xhwkclient/XHWK.WKTool/PracticeWindow.xaml.cs

using Common.system;

using System;
using System.Collections.Generic;
using System.Threading;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;

using TStudyDigitalPen.HID;

using XHWK.Model;

namespace XHWK.WKTool
{
    /// <summary>
    /// 录屏画板
    /// </summary>
    public partial class PracticeWindow : Window
    {
        //声明一个 DrawingAttributes 类型的变量  
        private DrawingAttributes drawingAttributes;
        private DrawingAttributes drawing;
        private ViewModel viewModel;
        /// <summary>
        /// 0 画笔 1 矩形 2 圆形 
        /// </summary>
        private int flg = 0;

        /// <summary>
        /// 当前画笔颜色
        /// </summary>
        private Color Colour = Colors.Red;
        /// <summary>
        /// 当前画笔宽
        /// </summary>
        private int Wit = 2;
        /// <summary>
        /// 当前画笔高
        /// </summary>
        private int Hei = 2;
        public PracticeWindow()
        {
            InitializeComponent();
            InitPen();
        }
        public void Initialize(string _imgPath = null)
        {
            flg = 0;
            blackboard_canvas.Strokes.Clear();
            blackboard_canvas.UseCustomCursor = true;
            //blackboard_canvas.EditingMode = InkCanvasEditingMode.EraseByStroke;
            //加背景 废弃更利于讲解ppt
            //if (File.Exists(_imgPath))
            //{
            //    imgCanvas.Source = new BitmapImage(new Uri(_imgPath));
            //}




            //创建 DrawingAttributes 类的一个实例  
            drawingAttributes = new DrawingAttributes();

            //drawingAttributes.StylusTip = StylusTip.Rectangle;
            //drawingAttributes.IsHighlighter = false;
            //drawingAttributes.IgnorePressure = true;



            ////将 InkCanvas 的 DefaultDrawingAttributes 属性的值赋成创建的 DrawingAttributes 类的对象的引用  
            ////InkCanvas 通过 DefaultDrawingAttributes 属性来获取墨迹的各种设置，该属性的类型为 DrawingAttributes 型  
            blackboard_canvas.DefaultDrawingAttributes = drawingAttributes;
            Pen();
            //blackboard_canvas.Cursor = Cursors.Pen;


            //Cursor cus = new Cursor(@"G:\06.cur");

            //blackboard_canvas.Cursor = cus;

            viewModel = new ViewModel
            {
                InkStrokes = new StrokeCollection(),
            };

            DataContext = viewModel;
            //APP.W_ScreenRecordingToolbarWindow.Owner = this;
            //APP.W_ScreenRecordingToolbarWindow.Topmost = true;
        }
        /// <summary>
        /// 画笔颜色事件 白色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void White()
        {
            //flg = 0;
            drawingAttributes.Color = Colors.White;
            Colour = Colors.White;
        }
        /// <summary>
        /// 画笔颜色事件 红色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Red()
        {
                drawingAttributes.Color = Colors.Red;
            Colour = Colors.Red;
        }
        /// <summary>
        /// 画笔颜色事件 黑色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Gray()
        {
            //flg = 0;
            drawingAttributes.Color = Colors.Black;
            Colour = Colors.Black;
        }
        /// <summary>
        /// 画笔颜色事件 青色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void CyanBlue()
        {
            //flg = 0;
            drawingAttributes.Color = Colors.LimeGreen;
            Colour = Colors.LimeGreen;
        }
        /// <summary>
        /// 画笔颜色事件 黄色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Yellow()
        {
            //flg = 0;
            drawingAttributes.Color = Colors.Gold;
            Colour = Colors.Gold;
        }
        /// <summary>
        /// 画笔颜色事件 蓝色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Blue()
        {
            //flg = 0;
            drawingAttributes.Color = Colors.DeepSkyBlue;
            Colour = Colors.DeepSkyBlue;
        }
        /// <summary>
        /// 画笔粗细事件 细
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Fine()
        {
            //flg = 0;
            drawingAttributes.Width = 1;
            drawingAttributes.Height = 1;
            Wit = 1;
            Hei = 1;
        }
        /// <summary>
        /// 画笔粗细事件 中
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void In()
        {
            //flg = 0;
            drawingAttributes.Width = 3;
            drawingAttributes.Height = 3;
            Wit = 3;
            Hei = 3;

