C#用windows Api Hooks 控制鼠标键盘在一个窗体内

Posted 2023-04-06

其实功能很简单，我也做了一半，现在问题是语言是C#
获取一个窗体的句柄，让后把鼠标控制在此窗体里面（也就是不可以离开此窗体），键盘也一样，最好可以控制ctrl+alt+delete的组合键，我做了下，有难度、、、

源码也行，理论也行。谢谢各位

主要是第一个窗体类.其他的2个类是我封装的WINDOWS API

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 HookDemo

public partial class Form1 : Form

private System.Windows.Forms.Timer monitorTimer = null;
private Kits.Hook.WinHook mouseHook = null;
private IntPtr HWND = IntPtr.Zero;

public Form1()

InitializeComponent();
this.monitorTimer = new Timer();
this.monitorTimer.Tick += new EventHandler(this.TimeProc);
this.monitorTimer.Interval = 1000;
mouseHook = new Kits.Hook.WinHook(Kits.Win32API.HookType.WH_MOUSE_LL);


private void Form1_Load(object sender, EventArgs e)

this.WindowState = FormWindowState.Minimized;
this.monitorTimer.Enabled = true;


private void TimeProc(object sender, EventArgs e)

HWND = Kits.Win32API.WinAPI.FindWindow("Notepad", null);
if (HWND != IntPtr.Zero)

//Kits.Win32API.CSharpRect rect = new Kits.Win32API.CSharpRect();
//Kits.Win32API.WinAPI.GetWindowRect(HWND, ref rect);
//this.Text = string.Format("0,1,2,3",rect.top,rect.left,rect.width,rect.height);
if (HWND == Kits.Win32API.WinAPI.GetForegroundWindow())

mouseHook.SetWindowsHookEx(new Kits.Win32API.HookProc(this.MouseHookProc));

else

if (mouseHook.HHook != 0)

mouseHook.UnhookWindowsHookEx();





private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)

if (wParam == new IntPtr((int)Kits.Win32API.WindowsMessages.WM_MOUSEMOVE))

bool isOut = false;
Kits.Win32API.MouseHookStruct MyMouseHookStruct = (Kits.Win32API.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Kits.Win32API.MouseHookStruct));
Kits.Win32API.CSharpRect rect = new Kits.Win32API.CSharpRect();
Kits.Win32API.WinAPI.GetWindowRect(HWND, ref rect);
if (MyMouseHookStruct.pt.x >= rect.right)
isOut = true;
if (MyMouseHookStruct.pt.x <= rect.left)
isOut = true;
if (MyMouseHookStruct.pt.y <= rect.top)
isOut = true;
if (MyMouseHookStruct.pt.y >= rect.bottom)
isOut = true;

//Cursor.Position = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y);
if (isOut)
return -1;

return Kits.Win32API.WinAPI.CallNextHookEx(mouseHook.HHook, nCode, wParam, lParam);




using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace Kits.Win32API

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

public class WinAPI

[DllImport("User32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);

[DllImport("User32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(int idHook);

[DllImport("User32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

[DllImport("kernel32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
private static extern IntPtr GetModuleHandle(string lpModuleName);

[DllImport("User32.dll")]
public static extern IntPtr FindWindow(string lpClassName,string lpWindowName);

[DllImport("User32.dll")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

[DllImport("User32.dll")]
public static extern void keybd_event(Byte bVk, Byte bScan, Int32 dwFlags, Int32 dwExtraInfo);

[DllImport("user32")]
public static extern IntPtr GetActiveWindow();

[DllImport("user32")]
public static extern IntPtr GetForegroundWindow();

[DllImport("user32")]
public static extern int GetWindowRect(IntPtr hwnd, ref CSharpRect lpRect);

[DllImport("user32")]
public static extern int SetCaretPos(int x, int y);

[DllImport("user32")]
public static extern int ScreenToClient(IntPtr hwnd, ref POINTAPI lpPoint);

[DllImport("user32")]
public static extern int ClientToScreen(IntPtr hwnd, ref POINTAPI lpPoint);

