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protected override void OnKeyDown(KeyEventArgs e)
{
if (Keyboard.Modifiers == ModifierKeys.Alt || Keyboard.Modifiers==ModifierKeys.Control ||
Keyboard.Modifiers== ModifierKeys.Windows|| Keyboard.Modifiers==ModifierKeys.Shift
)
{
e.Handled = true;
}
else
{
base.OnKeyDown(e);
}
}
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;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
IntPtr CurrHook; //得到钩子句柄
[DllImport("kernel32.dll")]
public static extern int GetCurrentThreadId(); //得到线程ID
[DllImport("user32.dll")]
//--------开始装钩子HookType:钩子类型,backCall:回调委托,MyNull:当前实例句柄,ThreadId:线程ID
public static extern IntPtr SetWindowsHookEx(int HookType, KeyBackCall backCall, IntPtr MyNull, int ThreadId);
[DllImport("user32.dll")]
public static extern IntPtr CallNextHookEx(IntPtr CurrHook, int nCode, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
public static extern void UnhookWindowsHookEx(IntPtr CurrHook);
//----回调的委托
public delegate IntPtr KeyBackCall(int nCode, IntPtr wParam, IntPtr lParam);
//--------委托事件
public IntPtr KeyBackCallEvent(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode > 0)
{
MessageBox.Show(wParam.ToString());
return CallNextHookEx(CurrHook, nCode, wParam, lParam);
}
return CallNextHookEx(CurrHook, nCode, wParam, lParam);
}
private void button1_Click(object sender, EventArgs e)
{
CurrHook = SetWindowsHookEx(2, new KeyBackCall(KeyBackCallEvent), IntPtr.Zero, GetCurrentThreadId());
}
private void button2_Click(object sender, EventArgs e)
{
UnhookWindowsHookEx(CurrHook);
}
if (isInSelectElement(pageText, inde, ref estrat, ref eend, ref etype) == true && (etype == 0 || etype == 2))//在选择类型的简单元素中
{
startindex = richTextBox1.SelectionStart;
OnDoubleClick(null, null); //在选择元素中空白时 效果等于双击
//
}
else
{
Hook_Clear();
}
#region 键盘钩子
public delegate int HookProc(int nCode, int wParam, IntPtr lParam);
static int hHook = 0;
public const int WH_KEYBOARD_LL = 13;
public int startindex = -1;
//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);
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.");
}
public int KeyBoardHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0)
{
KeyBoardHookStruct kbh = (KeyBoardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyBoardHookStruct));
if (kbh.vkCode == 32) //空格
{
int estrat = 0;
int eend = 0;
int etype = -1; //简单元素类型:0选择类,1是输入框,2是诊断类
if (richTextBox1.ReadOnly == false)
{
int inde = 0;
try
{
inde = richTextBox1.SelectionStart;
}
catch (Exception)
{
inde = 0;
Hook_Clear();
}
if (isInSelectElement(pageText, inde, ref estrat, ref eend, ref etype) == true && (etype == 0 || etype == 2))//在选择类型的简单元素中
{
startindex = richTextBox1.SelectionStart;
OnDoubleClick(null, null); //在选择元素中空白时 效果等于双击
//
}
else
{
Hook_Clear();
}
}
return 1;
}
}
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
#endregion