System Hooks

[Mague]

hey i need help with system hooks. I need it so when mi program is minimized i can press Ctrl R and it will start a script in the program then ctrl s will stop it.

Thank you in advance
Mague

[kenobewan]

Here is an article that may help:
Global System Hooks in .NET

[Atran]

hey i need help with system hooks. I need it so when mi program is minimized i can press Ctrl R and it will start a script in the program then ctrl s will stop it.

Thank you in advance
Mague

[Read Very Carefully]
Hello, So you mean to create an hotkey ???
If you want to press Ctrl + R, and your program is minizimed, so Ctrl+R is an hotkey for your program.
------------------------------------
To begin, create a new solution (Windows Application).
I call the solution " HotkeyNameSpace " .
[Do not change your form name After creating the solution.]
[And Save your solution before starting].
------------------------------------------------------------
After you create the solution: go to " Solution Explorer ", and add to your PROJECT (NOT SOLUTION) a new item (Make the new item: A CODE FILE), and make the CODE FILE's name " Hotkey.cs ".
And add another code-file to your project,make its name " SystemHotkey.cs ".
--------------------------------------------------------------------------------------------------------------------
Now [From the Solution Explorer] open Hotkey.cs, After you open it: you see an empty page [empty page code].
And copy this code to the empty page (Hotkey.cs page):

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
 
namespace Hotkey.Win32
{
    /// <summary>
    /// Summary description for Win32.
    /// </summary>
    public class User32
    {
        [DllImport("user32.dll")]
        public static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vlc);
        [DllImport("user32.dll")]
        public static extern bool UnregisterHotKey(IntPtr hWnd, int id);
    }
 
    public class Kernel32
    {
        [DllImport("kernel32.dll")]
        public static extern int GlobalAddAtom(string Name);
        [DllImport("kernel32.dll")]
        public static extern int GlobalDeleteAtom(int atom);
        [DllImport("kernel32.dll")]
        public static extern IntPtr GlobalLock(IntPtr hMem);
        [DllImport("kernel32.dll")]
        public static extern bool GlobalUnlock(IntPtr hMem);
    }
 
