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/// <summary>
        /// На этой панели происходит рисование захваченного изображения
        /// </summary>
        class PanelView: Panel
        {
            /// <summary>
            /// Аргумент для события изменения текущего цвета(при перемещении мыши)
            /// на захваченном изображении
            /// </summary>
            public class CurrentColorChangedEventArgs: EventArgs
            {
                public CurrentColorChangedEventArgs(Color color)
                {
                    this.color = color;
                }

                Color color;
                public Color Color
                {
                    get
                    {
                        return color;
                    }
                }
            }
            
            public delegate void CurrentColorChangedEventHandler(object sender, CurrentColorChangedEventArgs e);
            public event CurrentColorChangedEventHandler CurrentColorChanged;

            /// <summary>
            /// Аргумент для события остановки захвата
            /// </summary>
            public class CaptureStoppedEventArgs: EventArgs
            {
                Rectangle captureRectangle;
                public Rectangle CaptureRectangle
                {
                    get
                    {
                        return captureRectangle;
                    }
                }

                public CaptureStoppedEventArgs(Rectangle captureRectangle)
                {
                    this.captureRectangle = captureRectangle;
                }
            }

            public delegate void CaptureStoppedEventHandler(object sender, CaptureStoppedEventArgs e);
            public event CaptureStoppedEventHandler CaptureStopped;
            
            Color previousColor;

            bool needGrab;
            ScreenCapturer capturer;

            /// <summary>
            /// Коэфициент увеличения
            /// </summary>
            public int ZoomRate
            {
                set
                {
                    capturer.ZoomRate = value;
                    Invalidate();
                }
            }

            public PanelView()
            {
                SetStyle(ControlStyles.ResizeRedraw, true);
                capturer = new ScreenCapturer(this);
            }

            public Rectangle CaptureRectangle
            {
                get
                {
                    return capturer.CaptureRectangle;
                }
            }
            
            protected override void OnMouseDown(MouseEventArgs e)
            {
                if (e.Button == MouseButtons.Left)
                {
                    capturer.BeginCapture(new Point(e.X, e.Y));
                    needGrab = true;
                }

                base.OnMouseDown(e);
            }

            protected override void OnMouseMove(MouseEventArgs e)
            {
                if (needGrab)
                    capturer.CopyImage(new Point(e.X, e.Y));
                else
                {
                    Graphics graphics = CreateGraphics();
                    IntPtr hDC = graphics.GetHdc();
                    Color color = Win32.GetPixelColor(hDC, e.X, e.Y);
                    if (color != previousColor)
                    {
                        if (CurrentColorChanged != null)
                            CurrentColorChanged(this, new CurrentColorChangedEventArgs(color));
                        previousColor = color;
                    }
                    graphics.ReleaseHdc(hDC);
                }
                
                base.OnMouseMove(e);
            }

            protected override void OnMouseUp(MouseEventArgs e)
            {
                if (needGrab)
                    if (e.Button == MouseButtons.Left)
                    {
                        Rectangle captureRectangle = capturer.StopCapture();
                        needGrab = false;
                        if (CaptureStopped != null)
                            CaptureStopped(this, new CaptureStoppedEventArgs(captureRectangle));
                    }
                base.OnMouseUp(e);
            }

            protected override void OnPaint(PaintEventArgs e)
            {
                capturer.PaintControl(e.Graphics);
                base.OnPaint(e);
            }

            public void FormDeactivated()
            {
                if (!needGrab)
                    return;
                Rectangle captureRectangle = capturer.StopCapture();
                if (CaptureStopped != null)
                    CaptureStopped(this, new CaptureStoppedEventArgs(captureRectangle));
            }

            public void SetDisplaySettings(Point desktopDimension)
            {
                capturer.DesktopDimension = desktopDimension;
            }
        }
    }