        }
        /// <summary>
        /// 画笔粗细事件 粗
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Crude()
        {
            //flg = 0;
            drawingAttributes.Width = 5;
            drawingAttributes.Height = 5;
            Wit = 5;
            Hei = 5;
        }
        /// <summary>
        /// 橡皮
        /// </summary>
        public void Eraser()
        {
            flg = 0;
            //this.type = ZPenType.Erase;
            blackboard_canvas.UseCustomCursor = false;
            blackboard_canvas.EditingMode = InkCanvasEditingMode.EraseByPoint;
            blackboard_canvas.EraserShape = new EllipseStylusShape(64, 64, 0);
        }
        /// <summary>
        /// 画笔
        /// </summary>
        public void Pen()
        {
            flg = 0;
            blackboard_canvas.EditingMode = InkCanvasEditingMode.Ink;
            blackboard_canvas.UseCustomCursor = true;
            drawingAttributes.FitToCurve = true;
            drawingAttributes.IgnorePressure = false;

            blackboard_canvas.Cursor = Cursors.Pen;
        }
        /// <summary>
        /// 圆
        /// </summary>
        public void Round()
        {
            flg = 2;
            drawingAttributes = new DrawingAttributes
            {
                Color = Colour,
                Width = Wit,
                Height = Hei,
                StylusTip = StylusTip.Rectangle,
                //FitToCurve = true,
                IsHighlighter = false,
                IgnorePressure = true,

            };
            blackboard_canvas.DefaultDrawingAttributes = drawingAttributes;
            blackboard_canvas.EditingMode = InkCanvasEditingMode.None;
            blackboard_canvas.Cursor = Cursors.Cross;
        }
        /// <summary>
        /// 矩形
        /// </summary>
        public void Rectangle()
        {
            flg = 1;
            drawingAttributes = new DrawingAttributes
            {
                Color = Colour,
                Width = Wit,
                Height = Hei,
                StylusTip = StylusTip.Rectangle,
                //FitToCurve = true,
                IsHighlighter = false,
                IgnorePressure = true,

            };
            blackboard_canvas.DefaultDrawingAttributes = drawingAttributes;
            blackboard_canvas.EditingMode = InkCanvasEditingMode.None;
            blackboard_canvas.Cursor = Cursors.Cross;
        }
        private System.Windows.Point iniP;
        private void blackboard_canvas_MouseDown(object sender, MouseButtonEventArgs e)
        {
            if (flg != 0)
            {
                if (e.LeftButton == MouseButtonState.Pressed)
                {
                    iniP = e.GetPosition(blackboard_canvas);
                }
            }
        }

        private Stroke StrokeRound;
        private Stroke StrokeRectangle;
        private void blackboard_canvas_MouseMove(object sender, MouseEventArgs e)
        {
            if (flg != 0)
            {
                if (e.LeftButton == MouseButtonState.Pressed)
                {
                    // Draw square
                    if (flg == 1)
                    {
                        System.Windows.Point endP = e.GetPosition(blackboard_canvas);
                        List<System.Windows.Point> pointList = new List<System.Windows.Point>
                    {
                        new System.Windows.Point(iniP.X, iniP.Y),
                        new System.Windows.Point(iniP.X, endP.Y),
                        new System.Windows.Point(endP.X, endP.Y),
                        new System.Windows.Point(endP.X, iniP.Y),
                        new System.Windows.Point(iniP.X, iniP.Y),
                    };
                        //Stroke stroke1 = new Stroke(drawingAttributesRound);
                        StylusPointCollection point = new StylusPointCollection(pointList);
                        Stroke stroke = new Stroke(point)
                        {
                            DrawingAttributes = blackboard_canvas.DefaultDrawingAttributes.Clone()
                        };
                        if (StrokeRectangle != null)
                        {
                            viewModel.InkStrokes.Remove(StrokeRectangle);
                        }
                        StrokeRectangle = stroke;

