C# 键盘操控鼠标指针

利用C#的键盘全局监听事件实现操控鼠标

有关C#的全局键盘监听，可参考其他网友的文章

http://blog.csdn.net/c0411034/article/details/70306464

用到了KeyboardHook这个类

可以利用Windows 的Api设置鼠标位置，也可以使用Cursor.Position 来设置位置

 //设置鼠标位置
        [DllImport("user32.DLL", EntryPoint = "SetCursorPos")]
        private static extern int SetCursorPos(int x,int y);

定义一些基本参数

 private int hSpeed = 0;//水平速度
 private int vSpeed = 0;//垂直速度
 private int acceleration = 1;//加速度
 private int max_speed = 10;//最大速度

在hook_KeyUp事件中判断释放的键，然后设置速度为0

 private void hook_KeyUp(object sender, KeyEventArgs e) {
            if (e.KeyData == Keys.Left || e.KeyData == Keys.Right)
            {
                hSpeed = 0;
            }
            else if (e.KeyData == Keys.Up || e.KeyData == Keys.Down)
            {
                vSpeed = 0;
            }
        }

在hook_KeyDown 事件中设置速度，根据加速度逐渐增加，速度不能大于最大速度

 private void hook_KeyDown(object sender,KeyEventArgs e) {
            if (e.KeyData == Keys.Left)
            {
                if(hSpeed > -(max_speed)) hSpeed -= acceleration;
            }
            else if (e.KeyData == Keys.Right)
            {
                if(hSpeed < max_speed) hSpeed += acceleration;
            }
            else if (e.KeyData == Keys.Up)
            {
                if (vSpeed > -(max_speed)) vSpeed -= acceleration;
            }
            else if (e.KeyData == Keys.Down)
            {
                if (vSpeed < max_speed) vSpeed += acceleration;
            }
        }

添加一个行动方法

private void move() {
            Thread t = new Thread(delegate() {
                System.Drawing.Point point = new System.Drawing.Point();
                while (true) {
                    int x = Cursor.Position.X;
                    int y = Cursor.Position.Y;
                    SetCursorPos(x+hSpeed,y+vSpeed);
                    Thread.Sleep(10);
                }
            });
            t.IsBackground = true;
            t.Start();
        }

下面是全部的代码

public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
        //设置鼠标位置
        [DllImport("user32.DLL", EntryPoint = "SetCursorPos")]
        private static extern int SetCursorPos(int x,int y);


        private KeyEventHandler handlerDown = null;
        private KeyEventHandler handlerUp = null;
        private KeyboardHook hook = new KeyboardHook();


        private int hSpeed = 0;//水平速度
        private int vSpeed = 0;//垂直速度
        private int acceleration = 1;//加速度
        private int max_speed = 10;//最大速度
        private void hook_KeyDown(object sender,KeyEventArgs e) {
            if (e.KeyData == Keys.Left)
            {
                if(hSpeed > -(max_speed)) hSpeed -= acceleration;
            }
            else if (e.KeyData == Keys.Right)
            {
                if(hSpeed < max_speed) hSpeed += acceleration;
            }
            else if (e.KeyData == Keys.Up)
            {
                if (vSpeed > -(max_speed)) vSpeed -= acceleration;
            }
            else if (e.KeyData == Keys.Down)
            {
                if (vSpeed < max_speed) vSpeed += acceleration;
            }
        }
        private void hook_KeyUp(object sender, KeyEventArgs e) {
            if (e.KeyData == Keys.Left || e.KeyData == Keys.Right)
            {
                hSpeed = 0;
            }
            else if (e.KeyData == Keys.Up || e.KeyData == Keys.Down)
            {
                vSpeed = 0;
            }
        }
        private void move() {
            Thread t = new Thread(delegate() {
                System.Drawing.Point point = new System.Drawing.Point();
                while (true) {
                    int x = Cursor.Position.X;
                    int y = Cursor.Position.Y;
                    SetCursorPos(x+hSpeed,y+vSpeed);
                    Thread.Sleep(10);
                }
            });
            t.IsBackground = true;
            t.Start();
        }
        //开启监听
        public void startListen() {
            handlerDown = new KeyEventHandler(hook_KeyDown);
            handlerUp = new KeyEventHandler(hook_KeyUp);
            hook.KeyDownEvent += handlerDown;
            hook.KeyUpEvent += handlerUp;
            hook.Start();//安装键盘钩子
        }
        //关闭监听
        public void stopListen() {
            if (handlerDown != null && handlerUp != null) {
                hook.KeyDownEvent -= handlerDown;
                hook.KeyUpEvent -= handlerUp;
                hook.Stop();//关闭键盘钩子
            }
        }
        private void button1_Click(object sender, EventArgs e)
        {
            this.startListen();
            this.move();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.stopListen();
        }

        private void Form2_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.stopListen();
        }
    }

记得在程序退出的时候要关闭监听哦

private void Form2_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.stopListen();
        }

这样一个利用键盘的上下左右就能超控鼠标的程序就完成啦！！

不过，这个只能移动鼠标，鼠标没有点击。