c#怎么监听程序窗体外的鼠标点击事件啊？

[s15885823584]

我在网上找到一个例子，自己试了一下，鼠标的移动监听可以实现，点击监听实现不了。具体代码如下：

第一个类：

 public class Win32Api
    {
        [StructLayout(LayoutKind.Sequential)]
        public class POINT
        {
            public int x;
            public int y;
        }
        [StructLayout(LayoutKind.Sequential)]
        public class MouseHookStruct
        {
            public POINT pt;
            public int hwnd;
            public int wHitTestCode;
            public int dwExtraInfo;
        }
        public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);
        //安装钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
        //卸载钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern bool UnhookWindowsHookEx(int idHook);
        //调用下一个钩子
        [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);
    }

第二个类：

 public class MouseHook
    {
        
        private Point point;
        private Point Point
        {
            get { return point; }
            set
            {
                if (point != value)
                {
                    point = value;
                    if (MouseMoveEvent != null)
                    {
                        var e = new MouseEventArgs(MouseButtons.Left, 0, point.X, point.Y, 0);
                        MouseMoveEvent(this, e);
                    }
                }
            }
        }
        private int hHook;
        public const int WH_MOUSE_LL = 14;
        public Win32Api.HookProc hProc;
        public MouseHook()
        {
            this.Point = new Point(); 
        }
        public int SetHook()
        {
            hProc = new Win32Api.HookProc(MouseHookProc);
            hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero,0);
            return hHook;
        }
        public void UnHook()
        {
            Win32Api.UnhookWindowsHookEx(hHook);
        }
        private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));
            if (nCode < 0)
            {
                return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);
            }
            else
            {
                this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);
                return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);
            }
        }
        //委托+事件（把钩到的消息封装为事件，由调用者处理）
        public delegate void MouseMoveHandler(object sender, MouseEventArgs e);
        public event MouseMoveHandler MouseMoveEvent;

        public delegate void MouseClickHandler(object sender, MouseEventArgs e);
        public event MouseClickHandler MouseClickEvent;
    }

操作：

 public partial class getLocationForm : Form
    {
        public getLocationForm(int[] location)
        {
            InitializeComponent();
        }

        MouseHook mh;
        private void getLocationForm_Load(object sender, EventArgs e)
        {
            mh = new MouseHook();
            mh.SetHook();
            mh.MouseMoveEvent += mh_MouseMoveEvent;
            mh.MouseClickEvent += mh_MouseClickEvent;
            
        }

        private void mh_MouseClickEvent(object sender, MouseEventArgs e)
        {
            MessageBox.Show(e.X + "-" + e.Y);
        }

        private void mh_MouseMoveEvent(object sender, MouseEventArgs e)
        {
            int x = e.Location.X;
            int y = e.Location.Y;
            textBox1.Text = x + "";
            textBox2.Text = y + "";
        }
        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            mh.UnHook();
        }

    }

也就是说移动鼠标时能执行private void mh_MouseMoveEvent(object sender, MouseEventArgs e)这个函数里的内容，但鼠标点击时不能执行 private void mh_MouseClickEvent(object sender, MouseEventArgs e)这个函数的内容。

问题就是怎么改才能实现鼠标点击监听呢？

[bdmh]

你在private Point Point中只执行了move委托，你在哪执行了click委托啊

[gxingmin]

你MouseHook类里对MouseMoveEvent事件处理了，没对 MouseClickEvent事件处理

[bdmh]

你应该在hook的回调中判断是否有鼠标按下，然后执行click委托

[Forty2]

提示一下：MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)中的wParam就是鼠标动作，可以是 WM_LBUTTONDOWN, WM_MOUSEMOVE, WM_MOUSEWHEEL等等。 如果你志在搬代码而不求甚解，...

[s15885823584]

楼上各位，在哪儿加语句啊，怎么加，求赐教啊，楼主是菜鸟

[於黾]

我发现越是菜鸟,越喜欢研究些高大上的东西,比如IE直接操作客户机,修改其他程序的内存变量,进程通信,截获系统鼠标事件什么的 就不敢先从基础开始研究嘛

[jy251]

hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero,0); 你只写了hook鼠标移动

[jy251]

错了，是这里 Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct)); 看了一晚上的帖子了···

[jy251]

你的代码里面，我上面赋值的那句话 你就处理了 this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y); 之触发了move的event

[notax]

改了改 MouseEventArgs(MouseButtons.None,再加个MouseClickEvent(this, e);就行

    public class MouseHook
    {
        private Point point;
        private Point Point
        {
            get { return point; }
            set
            {
                if (point != value)
                {
                    point = value;
                    if (MouseMoveEvent != null)
                    {
                        var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0);
                        MouseMoveEvent(this, e);
                    }
                }
            }
        }
        private int hHook;
        private const int WM_LBUTTONDOWN = 0x201;
        public const int WH_MOUSE_LL = 14;
        public Win32Api.HookProc hProc;
        public MouseHook()
        {
            this.Point = new Point();
        }
        public int SetHook()
        {
            hProc = new Win32Api.HookProc(MouseHookProc);
            hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0);
            return hHook;
        }
        public void UnHook()
        {
            Win32Api.UnhookWindowsHookEx(hHook);
        }
        private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct));
            if (nCode < 0)
            {
                return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);
            }
            else
            {
                if (MouseClickEvent != null)
                {
                    MouseButtons button = MouseButtons.None;
                    int clickCount = 0;
                    switch ((Int32)wParam)
                    {
                        case WM_LBUTTONDOWN: 
                            button = MouseButtons.Left;
                            clickCount = 1;
                            break;
                    }

                    var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0);
                    MouseClickEvent(this, e);
                }
                this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);
                return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam);
            }
        }
    
        public delegate void MouseMoveHandler(object sender, MouseEventArgs e);
        public event MouseMoveHandler MouseMoveEvent;

        public delegate void MouseClickHandler(object sender, MouseEventArgs e);
        public event MouseClickHandler MouseClickEvent;
    }

[notax]

再指定MouseButtons.Left

private void mh_MouseClickEvent(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                MessageBox.Show(e.X + "-" + e.Y);
            }
        }

[Blue布丁]

MouseClickEvent的方法没写对吧

[qq_29475157]

！！！！！！！