    public enum Modifiers { MOD_ALT = 0x0001, MOD_CONTROL = 0x0002, MOD_SHIFT = 0x0004, MOD_WIN = 0x0008 }
    public enum Msgs
    {
        WM_NULL = 0x0000,
        WM_CREATE = 0x0001,
        WM_DESTROY = 0x0002,
        WM_MOVE = 0x0003,
        WM_SIZE = 0x0005,
        WM_ACTIVATE = 0x0006,
        WM_SETFOCUS = 0x0007,
        WM_KILLFOCUS = 0x0008,
        WM_ENABLE = 0x000A,
        WM_SETREDRAW = 0x000B,
        WM_SETTEXT = 0x000C,
        WM_GETTEXT = 0x000D,
        WM_GETTEXTLENGTH = 0x000E,
        WM_PAINT = 0x000F,
        WM_CLOSE = 0x0010,
        WM_QUERYENDSESSION = 0x0011,
        WM_QUIT = 0x0012,
        WM_QUERYOPEN = 0x0013,
        WM_ERASEBKGND = 0x0014,
        WM_SYSCOLORCHANGE = 0x0015,
        WM_ENDSESSION = 0x0016,
        WM_SHOWWINDOW = 0x0018,
        WM_WININICHANGE = 0x001A,
        WM_SETTINGCHANGE = 0x001A,
        WM_DEVMODECHANGE = 0x001B,
        WM_ACTIVATEAPP = 0x001C,
        WM_FONTCHANGE = 0x001D,
        WM_TIMECHANGE = 0x001E,
        WM_CANCELMODE = 0x001F,
        WM_SETCURSOR = 0x0020,
        WM_MOUSEACTIVATE = 0x0021,
        WM_CHILDACTIVATE = 0x0022,
        WM_QUEUESYNC = 0x0023,
        WM_GETMINMAXINFO = 0x0024,
        WM_PAINTICON = 0x0026,
        WM_ICONERASEBKGND = 0x0027,
        WM_NEXTDLGCTL = 0x0028,
        WM_SPOOLERSTATUS = 0x002A,
        WM_DRAWITEM = 0x002B,
        WM_MEASUREITEM = 0x002C,
        WM_DELETEITEM = 0x002D,
        WM_VKEYTOITEM = 0x002E,
        WM_CHARTOITEM = 0x002F,
        WM_SETFONT = 0x0030,
        WM_GETFONT = 0x0031,
        WM_SETHOTKEY = 0x0032,
        WM_GETHOTKEY = 0x0033,
        WM_QUERYDRAGICON = 0x0037,
        WM_COMPAREITEM = 0x0039,
        WM_GETOBJECT = 0x003D,
        WM_COMPACTING = 0x0041,
        WM_COMMNOTIFY = 0x0044,
        WM_WINDOWPOSCHANGING = 0x0046,
        WM_WINDOWPOSCHANGED = 0x0047,
        WM_POWER = 0x0048,
        WM_COPYDATA = 0x004A,
        WM_CANCELJOURNAL = 0x004B,
        WM_NOTIFY = 0x004E,
        WM_INPUTLANGCHANGEREQUEST = 0x0050,
        WM_INPUTLANGCHANGE = 0x0051,
        WM_TCARD = 0x0052,
        WM_HELP = 0x0053,
        WM_USERCHANGED = 0x0054,
        WM_NOTIFYFORMAT = 0x0055,
        WM_CONTEXTMENU = 0x007B,
        WM_STYLECHANGING = 0x007C,
        WM_STYLECHANGED = 0x007D,
        WM_DISPLAYCHANGE = 0x007E,
        WM_GETICON = 0x007F,
        WM_SETICON = 0x0080,
        WM_NCCREATE = 0x0081,
        WM_NCDESTROY = 0x0082,
        WM_NCCALCSIZE = 0x0083,
        WM_NCHITTEST = 0x0084,
        WM_NCPAINT = 0x0085,
        WM_NCACTIVATE = 0x0086,
        WM_GETDLGCODE = 0x0087,
        WM_SYNCPAINT = 0x0088,
        WM_NCMOUSEMOVE = 0x00A0,
        WM_NCLBUTTONDOWN = 0x00A1,
        WM_NCLBUTTONUP = 0x00A2,
        WM_NCLBUTTONDBLCLK = 0x00A3,
        WM_NCRBUTTONDOWN = 0x00A4,
        WM_NCRBUTTONUP = 0x00A5,
        WM_NCRBUTTONDBLCLK = 0x00A6,
        WM_NCMBUTTONDOWN = 0x00A7,
        WM_NCMBUTTONUP = 0x00A8,
        WM_NCMBUTTONDBLCLK = 0x00A9,
        WM_KEYDOWN = 0x0100,
        WM_KEYUP = 0x0101,
        WM_CHAR = 0x0102,
        WM_DEADCHAR = 0x0103,
        WM_SYSKEYDOWN = 0x0104,
        WM_SYSKEYUP = 0x0105,
        WM_SYSCHAR = 0x0106,
        WM_SYSDEADCHAR = 0x0107,
        WM_KEYLAST = 0x0108,
        WM_IME_STARTCOMPOSITION = 0x010D,
        WM_IME_ENDCOMPOSITION = 0x010E,
        WM_IME_COMPOSITION = 0x010F,
        WM_IME_KEYLAST = 0x010F,