[DllImport("user32")]
public static extern int SetCursorPos(int x, int y);


public struct POINTAPI

public int x;
public int y;


public struct RECT

public long left;
public long top;
public long right;
public long bottom;


public struct CSharpRect

public int top;
public int left;
public int right;
public int bottom;


public enum HookType : int

WH_JOURNALRECORD = 0,
WH_JOURNALPLAYBACK = 1,
WH_KEYBOARD = 2,
WH_GETMESSAGE = 3,
WH_CALLWNDPROC = 4,
WH_CBT = 5,
WH_SYSMSGFILTER = 6,
WH_MOUSE = 7,
WH_HARDWARE = 8,
WH_DEBUG = 9,
WH_SHELL = 10,
WH_FOREGROUNDIDLE = 11,
WH_CALLWNDPROCRET = 12,
WH_KEYBOARD_LL = 13,
WH_MOUSE_LL = 14


[StructLayout(LayoutKind.Sequential)]
public class POINT

public int x;
public int y;


[StructLayout(LayoutKind.Sequential)]
public class MouseHookStruct

public POINT pt;
public int wHitTestCode;
public int dwExtraInfo;


[StructLayout(LayoutKind.Sequential)]
public class MouseLLHookStruct

public POINT pt;
public int mouseData;
public int flags;
public int time;
public int dwExtraInfo;


[StructLayout(LayoutKind.Sequential)]
public class KeyboardHookStruct

public int vkCode;
public int scanCode;
public int flags;
public int time;
public int dwExtraInfo;


