrorCount < swatchWidth))

                {

                }

            }

            return result;

        }

        unsafe private bool TestPosition(int x, int y, Pixels pixels, ref PaintColor reactedColor, ref int redPixelStart)

        {

            PixelColor pixelColor = new PixelColor();

            // Check 4 corners of solid area and left/right solid bar areas

            bool foundSwatch = IsPossibleSwatchUpperLeft(pixels, x, y); // ((pixel_r < 0x46) && (pixel_g < 0x46) && (pixel_b < 0x46));

            if (foundSwatch)

            {

                int borderXOffset = 0;

                for (borderXOffset = 2; foundSwatch && (borderXOffset < swatchTestWidth); ++borderXOffset)

                {

                    foundSwatch &= IsPossibleSwatchSlice(pixels, x + borderXOffset, y);

                    if (!foundSwatch)

                    {

                        break;

                    }

                    foundSwatch &= IsPossibleSwatchSlice(pixels, x + swatchWidth - borderXOffset, y);

                    if (!foundSwatch)

                    {

                        break;

                    }

                }

            }

            if (foundSwatch)

            {

                // WE FOUND THE SWATCH!

                // Now we know where the color bars are.

                int redPixelCount = pixels.LengthOfColorAt(x, y + redBarSpacing, PixelColor.IsRed);

                reactedColor.Red = (byte)Math.Round((float)redPixelCount * 255f / (float)colorBarWidth);

                int greenPixelCount = pixels.LengthOfColorAt(x, y + greenBarSpacing, PixelColor.IsGreen);

                reactedColor.Green = (byte)Math.Round((float)greenPixelCount * 255f / (float)colorBarWidth);

                int bluePixelCount = pixels.LengthOfColorAt(x, y + blueBarSpacing, PixelColor.IsBlue);

                reactedColor.Blue = (byte)Math.Round((float)bluePixelCount * 255f / (float)colorBarWidth);

                return true;

            }

            return false;

        }

        unsafe public bool CaptureReaction(byte* pixBytes, int screenshotWidth, int screenshotHeight, int stride, int numChannels, int bitsPerSample)

        {

            PaintColor reactedColor = new PaintColor();

            int redPixelStart = 0;

            ScreenWidth = screenshotWidth;

            ScreenHeight = screenshotHeight;

            IsCaptured = false;

            _recordedColor.Clear();

            Pixels pixels = new Pixels

            {

                pixBytes = pixBytes,

                width = screenshotWidth,

                height = screenshotHeight,

                stride = stride,

                numChannels = numChannels,

                pixelMultiplier = pixelMultiplier

            };

            IsCaptured = false;

            if (!firstRun)

            {

                // If this is not the first run, let's check the last location, to see if the UI is still there.

                if (TestPosition(lastSwatchX, lastSwatchY, pixels, ref reactedColor, ref redPixelStart))

                {

                    IsCaptured = true;