        WM_INITDIALOG = 0x0110,
        WM_COMMAND = 0x0111,
        WM_SYSCOMMAND = 0x0112,
        WM_TIMER = 0x0113,
        WM_HSCROLL = 0x0114,
        WM_VSCROLL = 0x0115,
        WM_INITMENU = 0x0116,
        WM_INITMENUPOPUP = 0x0117,
        WM_MENUSELECT = 0x011F,
        WM_MENUCHAR = 0x0120,
        WM_ENTERIDLE = 0x0121,
        WM_MENURBUTTONUP = 0x0122,
        WM_MENUDRAG = 0x0123,
        WM_MENUGETOBJECT = 0x0124,
        WM_UNINITMENUPOPUP = 0x0125,
        WM_MENUCOMMAND = 0x0126,
        WM_CTLCOLORMSGBOX = 0x0132,
        WM_CTLCOLOREDIT = 0x0133,
        WM_CTLCOLORLISTBOX = 0x0134,
        WM_CTLCOLORBTN = 0x0135,
        WM_CTLCOLORDLG = 0x0136,
        WM_CTLCOLORSCROLLBAR = 0x0137,
        WM_CTLCOLORSTATIC = 0x0138,
        WM_MOUSEMOVE = 0x0200,
        WM_LBUTTONDOWN = 0x0201,
        WM_LBUTTONUP = 0x0202,
        WM_LBUTTONDBLCLK = 0x0203,
        WM_RBUTTONDOWN = 0x0204,
        WM_RBUTTONUP = 0x0205,
        WM_RBUTTONDBLCLK = 0x0206,
        WM_MBUTTONDOWN = 0x0207,
        WM_MBUTTONUP = 0x0208,
        WM_MBUTTONDBLCLK = 0x0209,
        WM_MOUSEWHEEL = 0x020A,
        WM_PARENTNOTIFY = 0x0210,
        WM_ENTERMENULOOP = 0x0211,
        WM_EXITMENULOOP = 0x0212,
        WM_NEXTMENU = 0x0213,
        WM_SIZING = 0x0214,
        WM_CAPTURECHANGED = 0x0215,
        WM_MOVING = 0x0216,
        WM_DEVICECHANGE = 0x0219,
        WM_MDICREATE = 0x0220,
        WM_MDIDESTROY = 0x0221,
        WM_MDIACTIVATE = 0x0222,
        WM_MDIRESTORE = 0x0223,
        WM_MDINEXT = 0x0224,
        WM_MDIMAXIMIZE = 0x0225,
        WM_MDITILE = 0x0226,
        WM_MDICASCADE = 0x0227,
        WM_MDIICONARRANGE = 0x0228,
        WM_MDIGETACTIVE = 0x0229,
        WM_MDISETMENU = 0x0230,
        WM_ENTERSIZEMOVE = 0x0231,
        WM_EXITSIZEMOVE = 0x0232,
        WM_DROPFILES = 0x0233,
        WM_MDIREFRESHMENU = 0x0234,
        WM_IME_SETCONTEXT = 0x0281,
        WM_IME_NOTIFY = 0x0282,
        WM_IME_CONTROL = 0x0283,
        WM_IME_COMPOSITIONFULL = 0x0284,
        WM_IME_SELECT = 0x0285,
        WM_IME_CHAR = 0x0286,
        WM_IME_REQUEST = 0x0288,
        WM_IME_KEYDOWN = 0x0290,
        WM_IME_KEYUP = 0x0291,
        WM_MOUSEHOVER = 0x02A1,
        WM_MOUSELEAVE = 0x02A3,
        WM_CUT = 0x0300,
        WM_COPY = 0x0301,
        WM_PASTE = 0x0302,
        WM_CLEAR = 0x0303,
        WM_UNDO = 0x0304,
        WM_RENDERFORMAT = 0x0305,
        WM_RENDERALLFORMATS = 0x0306,
        WM_DESTROYCLIPBOARD = 0x0307,
        WM_DRAWCLIPBOARD = 0x0308,
        WM_PAINTCLIPBOARD = 0x0309,
        WM_VSCROLLCLIPBOARD = 0x030A,
        WM_SIZECLIPBOARD = 0x030B,
        WM_ASKCBFORMATNAME = 0x030C,
        WM_CHANGECBCHAIN = 0x030D,
        WM_HSCROLLCLIPBOARD = 0x030E,
        WM_QUERYNEWPALETTE = 0x030F,
        WM_PALETTEISCHANGING = 0x0310,
        WM_PALETTECHANGED = 0x0311,
        WM_HOTKEY = 0x0312,
        WM_PRINT = 0x0317,
        WM_PRINTCLIENT = 0x0318,
        WM_HANDHELDFIRST = 0x0358,
        WM_HANDHELDLAST = 0x035F,
        WM_AFXFIRST = 0x0360,
        WM_AFXLAST = 0x037F,
        WM_PENWINFIRST = 0x0380,
        WM_PENWINLAST = 0x038F,
        WM_APP = 0x8000,
        WM_USER = 0x0400,
        WM_DDE_INITIATE = 0x03E0,
        WM_DDE_TERMINATE,
        WM_DDE_ADVISE,
        WM_DDE_UNADVISE,
        WM_DDE_ACK,
        WM_DDE_DATA,
        WM_DDE_REQUEST,
        WM_DDE_POKE,
        WM_DDE_EXECUTE
    }
 
