C#使用鼠标钩子

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
//
using HookTest;

namespace HookTest
{
public partial class FormMain : Form
{
//钩子类型
/// WH_MOUSE_LL -> 14
public const int WH_MOUSE_LL = 14;
//
//Windows消息
/// WM_LBUTTONUP -> 0x0202
public const int WM_LBUTTONUP = 514;

ClassWinAPI.HOOKPROC hHockProc;//钩子处理函数
int hMouseHook;//钩子句柄

public FormMain()
{
InitializeComponent();
}
public IntPtr MouseHookProc(int code, int wParam, System.IntPtr lParam)
{
//Windows消息
uint msg = (uint)wParam;
//鼠标信息
ClassWinAPI.MouseHookStruct mouseHookStruct = (ClassWinAPI.MouseHookStruct) System.Runtime.InteropServices.Marshal.PtrToStructure(
lParam,typeof(ClassWinAPI.MouseHookStruct));
if (msg == WM_LBUTTONUP)
{
this.Text = mouseHookStruct.pt.x.ToString() + "--" + mouseHookStruct.pt.y.ToString();
}
//
IntPtr pMouseHook = System.Runtime.InteropServices.Marshal.AllocHGlobal(System.Runtime.InteropServices.Marshal.SizeOf(hMouseHook));
System.Runtime.InteropServices.Marshal.StructureToPtr(hMouseHook, pMouseHook, true);
System.Runtime.InteropServices.Marshal.DestroyStructure(pMouseHook,typeof(IntPtr));
return ClassWinAPI.CallNextHookEx(pMouseHook,code,wParam,lParam);
}

private void FormMain_Load(object sender, EventArgs e)
{
hHockProc = new ClassWinAPI.HOOKPROC(MouseHookProc);
hMouseHook = ClassWinAPI.SetWindowsHookExW(WH_MOUSE_LL, hHockProc, IntPtr.Zero,0);
}

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
ClassWinAPI.UnhookWindowsHookEx(hMouseHook);
}
}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HookTest
{
class ClassWinAPI
{
[System.Runtime.InteropServices.UnmanagedFunctionPointerAttribute(System.Runtime.InteropServices.CallingConvention.StdCall)]
public delegate IntPtr HOOKPROC(int code, int wParam, System.IntPtr lParam);

[System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
public struct POINT
{
public int x;
public int y;
};

[System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
public struct MouseHookStruct
{
public POINT pt;
public int hwnd;
public int wHitTestCode;
public int dwExtraInfo;
};

[System.Runtime.InteropServices.DllImportAttribute("user32.dll", EntryPoint = "SetWindowsHookExW")]
public static extern int SetWindowsHookExW(
int idHook,
HOOKPROC lpfn,
[System.Runtime.InteropServices.InAttribute()] System.IntPtr hmod,
uint dwThreadId);

[System.Runtime.InteropServices.DllImportAttribute("user32.dll", EntryPoint = "UnhookWindowsHookEx")]
[return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
public static extern bool UnhookWindowsHookEx(int hhk);

[System.Runtime.InteropServices.DllImportAttribute("user32.dll", EntryPoint = "CallNextHookEx")]
[return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.SysInt)]
public static extern IntPtr CallNextHookEx(
[System.Runtime.InteropServices.InAttribute()] System.IntPtr hhk,
int nCode,
int wParam,
[System.Runtime.InteropServices.InAttribute()] System.IntPtr lParam);
}
}