钩子函数,比较容易,网上资料多的是 得到鼠标的消息的类:using System; using System.Runtime.InteropServices; using System.Reflection; using System.Threading; using System.Windows.Forms; namespace HookGlobal { /// <summary> /// 这个类可以让你得到一个在运行中程序的所有鼠标事件 /// 并且引发一个带MouseEventArgs参数的.NET鼠标事件以便你很容易使用这些信息 /// </summary> public class MouseHook { private const int WM_MOUSEMOVE = 0x200; private const int WM_LBUTTONDOWN = 0x201; private const int WM_RBUTTONDOWN = 0x204; private const int WM_MBUTTONDOWN = 0x207; private const int WM_LBUTTONUP = 0x202; private const int WM_RBUTTONUP = 0x205; private const int WM_MBUTTONUP = 0x208; private const int WM_LBUTTONDBLCLK = 0x203; private const int WM_RBUTTONDBLCLK = 0x206; private const int WM_MBUTTONDBLCLK = 0x209; //全局的事件 public event MouseEventHandler OnMouseActivity; static int hMouseHook = 0; //鼠标钩子句柄 //鼠标常量 public const int WH_MOUSE_LL = 14; //mouse hook constant HookProc MouseHookProcedure; //声明鼠标钩子事件类型. //声明一个Point的封送类型 [StructLayout(LayoutKind.Sequential)] public class POINT { public int x; public int y; } //声明鼠标钩子的封送结构类型 [StructLayout(LayoutKind.Sequential)] public class MouseHookStruct { public POINT pt; public int hWnd; public int wHitTestCode; public int dwExtraInfo; } //装置钩子的函数 [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)] public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); //卸下钩子的函数 [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook);
//下一个钩挂的函数 [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)] public static extern int CallNextHookEx(int idHook, int nCode, Int32 wParam, IntPtr lParam); public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam); /// <summary> /// 墨认的构造函数构造当前类的实例. /// </summary> public MouseHook() { //Start(); } //析构函数. ~MouseHook() { Stop(); } public void Start() { //安装鼠标钩子 if(hMouseHook == 0) { //生成一个HookProc的实例. MouseHookProcedure = new HookProc(MouseHookProc); hMouseHook = SetWindowsHookEx( WH_MOUSE_LL, MouseHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0); //如果装置失败停止钩子 if(hMouseHook == 0 ) { Stop(); throw new Exception("SetWindowsHookEx failed."); } } } public void Stop() { bool retMouse =true; if(hMouseHook != 0) { retMouse = UnhookWindowsHookEx(hMouseHook); hMouseHook = 0; }
//如果卸下钩子失败 if (!(retMouse)) throw new Exception("UnhookWindowsHookEx failed."); } private int MouseHookProc(int nCode, Int32 wParam, IntPtr lParam) { //如果正常运行并且用户要监听鼠标的消息 if ((nCode >= 0) && (OnMouseActivity!=null)) { MouseButtons button=MouseButtons.None; int clickCount=0; switch (wParam) { case WM_LBUTTONDOWN: button=MouseButtons.Left; clickCount=1; break; case WM_LBUTTONUP: button=MouseButtons.Left; clickCount=1; break; case WM_LBUTTONDBLCLK: button=MouseButtons.Left; clickCount=2; break; case WM_RBUTTONDOWN: button=MouseButtons.Right; clickCount=1; break; case WM_RBUTTONUP: button=MouseButtons.Right; clickCount=1; break; case WM_RBUTTONDBLCLK: button=MouseButtons.Right; clickCount=2; break; } //从回调函数中得到鼠标的信息 MouseHookStruct MyMouseHookStruct = (MouseHookStruct) Marshal.PtrToStructure(lParam, typeof(MouseHookStruct)); MouseEventArgs e=new MouseEventArgs(button, clickCount, MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y, 0 ); OnMouseActivity(this, e); } return CallNextHookEx(hMouseHook, nCode, wParam, lParam); } } } 得到键盘消息的类: using System; using System.Runtime.InteropServices; using System.Reflection; using System.Threading; using System.Windows.Forms; namespace HookGlobal {
/// <summary> /// 这个类可以让你得到一个在运行中程序的所有键盘或鼠标事件 /// 并且引发一个带KeyEventArgs和MouseEventArgs参数的.NET事件以便你很容易使用这些信息 /// </summary> /// <res> /// 修改:lihx /// 修改时间:04.11.8 /// </res> public class KeyBordHook { private const int WM_KEYDOWN = 0x100;
