【转】C#鼠标钩子
2008-04-20 21:38
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using System;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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namespace WindowsApplication1
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...{
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public partial class Form1 : Form
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...{
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public Form1()
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...{
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InitializeComponent();
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}
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private void Form1_Load(object sender, EventArgs e)
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...{
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Win32Hook hook = new Win32Hook();
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hook.onMouseChange += new EventHandler(hook_onMouseChange);
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hook.SetHook();
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}
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void hook_onMouseChange(object sender, EventArgs e)
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...{
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this.Text = Cursor.Position.ToString();
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}
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}
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public class Win32Hook
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...{
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[DllImport("kernel32")]
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public static extern int GetCurrentThreadId();
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[DllImport("user32",CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
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public static extern int SetWindowsHookEx(
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HookType idHook,
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HOOKPROC lpfn,
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int hmod,
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int dwThreadId);
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public enum HookType
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...{
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WH_GETMESSAGE = 3
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}
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public delegate int HOOKPROC(int nCode, int wParam, int lParam);
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public event System.EventHandler onMouseChange;
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public void SetHook()
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...{
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SetWindowsHookEx(HookType.WH_GETMESSAGE,
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new HOOKPROC(this.MyKeyboardProc),
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0,
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GetCurrentThreadId());
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}
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public int MyKeyboardProc(int nCode, int wParam, int lParam)
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...{
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if (onMouseChange != null)
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...{
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onMouseChange(null, null);
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}
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return 0;
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}
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}
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}