鼠标键盘钩子集合
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Reflection;
using System.Windows.Forms;
namespace MouseKeyboardLibrary
{
/// <summary>
/// Abstract base class for Mouse and Keyboard hooks
/// </summary>
public abstract class GlobalHook
{
#region Windows API Code
[StructLayout(LayoutKind.Sequential)]
protected class POINT
{
public int x;
public int y;
}
[StructLayout(LayoutKind.Sequential)]
protected class MouseHookStruct
{
public POINT pt;
public int hwnd;
public int wHitTestCode;
public int dwExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
protected class MouseLLHookStruct
{
public POINT pt;
public int mouseData;
public int flags;
public int time;
public int dwExtraInfo;
}
[StructLayout(LayoutKind.Sequential)]
protected class KeyboardHookStruct
{
public int vkCode;
public int scanCode;
public int flags;
public int time;
public int dwExtraInfo;
}
[DllImport("user32.dll", CharSet = CharSet.Auto,
CallingConvention = CallingConvention.StdCall, SetLastError = true)]
protected static extern int SetWindowsHookEx(
int idHook,
HookProc lpfn,
IntPtr hMod,
int dwThreadId);
[DllImport("user32.dll", CharSet = CharSet.Auto,
CallingConvention = CallingConvention.StdCall, SetLastError = true)]
protected static extern int UnhookWindowsHookEx(int idHook);
[DllImport("user32.dll", CharSet = CharSet.Auto,
CallingConvention = CallingConvention.StdCall)]
protected static extern int CallNextHookEx(
int idHook,
int nCode,
int wParam,
IntPtr lParam);
[DllImport("user32")]
protected static extern int ToAscii(
int uVirtKey,
int uScanCode,
byte[] lpbKeyState,
byte[] lpwTransKey,
int fuState);
[DllImport("user32")]
protected static extern int GetKeyboardState(byte[] pbKeyState);
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
protected static extern short GetKeyState(int vKey);
protected delegate int HookProc(int nCode, int wParam, IntPtr lParam);
protected const int WH_MOUSE_LL = 14;
protected const int WH_KEYBOARD_LL = 13;
protected const int WH_MOUSE = 7;
protected const int WH_KEYBOARD = 2;
protected const int WM_MOUSEMOVE = 0x200;
protected const int WM_LBUTTONDOWN = 0x201;
protected const int WM_RBUTTONDOWN = 0x204;
protected const int WM_MBUTTONDOWN = 0x207;
protected const int WM_LBUTTONUP = 0x202;
protected const int WM_RBUTTONUP = 0x205;
protected const int WM_MBUTTONUP = 0x208;
protected const int WM_LBUTTONDBLCLK = 0x203;
protected const int WM_RBUTTONDBLCLK = 0x206;
protected const int WM_MBUTTONDBLCLK = 0x209;
protected const int WM_MOUSEWHEEL = 0x020A;
protected const int WM_KEYDOWN = 0x100;
protected const int WM_KEYUP = 0x101;
protected const int WM_SYSKEYDOWN = 0x104;
protected const int WM_SYSKEYUP = 0x105;
protected const byte VK_SHIFT = 0x10;
protected const byte VK_CAPITAL = 0x14;
protected const byte VK_NUMLOCK = 0x90;
protected const byte VK_LSHIFT = 0xA0;
protected const byte VK_RSHIFT = 0xA1;
protected const byte VK_LCONTROL = 0xA2;
protected const byte VK_RCONTROL = 0x3;
protected const byte VK_LALT = 0xA4;
protected const byte VK_RALT = 0xA5;
protected const byte LLKHF_ALTDOWN = 0x20;
#endregion
#region Private Variables
protected int _hookType;
protected int _handleToHook;
protected bool _isStarted;
protected HookProc _hookCallback;
#endregion
#region Properties
public bool IsStarted
{
get
{
return _isStarted;
}
}
#endregion
#region Constructor
public GlobalHook()
{
Application.ApplicationExit += new EventHandler(Application_ApplicationExit);
}
#endregion
#region Methods
public void Start()
{
if (!_isStarted &&
_hookType != 0)
{
// Make sure we keep a reference to this delegate!