private const int WM_KEYUP = 0x101; private const int WM_SYSKEYDOWN = 0x104; private const int WM_SYSKEYUP = 0x105;
//全局的事件 public event KeyEventHandler OnKeyDownEvent; public event KeyEventHandler OnKeyUpEvent; public event KeyPressEventHandler OnKeyPressEvent; static int hKeyboardHook = 0; //键盘钩子句柄 //鼠标常量 public const int WH_KEYBOARD_LL = 13; //keyboard hook constant HookProc KeyboardHookProcedure; //声明键盘钩子事件类型. //声明键盘钩子的封送结构类型 [StructLayout(LayoutKind.Sequential)] public class KeyboardHookStruct { public int vkCode; //表示一个在1到254间的虚似键盘码 public int scanCode; //表示硬件扫描码 public int flags; public int time; public int dwExtraInfo; } //装置钩子的函数 [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)] public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); //卸下钩子的函数 [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook);
//下一个钩挂的函数 [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)] public static extern int CallNextHookEx(int idHook, int nCode, Int32 wParam, IntPtr lParam); [DllImport("user32")] public static extern int ToAscii(int uVirtKey, int uScanCode, byte[] lpbKeyState,byte[] lpwTransKey, int fuState); [DllImport("user32")] public static extern int GetKeyboardState(byte[] pbKeyState); public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam); /// <summary> /// 墨认的构造函数构造当前类的实例并自动的运行起来. /// </summary> public KeyBordHook() { Start(); } //析构函数. ~KeyBordHook() { Stop(); } public void Start() { //安装键盘钩子 if(hKeyboardHook == 0) { KeyboardHookProcedure = new HookProc(KeyboardHookProc); hKeyboardHook = SetWindowsHookEx( WH_KEYBOARD_LL, KeyboardHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0); if(hKeyboardHook == 0 ) { Stop(); throw new Exception("SetWindowsHookEx ist failed."); } } } public void Stop() { bool retKeyboard = true;
if(hKeyboardHook != 0) { retKeyboard = UnhookWindowsHookEx(hKeyboardHook); hKeyboardHook = 0; } //如果卸下钩子失败 if (!(retKeyboard)) throw new Exception("UnhookWindowsHookEx failed."); } private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam) { if ((nCode >= 0) && (OnKeyDownEvent!=null || OnKeyUpEvent!=null || OnKeyPressEvent!=null)) { KeyboardHookStruct MyKeyboardHookStruct = (KeyboardHookStruct) Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct)); //引发OnKeyDownEvent if ( OnKeyDownEvent!=null && ( wParam ==WM_KEYDOWN || wParam==WM_SYSKEYDOWN )) { Keys keyData=(Keys)MyKeyboardHookStruct.vkCode; KeyEventArgs e = new KeyEventArgs(keyData); OnKeyDownEvent(this, e); }
//引发OnKeyPressEvent if ( OnKeyPressEvent!=null && wParam ==WM_KEYDOWN ) { byte[] keyState = new byte[256]; GetKeyboardState(keyState); byte[] inBuffer= new byte[2]; if (ToAscii(MyKeyboardHookStruct.vkCode, MyKeyboardHookStruct.scanCode, keyState, inBuffer, MyKeyboardHookStruct.flags)==1) { KeyPressEventArgs e = new KeyPressEventArgs((char)inBuffer[0]); OnKeyPressEvent(this, e); } }
得到鼠标的消息的类:using System;
using System.Runtime.InteropServices;
using System.Reflection;
using System.Threading;
using System.Windows.Forms;
namespace HookGlobal
{
/// <summary>
/// 这个类可以让你得到一个在运行中程序的所有鼠标事件
/// 并且引发一个带MouseEventArgs参数的.NET鼠标事件以便你很容易使用这些信息
/// </summary>
public class MouseHook
{
private const int WM_MOUSEMOVE = 0x200;
private const int WM_LBUTTONDOWN = 0x201;
private const int WM_RBUTTONDOWN = 0x204;
private const int WM_MBUTTONDOWN = 0x207;
private const int WM_LBUTTONUP = 0x202;
private const int WM_RBUTTONUP = 0x205;
private const int WM_MBUTTONUP = 0x208;
private const int WM_LBUTTONDBLCLK = 0x203;
private const int WM_RBUTTONDBLCLK = 0x206;
private const int WM_MBUTTONDBLCLK = 0x209;
//全局的事件
public event MouseEventHandler OnMouseActivity;
static int hMouseHook = 0; //鼠标钩子句柄
//鼠标常量
public const int WH_MOUSE_LL = 14; //mouse hook constant
HookProc MouseHookProcedure; //声明鼠标钩子事件类型.