                        viewModel.InkStrokes.Add(stroke);
                    }
                    // Draw Eclipse
                    else if (flg == 2)
                    {
                        System.Windows.Point endP = e.GetPosition(blackboard_canvas);
                        List<System.Windows.Point> pointList = GenerateEclipseGeometry(iniP, endP);
                        StylusPointCollection point = new StylusPointCollection(pointList);
                        Stroke stroke = new Stroke(point)
                        {
                            DrawingAttributes = blackboard_canvas.DefaultDrawingAttributes.Clone()
                        };
                        //viewModel.InkStrokes.Clear();
                        if (StrokeRound != null)
                        {
                            viewModel.InkStrokes.Remove(StrokeRound);
                        }
                        StrokeRound = stroke;
                        viewModel.InkStrokes.Add(stroke);
                    }
                }
            }
        }
        private List<System.Windows.Point> GenerateEclipseGeometry(System.Windows.Point st, System.Windows.Point ed)
        {
            double a = 0.5 * (ed.X - st.X);
            double b = 0.5 * (ed.Y - st.Y);
            List<System.Windows.Point> pointList = new List<System.Windows.Point>();
            for (double r = 0; r <= 2 * Math.PI; r = r + 0.01)
            {
                pointList.Add(new System.Windows.Point(0.5 * (st.X + ed.X) + a * Math.Cos(r), 0.5 * (st.Y + ed.Y) + b * Math.Sin(r)));
            }
            return pointList;
        }
        /// <summary>
        /// 鼠标松开时
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void blackboard_canvas_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {
            StrokeRound = null;
            StrokeRectangle = null;
        }
        /// <summary>
        /// 鼠标右键
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Window_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (APP.W_ScreenRecordingToolbarWindow.flg == 10)
            {
                APP.W_ScreenRecordingToolbarWindow.flg = 0;
            }
            else
            {
                APP.W_ScreenRecordingToolbarWindow.flg = 1;
            }
            Hide();
        }
        /// <summary>
        /// 鼠标中建点击
        /// </summary>
        void SwitchPages()
        {
            try
            {
                new Thread(() =>
                {
                    Thread.Sleep(500);
                    MouseEventCommon.MouseMiddleClickEvent(0);
                }).Start();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }


        private void blackboard_canvas_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (APP.W_ScreenRecordingToolbarWindow.flg == 10)
            {
                APP.W_ScreenRecordingToolbarWindow.flg = 0;
            }
            else
            {
                APP.W_ScreenRecordingToolbarWindow.flg = 1;
            }
            Hide();
        }

        private void blackboard_canvas_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (APP.W_ScreenRecordingToolbarWindow.flg == 10)
            {
                APP.W_ScreenRecordingToolbarWindow.flg = 0;
            }
            else
            {
                APP.W_ScreenRecordingToolbarWindow.flg = 1;
            }
            ReturnPractice();
            //模拟切到ppt
            SwitchPages();
            //Hide();
        }
        /// <summary>
        /// 退出批注并清空画板
        /// </summary>
        public void ReturnPractice()
        {
            blackboard_canvas.Strokes.Clear();
            new Thread(new ThreadStart(new Action(() =>
            {
                Dispatcher.Invoke(() =>
                {
                    APP.W_ScreenRecordingToolbarWindow.ModifyState();
                });
                flg = 0;
                Thread.Sleep(500);
                Dispatcher.Invoke(() =>
                {
                    Owner = null;
                    APP.W_PracticeWindow.Hide();
                });
            }))).Start();
        }


        #region 点阵笔相关
        #region 值初始化
        // 不同尺寸点阵纸点阵宽高尺寸计算方法为：纸张物理尺寸（毫米）/0.3 *8,详见 开发必读.pdf 文档