public enum WindowsMessages:int

WM_ACTIVATE = 0x6,
WM_ACTIVATEAPP = 0x1C,
WM_AFXFIRST = 0x360,
WM_AFXLAST = 0x37F,
WM_APP = 0x8000,
WM_ASKCBFORMATNAME = 0x30C,
WM_CANCELJOURNAL = 0x4B,
WM_CANCELMODE = 0x1F,
WM_CAPTURECHANGED = 0x215,
WM_CHANGECBCHAIN = 0x30D,
WM_CHAR = 0x102,
WM_CHARTOITEM = 0x2F,
WM_CHILDACTIVATE = 0x22,
WM_CLEAR = 0x303,
WM_CLOSE = 0x10,
WM_COMMAND = 0x111,
WM_COMPACTING = 0x41,
WM_COMPAREITEM = 0x39,
WM_CONTEXTMENU = 0x7B,
WM_COPY = 0x301,
WM_COPYDATA = 0x4A,
WM_CREATE = 0x1,
WM_CTLCOLORBTN = 0x135,
WM_CTLCOLORDLG = 0x136,
WM_CTLCOLOREDIT = 0x133,
WM_CTLCOLORLISTBOX = 0x134,
WM_CTLCOLORMSGBOX = 0x132,
WM_CTLCOLORSCROLLBAR = 0x137,
WM_CTLCOLORSTATIC = 0x138,
WM_CUT = 0x300,
WM_DEADCHAR = 0x103,
WM_DELETEITEM = 0x2D,
WM_DESTROY = 0x2,
WM_DESTROYCLIPBOARD = 0x307,
WM_DEVICECHANGE = 0x219,
WM_DEVMODECHANGE = 0x1B,
WM_DISPLAYCHANGE = 0x7E,
WM_DRAWCLIPBOARD = 0x308,
WM_DRAWITEM = 0x2B,
WM_DROPFILES = 0x233,
WM_ENABLE = 0xA,
WM_ENDSESSION = 0x16,
WM_ENTERIDLE = 0x121,
WM_ENTERMENULOOP = 0x211,
WM_ENTERSIZEMOVE = 0x231,
WM_ERASEBKGND = 0x14,
WM_EXITMENULOOP = 0x212,
WM_EXITSIZEMOVE = 0x232,
WM_FONTCHANGE = 0x1D,
WM_GETDLGCODE = 0x87,
WM_GETFONT = 0x31,
WM_GETHOTKEY = 0x33,
WM_GETICON = 0x7F,
WM_GETMINMAXINFO = 0x24,
WM_GETOBJECT = 0x3D,
WM_GETTEXT = 0xD,
WM_GETTEXTLENGTH = 0xE,
WM_HANDHELDFIRST = 0x358,
WM_HANDHELDLAST = 0x35F,
WM_HELP = 0x53,
WM_HOTKEY = 0x312,
WM_HSCROLL = 0x114,
WM_HSCROLLCLIPBOARD = 0x30E,
WM_ICONERASEBKGND = 0x27,
WM_IME_CHAR = 0x286,
WM_IME_COMPOSITION = 0x10F,
WM_IME_COMPOSITIONFULL = 0x284,
WM_IME_CONTROL = 0x283,
WM_IME_ENDCOMPOSITION = 0x10E,
WM_IME_KEYDOWN = 0x290,
WM_IME_KEYLAST = 0x10F,
WM_IME_KEYUP = 0x291,
WM_IME_NOTIFY = 0x282,
WM_IME_REQUEST = 0x288,
WM_IME_SELECT = 0x285,
WM_IME_SETCONTEXT = 0x281,
WM_IME_STARTCOMPOSITION = 0x10D,
WM_INITDIALOG = 0x110,
WM_INITMENU = 0x116,
WM_INITMENUPOPUP = 0x117,
WM_INPUTLANGCHANGE = 0x51,
WM_INPUTLANGCHANGEREQUEST = 0x50,
WM_KEYDOWN = 0x100,
WM_KEYFIRST = 0x100,
WM_KEYLAST = 0x108,
WM_KEYUP = 0x101,
WM_KILLFOCUS = 0x8,
WM_LBUTTONDBLCLK = 0x203,
WM_LBUTTONDOWN = 0x201,
WM_LBUTTONUP = 0x202,
WM_MBUTTONDBLCLK = 0x209,
WM_MBUTTONDOWN = 0x207,
WM_MBUTTONUP = 0x208,
WM_MDIACTIVATE = 0x222,
WM_MDICASCADE = 0x227,
WM_MDICREATE = 0x220,
WM_MDIDESTROY = 0x221,
WM_MDIGETACTIVE = 0x229,
WM_MDIICONARRANGE = 0x228,
WM_MDIMAXIMIZE = 0x225,
WM_MDINEXT = 0x224,
WM_MDIREFRESHMENU = 0x234,
WM_MDIRESTORE = 0x223,
WM_MDISETMENU = 0x230,
WM_MDITILE = 0x226,
WM_MEASUREITEM = 0x2C,
WM_MENUCHAR = 0x120,
WM_MENUCOMMAND = 0x126,
WM_MENUDRAG = 0x123,
WM_MENUGETOBJECT = 0x124,
WM_MENURBUTTONUP = 0x122,
WM_MENUSELECT = 0x11F,
WM_MOUSEACTIVATE = 0x21,
WM_MOUSEFIRST = 0x200,
WM_MOUSEHOVER = 0x2A1,
WM_MOUSELAST = 0x20A,
WM_MOUSELEAVE = 0x2A3,
WM_MOUSEMOVE = 0x200,
WM_MOUSEWHEEL = 0x20A,
WM_MOVE = 0x3,
WM_MOVING = 0x216,
WM_NCACTIVATE = 0x86,
WM_NCCALCSIZE = 0x83,
WM_NCCREATE = 0x81,
WM_NCDESTROY = 0x82,
WM_NCHITTEST = 0x84,
WM_NCLBUTTONDBLCLK = 0xA3,
WM_NCLBUTTONDOWN = 0xA1,
WM_NCLBUTTONUP = 0xA2,
WM_NCMBUTTONDBLCLK = 0xA9,
WM_NCMBUTTONDOWN = 0xA7,
WM_NCMBUTTONUP = 0xA8,
WM_NCMOUSEHOVER = 0x2A0,
WM_NCMOUSELEAVE = 0x2A2,
WM_NCMOUSEMOVE = 0xA0,
WM_NCPAINT = 0x85,
WM_NCRBUTTONDBLCLK = 0xA6,
WM_NCRBUTTONDOWN = 0xA4,
WM_NCRBUTTONUP = 0xA5,
WM_NEXTDLGCTL = 0x28,
WM_NEXTMENU = 0x213,
WM_NOTIFY = 0x4E,
WM_NOTIFYFORMAT = 0x55,
WM_NULL = 0x0,
WM_PAINT = 0xF,
WM_PAINTCLIPBOARD = 0x309,
WM_PAINTICON = 0x26,
WM_PALETTECHANGED = 0x311,
WM_PALETTEISCHANGING = 0x310,
WM_PARENTNOTIFY = 0x210,
WM_PASTE = 0x302,
WM_PENWINFIRST = 0x380,
WM_PENWINLAST = 0x38F,
WM_POWER = 0x48,
WM_PRINT = 0x317,
WM_PRINTCLIENT = 0x318,
WM_QUERYDRAGICON = 0x37,
WM_QUERYENDSESSION = 0x11,
WM_QUERYNEWPALETTE = 0x30F,
WM_QUERYOPEN = 0x13,
WM_QUEUESYNC = 0x23,
WM_QUIT = 0x12,
WM_RBUTTONDBLCLK = 0x206,
WM_RBUTTONDOWN = 0x204,
WM_RBUTTONUP = 0x205,
WM_RENDERALLFORMATS = 0x306,
WM_RENDERFORMAT = 0x305,
WM_SETCURSOR = 0x20,
WM_SETFOCUS = 0x7,
WM_SETFONT = 0x30,
WM_SETHOTKEY = 0x32,
WM_SETICON = 0x80,
WM_SETREDRAW = 0xB,
WM_SETTEXT = 0xC,
WM_SETTINGCHANGE = 0x1A,
WM_SHOWWINDOW = 0x18,
WM_SIZE = 0x5,
WM_SIZECLIPBOARD = 0x30B,
WM_SIZING = 0x214,
WM_SPOOLERSTATUS = 0x2A,
WM_STYLECHANGED = 0x7D,
WM_STYLECHANGING = 0x7C,
WM_SYNCPAINT = 0x88,
WM_SYSCHAR = 0x106,
WM_SYSCOLORCHANGE = 0x15,
WM_SYSCOMMAND = 0x112,
WM_SYSDEADCHAR = 0x107,
WM_SYSKEYDOWN = 0x104,
WM_SYSKEYUP = 0x105,
WM_TCARD = 0x52,
WM_TIMECHANGE = 0x1E,
WM_TIMER = 0x113,
WM_UNDO = 0x304,
WM_UNINITMENUPOPUP = 0x125,
WM_USER = 0x400,
WM_USERCHANGED = 0x54,
WM_VKEYTOITEM = 0x2E,
WM_VSCROLL = 0x115,
WM_VSCROLLCLIPBOARD = 0x30A,
WM_WINDOWPOSCHANGED = 0x47,
WM_WINDOWPOSCHANGING = 0x46,
WM_WININICHANGE = 0x1A



