说明:该篇随笔的代码内容并非出自本人,是在其他网站搜寻的,出处已经不记得了,本次随笔只为记录,目的帮助自己,帮助他人。
实现的原理也不做多的赘述,直接上代码。
第一个类是需要用到的Windows API
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); }
第二个类是用于监控鼠标移动,鼠标点击的
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; private const int WM_RBUTTONDOWN = 0x204; 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; case WM_RBUTTONDOWN: button = MouseButtons.Right; 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; }
最后直接在窗体中调用重写的事件即可
public getLocationForm() { 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) { if (e.Button == MouseButtons.Right) { //MessageBox.Show(e.X + "-" + e.Y); textBox1.Text = e.X.ToString(); textBox2.Text = e.Y.ToString(); } } 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(); }