//声明一个Point的封送类型
[StructLayout(LayoutKind.Sequential)]
public class POINT
{
public int x;
public int y;
}
//声明鼠标钩子的封送结构类型
[StructLayout(LayoutKind.Sequential)]
public class MouseHookStruct
{
public POINT pt;
public int hWnd;
public int wHitTestCode;
public int dwExtraInfo;
}
//装置钩子的函数
[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
//卸下钩子的函数
[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(int idHook);
//下一个钩挂的函数
[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern int CallNextHookEx(int idHook, int nCode, Int32 wParam, IntPtr lParam);
public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);
/// <summary>
/// 墨认的构造函数构造当前类的实例.
/// </summary>
public MouseHook()
{
//Start();
}
//析构函数.
~MouseHook()
{
Stop();
}
public void Start()
{
//安装鼠标钩子
if(hMouseHook == 0)
{
//生成一个HookProc的实例.
MouseHookProcedure = new HookProc(MouseHookProc);
hMouseHook = SetWindowsHookEx( WH_MOUSE_LL, MouseHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
//如果装置失败停止钩子
if(hMouseHook == 0 )
{
Stop();
throw new Exception("SetWindowsHookEx failed.");
}
}
}
public void Stop()
{
bool retMouse =true;
if(hMouseHook != 0)
{
retMouse = UnhookWindowsHookEx(hMouseHook);
hMouseHook = 0;
}
//如果卸下钩子失败
if (!(retMouse)) throw new Exception("UnhookWindowsHookEx failed.");
}
private int MouseHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
//如果正常运行并且用户要监听鼠标的消息
if ((nCode >= 0) && (OnMouseActivity!=null))
{
MouseButtons button=MouseButtons.None;
int clickCount=0;
switch (wParam)
{
case WM_LBUTTONDOWN:
button=MouseButtons.Left;
clickCount=1;
break;
case WM_LBUTTONUP:
button=MouseButtons.Left;
clickCount=1;
break;
case WM_LBUTTONDBLCLK:
button=MouseButtons.Left;
clickCount=2;
break;
case WM_RBUTTONDOWN:
button=MouseButtons.Right;
clickCount=1;
break;
case WM_RBUTTONUP:
button=MouseButtons.Right;
clickCount=1;
break;
case WM_RBUTTONDBLCLK:
button=MouseButtons.Right;
clickCount=2;
break;
}
//从回调函数中得到鼠标的信息
MouseHookStruct MyMouseHookStruct = (MouseHookStruct) Marshal.PtrToStructure(lParam, typeof(MouseHookStruct));
MouseEventArgs e=new MouseEventArgs(button, clickCount, MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y, 0 );
OnMouseActivity(this, e);
}
return CallNextHookEx(hMouseHook, nCode, wParam, lParam);
}
}
}
得到键盘消息的类:
using System;
using System.Runtime.InteropServices;
using System.Reflection;
using System.Threading;
using System.Windows.Forms;
namespace HookGlobal
{
/// <summary>
/// 这个类可以让你得到一个在运行中程序的所有键盘或鼠标事件
/// 并且引发一个带KeyEventArgs和MouseEventArgs参数的.NET事件以便你很容易使用这些信息
/// </summary>
/// <res>
/// 修改:lihx
/// 修改时间:04.11.8
/// </res>
public class KeyBordHook
{
private const int WM_KEYDOWN = 0x100;
private const int WM_SYSKEYDOWN = 0x104;
private const int WM_SYSKEYUP = 0x105;
//全局的事件
public event KeyEventHandler OnKeyDownEvent;
public event KeyEventHandler OnKeyUpEvent;
public event KeyPressEventHandler OnKeyPressEvent;
static int hKeyboardHook = 0; //键盘钩子句柄
//鼠标常量
public const int WH_KEYBOARD_LL = 13; //keyboard hook constant
HookProc KeyboardHookProcedure; //声明键盘钩子事件类型.