 
    /// <summary>
    /// Defines a delegate for Message handling
    /// </summary>
    public delegate void MessageEventHandler(object Sender, ref Message msg, ref bool Handled);
 
    /// <summary>
    /// Inherits from System.Windows.Form.NativeWindow. Provides an Event for Message handling
    /// </summary>
    public class NativeWindowWithEvent : System.Windows.Forms.NativeWindow
    {
        public event MessageEventHandler ProcessMessage;
        protected override void WndProc(ref Message m)
        {
            if (ProcessMessage != null)
            {
                bool Handled = false;
                ProcessMessage(this, ref m, ref Handled);
                if (!Handled) base.WndProc(ref m);
            }
            else base.WndProc(ref m);
        }
    }
 
    /// <summary>
    /// Inherits from NativeWindowWithEvent and automatic creates/destroys of a dummy window
    /// </summary>
    public class DummyWindowWithEvent : NativeWindowWithEvent, IDisposable
    {
        public DummyWindowWithEvent()
        {
            CreateParams parms = new CreateParams();
            this.CreateHandle(parms);
        }
        public void Dispose()
        {
            if (this.Handle != (IntPtr)0)
            {
                this.DestroyHandle();
            }
        }
    }
}
 
 

then Save your project.
----------------------------------
Now [from the Solution Explorer] open SystemHotkey.cs.
You also can see an empty page (SystemHotkey.cs page is empty).
Copy this code to the SystemHotkey.cs page:

using System;
using System.ComponentModel;
using System.Collections;
using System.Diagnostics;
using System.Windows.Forms;
using Hotkey.Win32;
 
namespace Hotkey.SystemHotkey
{
    /// <summary>
    /// Handles a System Hotkey
    /// </summary>
    public class SystemHotkey : System.ComponentModel.Component, IDisposable
    {
        private System.ComponentModel.Container components = null;
        protected DummyWindowWithEvent m_Window = new DummyWindowWithEvent();    //window for WM_Hotkey Messages
        protected Shortcut m_HotKey = Shortcut.None;
        protected bool isRegistered = false;
        public event System.EventHandler Pressed;
        public event System.EventHandler Error;
 
        public SystemHotkey(System.ComponentModel.IContainer container)
        {
            container.Add(this);
            InitializeComponent();
            m_Window.ProcessMessage += new MessageEventHandler(MessageEvent);
        }
 
        public SystemHotkey()
        {
            InitializeComponent();
            if (!DesignMode)
            {
                m_Window.ProcessMessage += new MessageEventHandler(MessageEvent);
            }
        }
 
        public new void Dispose()
        {
            if (isRegistered)
            {
                if (UnregisterHotkey())
                    System.Diagnostics.Debug.WriteLine("Unreg: OK");
            }
            System.Diagnostics.Debug.WriteLine("Disposed");
        }
        #region Component Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            components = new System.ComponentModel.Container();
        }
        #endregion
 
