public partial class MainWindow : Window

    {

        #region 窗口贴边隐藏用的变量

        //鼠标坐标当前位置

        private MousePosition p = new MousePosition();

        MousePosition.POINT point;

        //窗口贴边隐藏用的变量

        private bool isHidd = false;

        public double CurrentTop { get; set; }

        #endregion

        //构造函数

        public MainWindow()

        {

            InitializeComponent();

            p.MouseMove(out point);

        }

        //鼠标进入窗口

        private void MainWindow_OnMouseMove(object sender, MouseEventArgs e)

        {

            if (!isHidd) return;

            while (CurrentTop < 0)

            {

                CurrentTop += 1;

                this.Top = CurrentTop;

            }

            isHidd = false;

        }

        //鼠标离开窗口

        private void MainWidow_OnMouseLeave(object sender, MouseEventArgs e)

        {

            if (isHidd) return;

            if (point.Y<=21)

            {

                CurrentTop = this.Top;

                while (CurrentTop>=-this.ActualHeight+8)

                {

                    CurrentTop += -1;

                    this.Top = CurrentTop;

                }

                isHidd = true;

            }

           

        }

        private void MainWidow_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)

        {

            this.DragMove();

            p.MouseMove(out point);

        }

    }

 

定义了一个MousePosition类。

  代码如下：

    public class MousePosition

    {

        [DllImport("User32")]

        public static extern bool GetCursorPos(out POINT pt);

        public struct POINT

        {

            public int X;

            public int Y;

            public POINT(int x, int y)

            {

                this.X = x;

                this.Y = y;

            }

        }

        //鼠标移动并计算坐标

        public void MouseMove(out POINT MousePoint)

        {

            GetCursorPos(out MousePoint);

        }

    }

前台可以自己设计。