// If not, GC randomly collects it, and a NullReference exception is thrown
_hookCallback = new HookProc(HookCallbackProcedure);
_handleToHook = SetWindowsHookEx(
_hookType,
_hookCallback,
Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),
0);
// Were we able to sucessfully start hook?
if (_handleToHook != 0)
{
_isStarted = true;
}
}
}
public void Stop()
{
if (_isStarted)
{
UnhookWindowsHookEx(_handleToHook);
_isStarted = false;
}
}
protected virtual int HookCallbackProcedure(int nCode, Int32 wParam, IntPtr lParam)
{
// This method must be overriden by each extending hook
return 0;
}
protected void Application_ApplicationExit(object sender, EventArgs e)
{
if (_isStarted)
{
Stop();
}
}
#endregion
}
}
using System;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace MouseKeyboardLibrary
{
/// <summary>
/// Captures global keyboard events
/// </summary>
public class KeyboardHook : GlobalHook
{
#region Events
public event KeyEventHandler KeyDown;
public event KeyEventHandler KeyUp;
public event KeyPressEventHandler KeyPress;
#endregion
#region Constructor
public KeyboardHook()
{
_hookType = WH_KEYBOARD_LL;
}
#endregion
#region Methods
protected override int HookCallbackProcedure(int nCode, int wParam, IntPtr lParam)
{
bool handled = false;
if (nCode > -1 && (KeyDown != null || KeyUp != null || KeyPress != null))
{
KeyboardHookStruct keyboardHookStruct =
(KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
// Is Control being held down?
bool control = ((GetKeyState(VK_LCONTROL) & 0x80) != 0) ||
((GetKeyState(VK_RCONTROL) & 0x80) != 0);
// Is Shift being held down?
bool shift = ((GetKeyState(VK_LSHIFT) & 0x80) != 0) ||
((GetKeyState(VK_RSHIFT) & 0x80) != 0);
// Is Alt being held down?
bool alt = ((GetKeyState(VK_LALT) & 0x80) != 0) ||
((GetKeyState(VK_RALT) & 0x80) != 0);
// Is CapsLock on?
bool capslock = (GetKeyState(VK_CAPITAL) != 0);
// Create event using keycode and control/shift/alt values found above
KeyEventArgs e = new KeyEventArgs(
(Keys)(
keyboardHookStruct.vkCode |
(control ? (int)Keys.Control : 0) |
(shift ? (int)Keys.Shift : 0) |
(alt ? (int)Keys.Alt : 0)
));
// Handle KeyDown and KeyUp events
switch (wParam)
{
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
if (KeyDown != null)
{
KeyDown(this, e);
handled = handled || e.Handled;
}
break;
case WM_KEYUP:
case WM_SYSKEYUP:
if (KeyUp != null)
{
KeyUp(this, e);
handled = handled || e.Handled;
}
break;
}
// Handle KeyPress event
if (wParam == WM_KEYDOWN &&
!handled &&
!e.SuppressKeyPress &&
KeyPress != null)
{
byte[] keyState = new byte[256];
byte[] inBuffer = new byte[2];
GetKeyboardState(keyState);
if (ToAscii(keyboardHookStruct.vkCode,
keyboardHookStruct.scanCode,
keyState,
inBuffer,
keyboardHookStruct.flags) == 1)
{
char key = (char)inBuffer[0];
if ((capslock ^ shift) && Char.IsLetter(key))
key = Char.ToUpper(key);
KeyPressEventArgs e2 = new KeyPressEventArgs(key);
KeyPress(this, e2);
handled = handled || e.Handled;
}
}
}
if (handled)
{
return 1;
}
else
{
return CallNextHookEx(_handleToHook, nCode, wParam, lParam);
}
}
#endregion
}
}
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace MouseKeyboardLibrary
{
/// <summary>
/// Standard Keyboard Shortcuts used by most applications
/// </summary>
public enum StandardShortcut
{
Copy,
Cut,
Paste,
SelectAll,
Save,
Open,
New,
Close,
Print
}
/// <summary>
/// Simulate keyboard key presses
/// </summary>
public static class KeyboardSimulator
{
#region Windows API Code
const int KEYEVENTF_EXTENDEDKEY = 0x1;
const int KEYEVENTF_KEYUP = 0x2;
[DllImport("user32.dll")]
static extern void keybd_event(byte key, byte scan, int flags, int extraInfo);
#endregion
#region Methods
public static void KeyDown(Keys key)
{
keybd_event(ParseKey(key), 0, 0, 0);
}
public static void KeyUp(Keys key)
{
keybd_event(ParseKey(key), 0, KEYEVENTF_KEYUP, 0);
}
