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unsafe Point? FindButtonLocation(Bitmap bitmap, Color btnColor)
            {
                int bytesPerPixel = 4;
                const int neededMatchPixelColors = 100;
                Size focusSize = new Size(10, 10);
                System.Drawing.Imaging.BitmapData mapSource = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, bitmap.PixelFormat);
                int scanStride = bitmap.Width * bytesPerPixel;
                byte* scanFirstPixel = (byte*)mapSource.Scan0;
                Point? btnLocation = null;
                for(int y = bitmap.Height / 2; y < bitmap.Height; y++)
                {
                    byte* currentLine = scanFirstPixel + (y * scanStride);
                    for (int x = 0; x < scanStride / 3; x += bytesPerPixel)
                    {
                        var currentScreenPosition = new Point(x / bytesPerPixel, y);
                        byte A = currentLine[x + 3];
                        byte R = currentLine[x + 2];
                        byte G = currentLine[x + 1];
                        byte B = currentLine[x];
                        bool mainPixelFound = A == btnColor.A && R == btnColor.R && G == btnColor.G && B == btnColor.B;
                        if (!mainPixelFound)
                            continue;
                        int checkPixelsFound = 0;
                        bool allcheckPixelsFound = checkPixelsFound == neededMatchPixelColors;
                        if (!allcheckPixelsFound)
                        {
                            var mainPixelLocation = new Point(x / bytesPerPixel, y);//relative to the scan region
                            var focusRegion = GetScanRegionAroundMainPixel(mainPixelLocation, focusSize);//relative to the scan region
                            byte* focusFirstPixel = scanFirstPixel + (focusRegion.Y * scanStride) + focusRegion.X * bytesPerPixel;
                            int focusStride = focusRegion.Width * bytesPerPixel;
                            for (int j = 0; j < focusRegion.Height; j++)
                            {
                                byte* focustLine = focusFirstPixel + (j * scanStride);
                                for (int i = 0; i < focusStride; i += bytesPerPixel)
                                {
                                    A = focustLine[i + 3];
                                    R = focustLine[i + 2];
                                    G = focustLine[i + 1];
                                    B = focustLine[i];
                                    bool checkPixelFound = A == btnColor.A && R == btnColor.R && G == btnColor.G && B == btnColor.B;
                                    if (checkPixelFound)
                                    {
                                        checkPixelsFound++;
                                        allcheckPixelsFound = checkPixelsFound == neededMatchPixelColors;
                                    }
                                    if (allcheckPixelsFound)
                                    {
                                        bitmap.UnlockBits(mapSource);
                                        btnLocation = currentScreenPosition;
                                        return btnLocation;
                                    }
                                }
                            }
                        }
                    }
                }
                bitmap.UnlockBits(mapSource);
                return btnLocation;

                Rectangle GetScanRegionAroundMainPixel(Point currentLocation, Size focusScanSize)
                {
                    Point centerPoint = new Point(currentLocation.X - focusScanSize.Width / 2, currentLocation.Y - focusScanSize.Height / 2);//adjust point to be center of rectangle
                    return new Rectangle(centerPoint, focusScanSize);
                }
            }