        protected void MessageEvent(object sender, ref Message m, ref bool Handled)
        {    //Handle WM_Hotkey event
            if ((m.Msg == (int)Win32.Msgs.WM_HOTKEY) && (m.WParam == (IntPtr)this.GetType().GetHashCode()))
            {
                Handled = true;
                System.Diagnostics.Debug.WriteLine("HOTKEY pressed!");
                if (Pressed != null) Pressed(this, EventArgs.Empty);
            }
        }
 
        protected bool UnregisterHotkey()
        {    //unregister hotkey
            return Win32.User32.UnregisterHotKey(m_Window.Handle, this.GetType().GetHashCode());
        }
 
        protected bool RegisterHotkey(Shortcut key)
        {    //register hotkey
            int mod = 0;
            Keys k2 = Keys.None;
            if (((int)key & (int)Keys.Alt) == (int)Keys.Alt) { mod += (int)Win32.Modifiers.MOD_ALT; k2 = Keys.Alt; }
            if (((int)key & (int)Keys.Shift) == (int)Keys.Shift) { mod += (int)Win32.Modifiers.MOD_SHIFT; k2 = Keys.Shift; }
            if (((int)key & (int)Keys.Control) == (int)Keys.Control) { mod += (int)Win32.Modifiers.MOD_CONTROL; k2 = Keys.Control; }
 
            System.Diagnostics.Debug.Write(mod.ToString() + " ");
            System.Diagnostics.Debug.WriteLine((((int)key) - ((int)k2)).ToString());
 
            return Win32.User32.RegisterHotKey(m_Window.Handle, this.GetType().GetHashCode(), (int)mod, ((int)key) - ((int)k2));
        }
 
        public bool IsRegistered
        {
            get { return isRegistered; }
        }
 
 
        [DefaultValue(Shortcut.None)]
        public Shortcut Shortcut
        {
            get { return m_HotKey; }
            set
            {
                if (DesignMode) { m_HotKey = value; return; }    //Don't register in Designmode
                if ((isRegistered) && (m_HotKey != value))    //Unregister previous registered Hotkey
                {
                    if (UnregisterHotkey())
                    {
                        System.Diagnostics.Debug.WriteLine("Unreg: OK");
                        isRegistered = false;
                    }
                    else
                    {
                        if (Error != null) Error(this, EventArgs.Empty);
                        System.Diagnostics.Debug.WriteLine("Unreg: ERR");
                    }
                }
                if (value == Shortcut.None) { m_HotKey = value; return; }
                if (RegisterHotkey(value))    //Register new Hotkey
                {
                    System.Diagnostics.Debug.WriteLine("Reg: OK");
                    isRegistered = true;
                }
                else
                {
                    if (Error != null) Error(this, EventArgs.Empty);
                    System.Diagnostics.Debug.WriteLine("Reg: ERR");
                }
                m_HotKey = value;
            }
        }
    }
}
 
 

Save your project.
--------------------------
Now delete Program.cs from the solution explorer.
-------------------------------------------------------------------------
And open Form1.cs [From the design mode, View the Form1 Code].
And clear all Form1.cs code, and add this code to the Form1.cs:
[Wirte the code to Form1.cs]:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
namespace HotkeyNameSpace
{
    public partial class Form1 : Form
    {
        private System.Windows.Forms.Label label1;
        //Making a new Hotkey.....
        private Hotkey.SystemHotkey.SystemHotkey systemHotkey1;
        private System.Windows.Forms.Label label2;
        private System.ComponentModel.IContainer components;
 
        public Form1()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
 
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
 
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
 
        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.systemHotkey1 = new Hotkey.SystemHotkey.SystemHotkey(this.components);
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // systemHotkey1
            // 
            this.systemHotkey1.Shortcut = System.Windows.Forms.Shortcut.CtrlR; //Here make your own Hotkey.
            this.systemHotkey1.Pressed += new System.EventHandler(this.systemHotkey1_Pressed);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(64, 16);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(280, 96);
            this.label1.TabIndex = 0;
            this.label1.Text = "Waiting for events";
            // 
            // label2
            // 
            this.label2.Location = new System.Drawing.Point(72, 184);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(240, 72);
            this.label2.TabIndex = 1;
            this.label2.Text = "Use the SystemHotkey Component in Windows Forms designer to modify the Hotkey. Pr" +
                "ess Ctrl+R to fire the Hotkey event";
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(400, 286);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
 