        /// <summary>
        /// A4点阵纸点阵宽度
        /// </summary>
        private const int A4_WIDTH = 5600;

        /// <summary>
        /// A4点阵纸点阵高度
        /// </summary>
        private const int A4_HEIGHT = 7920;

        ///// <summary>
        ///// 画板
        ///// </summary>
        //private Graphics graphics;

        /// <summary>
        /// 笔画坐标数组
        /// </summary>
        private List<System.Drawing.Point> stroke;

        /// <summary>
        /// 笔序列号
        /// </summary>
        private string penSerial;

        /// <summary>
        /// 笔是否在点
        /// </summary>
        private bool isPenDown;

        //当前点阵地址
        private string currentPageSerial = string.Empty;

        //不同点阵地址对应的笔迹绘制图片，用于实现在不同点阵地址书写切换时，显示书写内容自动切换
        //本例图片放在内存中存储，对于大量或者需要在多个点阵地址对应图片进行切换演示，建议将图片存储到文件，以免内存溢出
        private Dictionary<string, System.Drawing.Image> pagesDic = new Dictionary<string, System.Drawing.Image>();
        #endregion
        public void InitPen()
        {
            stroke = new List<System.Drawing.Point>();
            //获取点阵笔实例，并绑定点阵笔事件
            //将授权文件内容传入，获取点阵笔对象实例
            APP.digitalPen = DigitalPenHID.GetInstance(certificates.MyLicense.Bytes);
            //绑定笔连接事件
            APP.digitalPen.PenConnected += OnPenConnect;
            //绑定笔断开事件
            APP.digitalPen.PenDisconnect += OnPenDisconnect;
            //绑定笔书写输出坐标事件
            APP.digitalPen.PenCoordinate += OnPenCoordinate;
            //绑定抬笔事件
            APP.digitalPen.PenUp += OnPenUp;
            //绑定落笔事件
            APP.digitalPen.PenDown += OnPenDown;
            APP.digitalPen.PenBatteryCapacity += OnBatteryCapacity;
            APP.digitalPen.PenMemoryFillLevel += OnMemoryFillLevel;
            //完成初始化点阵笔，开始与点阵笔通信
            ERROR_CODE ER = APP.digitalPen.Start();

            ////绑定笔在新的点阵地址页面书写事件
            //APP.digitalPen.PenNewPage += APP.digitalPen_OnPenNewPage;
            ////绑定笔信息事件
            //APP.digitalPen.PenInfo += APP.digitalPen_OnPenInfo;
            //启动接收笔数据，完成初始化工作
            //ERROR_CODE rc = APP.digitalPen.Start();
            //判断是否成功
            if (ER != ERROR_CODE.ERROR_OK)
            {
                MessageWindow.Show("初始化失败，授权过期，返回值：" + ER.ToString());
            }
        }

        /// <summary>
        /// 落笔
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenDown(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenDown);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                isPenDown = true;
            }
        }

        /// <summary>
        /// 抬笔
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenUp(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenUp);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                isPenDown = false;
                APP.PenSerial = penSerial;

                stroke.Clear();
            }
            //if (APP.pageData.currpage > 0)
            //{
            //    Dispatcher.Invoke(new Action(() =>
            //    {
            //        myblackboard.changepages(0, 0, true, Color, PenSize, APP.pageData.currpage - 1, 0);
            //    }));
            //}


                if (strokes != null && strokes.StylusPoints.Count > 1)
                {
                    isFirst = true;
                }
                stylusPoints = new StylusPointCollection();
                stylusPoint = new StylusPoint();
                strokes = null;
        }

        /// <summary>
        /// 笔断开
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenDisconnect(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenDisconnect);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                APP.PenSerial = penSerial;
                APP.PenStatus = false;
                //UpdateDevStatus();
                ////Dispatcher.Invoke(new Action(() =>
                ////{
                ////    txbNotConnected.Text = "未连接";
                ////    txbNotConnecteds.Text = "未连接";
                ////}));
            }
        }