using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using Kits.Win32API;

namespace Kits.Hook

public class WinHook

private int _hookType = 0;
public int HookType get return this._hookType;

private HookProc _hookProc = null;
public HookProc HookProc get return this._hookProc;

private int _hHook = 0;
public int HHook get return this._hHook;

public WinHook(HookType type)
this._hookType = (int)type;


public bool SetWindowsHookEx(HookProc Proc)
bool Success = false;
if (this._hHook == 0)
this._hookProc = Proc;
_hHook = WinAPI.SetWindowsHookEx(this._hookType, this._hookProc, Process.GetCurrentProcess().MainModule.BaseAddress, 0);
if (this._hHook != 0)
Success = true;

return Success;


public bool UnhookWindowsHookEx()
bool Success = false;
if (this._hHook != 0)

Success = WinAPI.UnhookWindowsHookEx(this._hHook);

return Success;


参考技术A 关注

C#运行时鼠标移动控件 - 调用Windows API（ReleaseCapture）

        [System.Runtime.InteropServices.DllImport("user32.dll")]
        public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        public static extern bool ReleaseCapture();

        private void MoveControl(Control sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left && e.Clicks == 1)
            {
                ReleaseCapture();
                SendMessage(sender.Handle, 161, 2, 0);
                SendMessage(sender.Handle, 0x0202, 0, 0);
            }
            else
            {
                //添加双击或右击代码……
            }
        }

        private void button3_MouseDown(object sender, MouseEventArgs e)
        {
            MoveControl(sender as Control, e);
        }