C#实现可捕获几乎所有键盘鼠标事件的钩子类完整实例

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
  }
}

								 
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