        /// <summary>
        /// 笔连接
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        private void OnPenConnect(ulong time, string penSerial, int penType)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int> action = new Action<ulong, string, int>(OnPenConnect);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType });
            }
            else
            {
                APP.PenSerial = penSerial;
                APP.PenStatus = true;
                this.penSerial = penSerial;
                //连接后，在获取笔数据前，可以清除笔内的历史数据
                //APP.digitalPen.ClearMemory(penSerial);

                //开始接收笔数据
                APP.digitalPen.GetPenData(penSerial);
                //UpdateDevStatus();
                ////Dispatcher.Invoke(new Action(() =>
                ////{
                ////    txbNotConnected.Text = "已连接";
                ////    txbNotConnecteds.Text = "已连接";
                ////}));

            }
        }
        /// <summary>
        /// 电池电量
        /// </summary>
        /// <param name="time"></param>
        /// <param name="penSerial"></param>
        /// <param name="penType"></param>
        /// <param name="capacity"></param>
        private void OnBatteryCapacity(ulong time, string penSerial, int penType, byte capacity)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int, byte> action = new Action<ulong, string, int, byte>(OnBatteryCapacity);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType, capacity });
            }
            else
            {
                //System.Windows.MessageWindow.Show("电池电量:" + capacity.ToString());
            }
        }

        /// <summary>
        /// 已用存储
        /// </summary>
        /// <param name="time"></param>
        /// <param name="penSerial"></param>
        /// <param name="penType"></param>
        /// <param name="fillLevel"></param>
        private void OnMemoryFillLevel(ulong time, string penSerial, int penType, byte fillLevel)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int, byte> action = new Action<ulong, string, int, byte>(OnMemoryFillLevel);
                Dispatcher.Invoke(action, new object[] { time, penSerial, penType, fillLevel });
            }
            else
            {
                //System.Windows.MessageWindow.Show("存储:" + fillLevel.ToString());
            }
        }

        /// <summary>
        /// 笔书写，收到坐标
        /// </summary>
        /// <param name="time">时间戳，1970年1月1日到现在的总毫秒数</param>
        /// <param name="penSerial">点阵笔序列号</param>
        /// <param name="penType">点阵笔型号编号</param>
        /// <param name="pageSerial">点阵地址</param>
        /// <param name="cx">x坐标</param>
        /// <param name="cy">y坐标</param>
        /// <param name="force">压力值</param>
        private void OnPenCoordinate(ulong time, string penSerial, int penType, string pageSerial, int cx, int cy, byte force)
        {
            if (CheckAccess())
            {
                Action<ulong, string, int, string, int, int, byte> ac = new Action<ulong, string, int, string, int, int, byte>(OnPenCoordinate);
                Dispatcher.Invoke(ac, new object[] { time, pageSerial, penType, pageSerial, cx, cy, force });
            }
            else
            {
                //判断是否是落笔后输出的坐标，在设置悬浮模式下，落笔前的悬浮坐标不绘制
                if (!isPenDown)
                {
                    return;
                }
                stroke.Add(new System.Drawing.Point(cx, cy));

                double PropW = blackboard_canvas.ActualWidth / A4_HEIGHT;
                double PropH = blackboard_canvas.ActualHeight / A4_WIDTH;
                //点
                double testX = cy * PropW;
                double testY = (A4_WIDTH - cx) * PropH;
                //pageSerial //点阵IP地址  与打印的页面关联
                if (true)
                {
                    Dispatcher.Invoke(new Action(() =>
                    {
                        float Pressure = force / 100f;
                        ////添加笔画
                        //myblackboard.changepages(testX, testY, false, Color, PenSize, APP.pageData.currpage - 1, Pressure);

                        if (isFirst)
                        {
                            stylusPoint.X = testX;
                            stylusPoint.Y = testY;
                            //_color.A = (byte)(Pressure * 255f);
                            //stylusPoint.PressureFactor = Pressure;

