各路神仙，能不能给个钩子例子给小弟！

[junsanrao]

要实现的功能
拿Notpad打比方
1、先运行所给例子
2、打开一个Notpad
3、该例子可以捕捉（钩住）当前光标
4、你在程序里面输入什么，什么就在Notpad中输出
感觉有点像输入法
先谢谢各路神仙进来指点

[junsanrao]

呵呵，你们别乱想，也没监控谁，就是想从这方面做个，多谢你们进来顶的兄弟啊，能帮忙的就帮我一把，七天，急啊

[ericzhangbo1982111]

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
using System.Diagnostics;
using System.IO;

namespace WindowsApplication1
{
/// <summary>
/// Description of MainForm.
/// </summary>
public partial class Form4 : Form
{

//委托
public delegate int HookProc(int nCode, int wParam, IntPtr lParam);
static int hHook = 0;
public const int WH_KEYBOARD_LL = 13;
//LowLevel键盘截获，如果是WH_KEYBOARD＝2，并不能对系统键盘截取，Acrobat Reader会在你截取之前获得键盘。
HookProc KeyBoardHookProcedure;
//键盘Hook结构函数
[StructLayout(LayoutKind.Sequential)]
public class KeyBoardHookStruct
{
public int vkCode;
public int scanCode;
public int flags;
public int time;
public int dwExtraInfo;
}
#region DllImport
//设置钩子
[DllImport("user32.dll")]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
//抽掉钩子
public static extern bool UnhookWindowsHookEx(int idHook);
[DllImport("user32.dll")]
//调用下一个钩子
public static extern int CallNextHookEx(int idHook, int nCode, int wParam, IntPtr lParam);

[DllImport("kernel32.dll")]
public static extern int GetCurrentThreadId();

[DllImport("kernel32.dll")]
public static extern IntPtr GetModuleHandle(string name);

#endregion
#region 自定义事件
public void Hook_Start()
{
// 安装键盘钩子
if (hHook == 0)
{
KeyBoardHookProcedure = new HookProc(KeyBoardHookProc);

//hHook = SetWindowsHookEx(2,
// KeyBoardHookProcedure,
// GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName), GetCurrentThreadId());

hHook = SetWindowsHookEx(WH_KEYBOARD_LL,
KeyBoardHookProcedure,
GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName), 0);

//如果设置钩子失败.
if (hHook == 0)
{
Hook_Clear();
//throw new Exception("设置Hook失败!");
}
}
}

//取消钩子事件
public void Hook_Clear()
{
bool retKeyboard = true;
if (hHook != 0)
{
retKeyboard = UnhookWindowsHookEx(hHook);
hHook = 0;
}
//如果去掉钩子失败.
if (!retKeyboard) throw new Exception("UnhookWindowsHookEx failed.");
}

//这里可以添加自己想要的信息处理
public static int KeyBoardHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
KeyBoardHookStruct kbh = (KeyBoardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyBoardHookStruct));
//if (kbh.vkCode == (int)Keys.S && (int)Control.ModifierKeys == (int)Keys.Control) // 截获F8
//{
// MessageBox.Show("快捷键已拦截!不能保存!");
// return 1;

//}
//if (kbh.vkCode == (int)Keys.Delete
// && (int)Control.ModifierKeys == (int)Keys.Control + (int)Keys.Alt) //截获Ctrl+Alt+Y
//{

// MessageBox.Show("!DeleteDeleteDeleteDeleteDelete");
// return 1;
//}
//if (kbh.vkCode == (int)Keys.X)
//{
// MessageBox.Show("不能全部保存!");
// return 1;
//}



file.Writer(kbh.vkCode.ToString());
//return 1;
}
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
#endregion

public Form4()
{

InitializeComponent();
}
static File FileStream file=new FileStream("input.txt",FileModel.Open)
private void button1_Click(object sender, EventArgs e)
{

Hook_Start();
}

private void button2_Click(object sender, EventArgs e)
{
Hook_Clear();
}


}
}

[51Crack]

路过，想做键盘记录？!
监控谁？!

[Deken_Muse]

我能进不

[zhnzzy]

up

[yunfeng007]

Global System Hooks in .NET
http://www.codeproject.com/KB/system/globalsystemhook.aspx
------------------------------------------------------------
Processing Global Mouse and Keyboard Hooks in C#
http://www.codeproject.com/csharp/globalhook.asp

[yagebu1983]

顶了！！
我也想知道！！

[junsanrao]

还有吗？快来啊

[voice007]

mark!

[zzultc]

10楼的根本不行！
貌似安装了全局钩子（对这点深感怀疑，C#根本不能做全局钩子）！
但是别忘了楼主的需求，需要在目标窗口把本进程的字符串写到目标窗口里！！

楼主要实现的功能
拿Notpad打比方
1、先运行所给例子
2、打开一个Notpad
3、该例子可以捕捉（钩住）当前光标
4、你在程序里面输入什么，什么就在Notpad中输出
感觉有点像输入法

为什么不调用textout API函数呢？
先得到目标窗口的hwnd，在得到窗口dc，然后可以直接写到上面啊？！

[zzultc]

如果真的需要做全局钩子，必须使用C/C++或者其他非托管语言做一个dll包装一下那些api函数！

[zzultc]

lpfn
[in] Pointer to the hook procedure. If the dwThreadId parameter is zero or specifies the identifier of a thread created by a different process, the lpfn parameter must point to a hook procedure in a dynamic-link library (DLL). Otherwise, lpfn can point to a hook procedure in the code associated with the current process.

以上是msdn中关于SetWindowsHookEx的函数中对lpfn的解释！！里边使用的是“must”！

[pfworld]

http://www.codeproject.com/KB/cs/globalhook/globalhook_src.zip

这个应该是你要找例子！

[wzuomin]

http://blog.csdn.net/wzuomin/archive/2007/06/18/1656315.aspx

利用Hook屏蔽鼠标及键盘一分钟示例
http://dl2.csdn.net/down4/20080321/21232150801.exe
源码请到这儿下载：
http://download.csdn.net/source/392508

[ziseliuxingzh]

WH_KEYBOARD_LL 是低级的,可以做全局钩子...10楼的OK

[sww5219999]

用文件流写入不行吗？但估计不能同步

[net0003]

学习

[junsanrao]

谢谢，大家这样的支持13楼说的很对，我去研究下，再次感谢

[junsanrao]

十分抱歉，15楼没给到分，但谢谢你哦

[junsanrao]

同一个？哎，又失误