public static void KeyPress(Keys key)
{
KeyDown(key);
KeyUp(key);
}
public static void SimulateStandardShortcut(StandardShortcut shortcut)
{
switch (shortcut)
{
case StandardShortcut.Copy:
KeyDown(Keys.Control);
KeyPress(Keys.C);
KeyUp(Keys.Control);
break;
case StandardShortcut.Cut:
KeyDown(Keys.Control);
KeyPress(Keys.X);
KeyUp(Keys.Control);
break;
case StandardShortcut.Paste:
KeyDown(Keys.Control);
KeyPress(Keys.V);
KeyUp(Keys.Control);
break;
case StandardShortcut.SelectAll:
KeyDown(Keys.Control);
KeyPress(Keys.A);
KeyUp(Keys.Control);
break;
case StandardShortcut.Save:
KeyDown(Keys.Control);
KeyPress(Keys.S);
KeyUp(Keys.Control);
break;
case StandardShortcut.Open:
KeyDown(Keys.Control);
KeyPress(Keys.O);
KeyUp(Keys.Control);
break;
case StandardShortcut.New:
KeyDown(Keys.Control);
KeyPress(Keys.N);
KeyUp(Keys.Control);
break;
case StandardShortcut.Close:
KeyDown(Keys.Alt);
KeyPress(Keys.F4);
KeyUp(Keys.Alt);
break;
case StandardShortcut.Print:
KeyDown(Keys.Control);
KeyPress(Keys.P);
KeyUp(Keys.Control);
break;
}
}
static byte ParseKey(Keys key)
{
// Alt, Shift, and Control need to be changed for API function to work with them
switch (key)
{
case Keys.Alt:
return (byte)18;
case Keys.Control:
return (byte)17;
case Keys.Shift:
return (byte)16;
default:
return (byte)key;
}
}
#endregion
}
}
using System;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace MouseKeyboardLibrary
{
/// <summary>
/// Captures global mouse events
/// </summary>
public class MouseHook : GlobalHook
{
#region MouseEventType Enum
private enum MouseEventType
{
None,
MouseDown,
MouseUp,
DoubleClick,
MouseWheel,
MouseMove
}
#endregion
#region Events
public event MouseEventHandler MouseDown;
public event MouseEventHandler MouseUp;
public event MouseEventHandler MouseMove;
public event MouseEventHandler MouseWheel;
public event EventHandler Click;
public event EventHandler DoubleClick;
#endregion
#region Constructor
public MouseHook()
{
_hookType = WH_MOUSE_LL;
}
#endregion
#region Methods
protected override int HookCallbackProcedure(int nCode, int wParam, IntPtr lParam)
{
if (nCode > -1 && (MouseDown != null || MouseUp != null || MouseMove != null))
{
MouseLLHookStruct mouseHookStruct =
(MouseLLHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseLLHookStruct));
MouseButtons button = GetButton(wParam);
MouseEventType eventType = GetEventType(wParam);
MouseEventArgs e = new MouseEventArgs(
button,
(eventType == MouseEventType.DoubleClick ? 2 : 1),
mouseHookStruct.pt.x,
mouseHookStruct.pt.y,
(eventType == MouseEventType.MouseWheel ? (short)((mouseHookStruct.mouseData >> 16) & 0xffff) : 0));
// Prevent multiple Right Click events (this probably happens for popup menus)
if (button == MouseButtons.Right && mouseHookStruct.flags != 0)
{
eventType = MouseEventType.None;
}
switch (eventType)
{
case MouseEventType.MouseDown:
if (MouseDown != null)
{
MouseDown(this, e);
}
break;
case MouseEventType.MouseUp:
if (Click != null)
{
Click(this, new EventArgs());
}
if (MouseUp != null)
{
MouseUp(this, e);
}
break;
case MouseEventType.DoubleClick:
if (DoubleClick != null)
{
DoubleClick(this, new EventArgs());
}
break;
case MouseEventType.MouseWheel:
if (MouseWheel != null)
{
MouseWheel(this, e);
}
break;
case MouseEventType.MouseMove:
if (MouseMove != null)
{
MouseMove(this, e);
}
break;
default:
break;
}
}
return CallNextHookEx(_handleToHook, nCode, wParam, lParam);
}
private MouseButtons GetButton(Int32 wParam)
{
switch (wParam)
{
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
return MouseButtons.Left;
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
return MouseButtons.Right;
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
return MouseButtons.Middle;
default:
return MouseButtons.None;
}
}
private MouseEventType GetEventType(Int32 wParam)
{
switch (wParam)
{
case WM_LBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_MBUTTONDOWN:
return MouseEventType.MouseDown;
case WM_LBUTTONUP:
case WM_RBUTTONUP:
case WM_MBUTTONUP:
return MouseEventType.MouseUp;
case WM_LBUTTONDBLCLK:
case WM_RBUTTONDBLCLK:
case WM_MBUTTONDBLCLK:
return MouseEventType.DoubleClick;
case WM_MOUSEWHEEL:
return MouseEventType.MouseWheel;
case WM_MOUSEMOVE:
return MouseEventType.MouseMove;
default:
return MouseEventType.None;
}
}
#endregion
}
}
using System;
using System.Text;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Windows.Forms;
namespace MouseKeyboardLibrary
{
/// <summary>
/// And X, Y point on the screen
/// </summary>
public struct MousePoint
{
public MousePoint(Point p)
{
X = p.X;
Y = p.Y;
}
public int X;
public int Y;
public static implicit operator Point(MousePoint p)
{
return new Point(p.X, p.Y);
}
}
/// <summary>
/// Mouse buttons that can be pressed
/// </summary>
public enum MouseButton
{
Left = 0x2,
Right = 0x8,
Middle = 0x20
}
/// <summary>
/// Operations that simulate mouse events
/// </summary>
public static class MouseSimulator
{
#region Windows API Code
[DllImport("user32.dll")]
static extern int ShowCursor(bool show);
[DllImport("user32.dll")]
static extern void mouse_event(int flags, int dX, int dY, int buttons, int extraInfo);
const int MOUSEEVENTF_MOVE = 0x1;
const int MOUSEEVENTF_LEFTDOWN = 0x2;
const int MOUSEEVENTF_LEFTUP = 0x4;
const int MOUSEEVENTF_RIGHTDOWN = 0x8;
const int MOUSEEVENTF_RIGHTUP = 0x10;
const int MOUSEEVENTF_MIDDLEDOWN = 0x20;
const int MOUSEEVENTF_MIDDLEUP = 0x40;
const int MOUSEEVENTF_WHEEL = 0x800;
const int MOUSEEVENTF_ABSOLUTE = 0x8000;
#endregion
#region Properties
/// <summary>
/// Gets or sets a structure that represents both X and Y mouse coordinates
/// </summary>
public static MousePoint Position
{
get
{
return new MousePoint(Cursor.Position);
}
set
{
Cursor.Position = value;
}
}
/// <summary>
/// Gets or sets only the mouse's x coordinate
/// </summary>
public static int X
{
get
{
return Cursor.Position.X;
}
set
{
Cursor.Position = new Point(value, Y);
}
}
/// <summary>
/// Gets or sets only the mouse's y coordinate
/// </summary>
public static int Y
{
get
{
return Cursor.Position.Y;
}
set
{
Cursor.Position = new Point(X, value);
}
}
#endregion
#region Methods
/// <summary>
/// Press a mouse button down
/// </summary>
/// <param name="button"></param>
public static void MouseDown(MouseButton button)
{
mouse_event(((int)button), 0, 0, 0, 0);
}
public static void MouseDown(MouseButtons button)
{
switch (button)
{
case MouseButtons.Left:
MouseDown(MouseButton.Left);
break;
case MouseButtons.Middle:
MouseDown(MouseButton.Middle);
break;
case MouseButtons.Right:
MouseDown(MouseButton.Right);
break;
}
}
/// <summary>
/// Let a mouse button up
/// </summary>
/// <param name="button"></param>
public static void MouseUp(MouseButton button)
{
mouse_event(((int)button) * 2, 0, 0, 0, 0);
}
public static void MouseUp(MouseButtons button)
{
switch (button)
{
case MouseButtons.Left:
MouseUp(MouseButton.Left);
break;
case MouseButtons.Middle:
MouseUp(MouseButton.Middle);
break;
case MouseButtons.Right:
MouseUp(MouseButton.Right);
break;
}
}
/// <summary>
/// Click a mouse button (down then up)
/// </summary>
/// <param name="button"></param>
public static void Click(MouseButton button)
{
MouseDown(button);
MouseUp(button);
}
public static void Click(MouseButtons button)
{
switch (button)
{
case MouseButtons.Left:
Click(MouseButton.Left);
break;
case MouseButtons.Middle:
Click(MouseButton.Middle);
break;
case MouseButtons.Right:
Click(MouseButton.Right);
break;
}
}
/// <summary>
/// Double click a mouse button (down then up twice)
/// </summary>
/// <param name="button"></param>
public static void DoubleClick(MouseButton button)
{
Click(button);
Click(button);
}
public static void DoubleClick(MouseButtons button)
{
switch (button)
{
case MouseButtons.Left:
DoubleClick(MouseButton.Left);
break;
case MouseButtons.Middle:
DoubleClick(MouseButton.Middle);
break;
case MouseButtons.Right:
DoubleClick(MouseButton.Right);
break;
}
}
/// <summary>
/// Show a hidden current on currently application
/// </summary>
public static void Show()
{
ShowCursor(true);
}
/// <summary>
/// Hide mouse cursor only on current application's forms
/// </summary>
public static void Hide()
{
ShowCursor(false);
}
#endregion
}
}
1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Windows.Forms; 9 10 using MouseKeyboardLibrary; 11 12 namespace SampleApplication 13 { 14 /* 15 上面的5个类编译成Dll引用,使用例子 16 */ 17 public partial class HookTestForm : Form 18 { 19 20 MouseHook mouseHook = new MouseHook(); 21 KeyboardHook keyboardHook = new KeyboardHook(); 22 23 public HookTestForm() 24 { 25 InitializeComponent(); 26 } 27 28 private void TestForm_Load(object sender, EventArgs e) 29 { 30 31 mouseHook.MouseMove += new MouseEventHandler(mouseHook_MouseMove); 32 mouseHook.MouseDown += new MouseEventHandler(mouseHook_MouseDown); 33 mouseHook.MouseUp += new MouseEventHandler(mouseHook_MouseUp); 34 mouseHook.MouseWheel += new MouseEventHandler(mouseHook_MouseWheel); 35 36 keyboardHook.KeyDown += new KeyEventHandler(keyboardHook_KeyDown); 37 keyboardHook.KeyUp += new KeyEventHandler(keyboardHook_KeyUp); 38 keyboardHook.KeyPress += new KeyPressEventHandler(keyboardHook_KeyPress); 39 40 mouseHook.Start(); 41 keyboardHook.Start(); 42 43 SetXYLabel(MouseSimulator.X, MouseSimulator.Y); 44 45 } 46 47 void keyboardHook_KeyPress(object sender, KeyPressEventArgs e) 48 { 49 50 AddKeyboardEvent( 51 "KeyPress", 52 "", 53 e.KeyChar.ToString(), 54 "", 55 "", 56 "" 57 ); 58 59 } 60 61 void keyboardHook_KeyUp(object sender, KeyEventArgs e) 62 { 63 64 AddKeyboardEvent( 65 "KeyUp", 66 e.KeyCode.ToString(), 67 "", 68 e.Shift.ToString(), 69 e.Alt.ToString(), 70 e.Control.ToString() 71 ); 72 73 } 74 75 void keyboardHook_KeyDown(object sender, KeyEventArgs e) 76 { 77 78 79 AddKeyboardEvent( 80 "KeyDown", 81 e.KeyCode.ToString(), 82 "", 83 e.Shift.ToString(), 84 e.Alt.ToString(), 85 e.Control.ToString() 86 ); 87 88 } 89 90 void mouseHook_MouseWheel(object sender, MouseEventArgs e) 91 { 92 93 AddMouseEvent( 94 "MouseWheel", 95 "", 96 "", 97 "", 98 e.Delta.ToString() 99 ); 100 101 } 102 103 void mouseHook_MouseUp(object sender, MouseEventArgs e) 104 { 105 106 107 AddMouseEvent( 108 "MouseUp", 109 e.Button.ToString(), 110 e.X.ToString(), 111 e.Y.ToString(), 112 "" 113 ); 114 115 } 116 117 void mouseHook_MouseDown(object sender, MouseEventArgs e) 118 { 119 120 121 AddMouseEvent( 122 "MouseDown", 123 e.Button.ToString(), 124 e.X.ToString(), 125 e.Y.ToString(), 126 "" 127 ); 128 129 130 } 131 132 void mouseHook_MouseMove(object sender, MouseEventArgs e) 133 { 134 135 SetXYLabel(e.X, e.Y); 136 137 } 138 139 void SetXYLabel(int x, int y) 140 { 141 142 curXYLabel.Text = String.Format("Current Mouse Point: X={0}, y={1}", x, y); 143 144 } 145 146 void AddMouseEvent(string eventType, string button, string x, string y, string delta) 147 { 148 149 listView1.Items.Insert(0, 150 new ListViewItem( 151 new string[]{ 152 eventType, 153 button, 154 x, 155 y, 156 delta 157 })); 158 159 } 160 161 void AddKeyboardEvent(string eventType, string keyCode, string keyChar, string shift, string alt, string control) 162 { 163 164 listView2.Items.Insert(0, 165 new ListViewItem( 166 new string[]{ 167 eventType, 168 keyCode, 169 keyChar, 170 shift, 171 alt, 172 control 173 })); 174 175 } 176 177 private void TestForm_FormClosed(object sender, FormClosedEventArgs e) 178 { 179 180 // Not necessary anymore, will stop when application exits 181 182 //mouseHook.Stop(); 183 //keyboardHook.Stop(); 184 185 } 186 187 188 } 189 }
posted on 2018-03-26 17:50 Gavin_Ding 阅读(143) 评论(0) 收藏 举报
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