//声明键盘钩子的封送结构类型
[StructLayout(LayoutKind.Sequential)]
public class KeyboardHookStruct
{
public int vkCode; //表示一个在1到254间的虚似键盘码
public int scanCode; //表示硬件扫描码
public int flags;
public int time;
public int dwExtraInfo;
}
//装置钩子的函数
[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
//卸下钩子的函数
[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(int idHook);
//下一个钩挂的函数
[DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern int CallNextHookEx(int idHook, int nCode, Int32 wParam, IntPtr lParam);
[DllImport("user32")]
public static extern int ToAscii(int uVirtKey, int uScanCode, byte[] lpbKeyState,byte[] lpwTransKey, int fuState);
[DllImport("user32")]
public static extern int GetKeyboardState(byte[] pbKeyState);
public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);
/// <summary>
/// 墨认的构造函数构造当前类的实例并自动的运行起来.
/// </summary>
public KeyBordHook()
{
Start();
}
//析构函数.
~KeyBordHook()
{
Stop();
}
public void Start()
{
//安装键盘钩子
if(hKeyboardHook == 0)
{
KeyboardHookProcedure = new HookProc(KeyboardHookProc);
hKeyboardHook = SetWindowsHookEx( WH_KEYBOARD_LL, KeyboardHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
if(hKeyboardHook == 0 )
{
Stop();
throw new Exception("SetWindowsHookEx ist failed.");
}
}
}
public void Stop()
{
bool retKeyboard = true;
if(hKeyboardHook != 0)
{
retKeyboard = UnhookWindowsHookEx(hKeyboardHook);
hKeyboardHook = 0;
}
//如果卸下钩子失败
if (!(retKeyboard)) throw new Exception("UnhookWindowsHookEx failed.");
}
private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
if ((nCode >= 0) && (OnKeyDownEvent!=null || OnKeyUpEvent!=null || OnKeyPressEvent!=null))
{
KeyboardHookStruct MyKeyboardHookStruct = (KeyboardHookStruct) Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
//引发OnKeyDownEvent
if ( OnKeyDownEvent!=null && ( wParam ==WM_KEYDOWN || wParam==WM_SYSKEYDOWN ))
{
Keys keyData=(Keys)MyKeyboardHookStruct.vkCode;
KeyEventArgs e = new KeyEventArgs(keyData);
OnKeyDownEvent(this, e);
}
//引发OnKeyPressEvent
if ( OnKeyPressEvent!=null && wParam ==WM_KEYDOWN )
{
byte[] keyState = new byte[256];
GetKeyboardState(keyState);
byte[] inBuffer= new byte[2];
if (ToAscii(MyKeyboardHookStruct.vkCode,
MyKeyboardHookStruct.scanCode,
keyState,
inBuffer,
MyKeyboardHookStruct.flags)==1)
{
KeyPressEventArgs e = new KeyPressEventArgs((char)inBuffer[0]);
OnKeyPressEvent(this, e);
}
}
//引发OnKeyUpEvent
if ( OnKeyUpEvent!=null && ( wParam ==WM_KEYUP || wParam==WM_SYSKEYUP ))
{
Keys keyData=(Keys)MyKeyboardHookStruct.vkCode;
KeyEventArgs e = new KeyEventArgs(keyData);
OnKeyUpEvent(this, e);
}
}
return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam);
}
}
}
这个是什么意思啊!什么布局啊.
---------
控制结构中各类型参数按出现的次序在内存中依次排列,这是Attribute属性的应用,在托管代码调用非托管代码时经常用的
http://community.csdn.net/Expert/topic/5221/5221453.xml?temp=.9955713
已经解决了
[LayoutKind.Explicit] 用于控制每个数据成员的精确位置。
你可以通过应用程序一级的消息来得到对按键的处理。比如通过MessageFilter来对应用程序的每一个消息进行处理,可以参考下面的例子不用任何API就可以做到:using System;
using System.Collections.Generic;
using System.Windows.Forms;namespace AddMessageFilterApp
{
static class Program
{
class MsgFilter : IMessageFilter
{
public bool PreFilterMessage(ref Message m)
{
if (m.Msg == 0x100 && m.WParam == (IntPtr)0x11) //(WM_RBUTTONDOWN)
{
System.Console.WriteLine(m);
}
else if (m.Msg == 0x100)//WM_KEYDOWN
{
System.Console.WriteLine(m);
}
else if (m.Msg == 0x101)//WM_KEYUP
{
System.Console.WriteLine(m);
}
else if (m.Msg == 102)//WM_CHAR
{
System.Console.WriteLine(m);
}
return false;
}
} /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
MsgFilter ms=new MsgFilter();
Application.AddMessageFilter(ms);
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
Application.RemoveMessageFilter(ms);
}
}
}