                            //for(int i=0;i<100;i++)
                            //{
                            //    stylusPoint.X--;
                            //    stylusPoint.Y--;
                            //    stylusPoints.Add(stylusPoint);
                            //}
                            stylusPoints.Add(stylusPoint);
                            if (stylusPoints.Count > 1)
                            {
                                drawing = new DrawingAttributes
                                {
                                    Color = Colour,
                                    Width = Wit * 4.5,
                                    Height = Wit * 4.5,
                                    FitToCurve = true,
                                    IgnorePressure = false
                                };
                            
                                //blackboard_canvas.Strokes = new StrokeCollection();
                                strokes = new Stroke(stylusPoints);

                             
                                strokes.DrawingAttributes = drawing;
                                //blackboard_canvas.Strokes.Add(strokes);

                                blackboard_canvas.Strokes.Add(strokes);
                                isFirst = false;
                            }
                        }
                        else
                        {
                            if (blackboard_canvas.Strokes.Count>0)
                            {
                                stylusPoint.X = testX;
                                stylusPoint.Y = testY;
                                stylusPoints.Add(stylusPoint);
                                strokes = new Stroke(stylusPoints);
                                drawing = new DrawingAttributes
                                {
                                    Color = Colour,
                                    Width = Wit * 4.5,
                                    Height = Wit * 4.5,
                                    FitToCurve = true,
                                    IgnorePressure = false
                                };
                                strokes.DrawingAttributes = drawing;

                                //viewModel.InkStrokes.Add(strokes);
                                blackboard_canvas.Strokes[blackboard_canvas.Strokes.Count - 1] = strokes;
                            }
                        }

                        //设置鼠标位置
                        if (testX > 0 && testY > 0)
                        {
                            //System.Windows.Point getP = scroMain.PointToScreen(new System.Windows.Point(testX, testY - scroMain.VerticalOffset));
                            SetCursorPos((int)((float)testX* (PrimaryScreen.DpiX / 96f)), (int)((float)testY* (PrimaryScreen.DpiY / 96f)));
                        }
                    }));
                }

            }
        }
        bool isFirst = true;
        private StylusPointCollection stylusPoints = new StylusPointCollection();
        private StylusPoint stylusPoint = new StylusPoint();
        private Stroke strokes;
        /// <summary>
        /// 停止笔
        /// </summary>
        public void StopDigitalPen()
        {
            //停止，释放资源
            APP.digitalPen.Stop();
        }
        /// <summary>
        /// 清空笔内存储
        /// </summary>
        public void ClearPenStorage()
        {
            if (!string.IsNullOrEmpty(penSerial))
            {
                APP.digitalPen.ClearMemory(penSerial);
            }
        }
        /// <summary>
        /// 获取剩余电量
        /// </summary>
        public void GetPenElectricityQuantity()
        {
            if (!string.IsNullOrEmpty(penSerial))
            {
                APP.digitalPen.GetBatteryCapacity(penSerial);
            }
        }

        /// <summary>
        /// 获取存储空间
        /// </summary>
        public void GetUsedStorage()
        {
            if (!string.IsNullOrEmpty(penSerial))
            {
                APP.digitalPen.GetMemoryFillLevel(penSerial);
            }
        }

        /// <summary>
        /// 开启悬浮
        /// </summary>
        public void 开启悬浮()
        {
            if (!string.IsNullOrEmpty(penSerial))
            {
                APP.digitalPen.SetPenHoverMode(true, penSerial);
            }
        }

        /// <summary>
        /// 关闭悬浮
        /// </summary>
        public void 关闭悬浮()
        {
            if (!string.IsNullOrEmpty(penSerial))
            {
                APP.digitalPen.SetPenHoverMode(false, penSerial);
            }
        }

        /// <summary>
        /// 引用user32.dll动态链接库（windows api），
        /// 使用库中定义 API：SetCursorPos
        /// 设置光标位置
        /// </summary>
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        private static extern int SetCursorPos(int x, int y);

        #endregion

    }
}