        }
        #endregion
 
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
 
        private void systemHotkey1_Pressed(object sender, System.EventArgs e)
        {
            label1.Text = "Hotkey Pressed!";
            MessageBox.Show("Hotkey pressed...", "Attention", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            this.Activate();
            this.BringToFront();
        }
    }
}
 
 

-------------
You can see from [the solution explorer] the Form1 icon, at the left of the icon: you can see a Plus Sign, click on the plus sign: you see the Form1 has two files [The first is Form1.Designer.cs, the second is Form1.resx].
So delete the Form1.Designer.cs.
--------------------------------------------------
And run your application (When the application running press Ctrl+R).
If you want to change the hotkey (or make another), you can see in Form1.cs.
Do not edit Hotkey.cs and SystemHotkey.cs.
Goodbye.

[Mague]

Hey how do u say if systemhotkey = Ctrl r or wat do i do

[Atran]

Hey how do u say if systemhotkey = Ctrl r or wat do i do

Hello, in the Form1.cs, read line 61.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
namespace HotkeyNameSpace
{
    public partial class Form1 : Form
    {
        private System.Windows.Forms.Label label1;
        //Making a new Hotkey.....
        private Hotkey.SystemHotkey.SystemHotkey systemHotkey1;
        private System.Windows.Forms.Label label2;
        private System.ComponentModel.IContainer components;
 
        public Form1()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
 
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
 
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
 
        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.systemHotkey1 = new Hotkey.SystemHotkey.SystemHotkey(this.components);  
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // systemHotkey1
            // 
            this.systemHotkey1.Shortcut = System.Windows.Forms.Shortcut.CtrlR; //Here make your own Hotkey.
            this.systemHotkey1.Pressed += new System.EventHandler(this.systemHotkey1_Pressed);
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(64, 16);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(280, 96);
            this.label1.TabIndex = 0;
            this.label1.Text = "Waiting for events";
            // 
            // label2
            // 
            this.label2.Location = new System.Drawing.Point(72, 184);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(240, 72);
            this.label2.TabIndex = 1;
            this.label2.Text = "Use the SystemHotkey Component in Windows Forms designer to modify the Hotkey. Pr" +
                "ess Ctrl+R to fire the Hotkey event";
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(400, 286);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.label1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
 
        }
        #endregion
 
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(fals  e);
            Application.Run(new Form1());
        }
 
        private void systemHotkey1_Pressed(object sender, System.EventArgs e)
        {
            label1.Text = "Hotkey Pressed!";
            MessageBox.Show("Hotkey pressed...", "Attention", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            this.Activate();
            this.BringToFront();
        }
    }
}
 

We can say: [Express Way]

this.components = new System.ComponentModel.Container();
//Make a new hotkey.
this.systemHotkey1 = new Hotkey.SystemHotkey.SystemHotkey(this.components);
//Make a key to the hotkey.
this.systemHotkey1.Shortcut = System.Windows.Forms.Shortcut.CtrlR; //Here make your own Hotkey.
//Make an pressing event handler.
this.systemHotkey1.Pressed += new System.EventHandler(this.systemHotkey1_Pressed);
 

And:

//If the hotkey pressed, do an action.
private void systemHotkey1_Pressed(object sender, System.EventArgs e)
        {
            label1.Text = "Hotkey Pressed!";
            MessageBox.Show("Hotkey pressed...", "Attention", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            this.Activate();
            this.BringToFront();
        }
 

Hope this help you.