在winform中设置快捷键

        #region 快捷键设置
        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool RegisterHotKey(
            IntPtr hWnd, // handle to window   
            int id, // hot key identifier   
            KeyModifiers fsModifiers, // key-modifier options   
            Keys vk // virtual-key code   
            );
        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool UnregisterHotKey(
                IntPtr hWnd, // handle to window   
                int id // hot key identifier   
            );
        [Flags()]
        public enum KeyModifiers
        {
            None = 0,
            Alt = 1,
            Control = 2,
            Shift = 4,
            Windows = 8
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            UnregisterHotKey(Handle, 100);//卸载快捷键  
            //注销Id号为101的热键设定
            UnregisterHotKey(Handle, 101);

        }
        protected override void WndProc(ref Message m)//监视Windows消息 
        {
            const int WM_HOTKEY = 0x0312;//按快捷键  
            switch (m.Msg)
            {
                case WM_HOTKEY:
                    switch (m.WParam.ToInt32())
                    {
                        case 100:    //按下的是Left
                            ProcessHotkeyLeft(); //此处填写快捷键响应代码         
                            break;
                        case 101:    //按下的是Right
                            ProcessHotkeyRight(); //此处填写快捷键响应代码
                            break;
                        case 102:    //按下的是Up
                            ProcessHotkeyUp(); //此处填写快捷键响应代码
                            break;
                        case 103:    //按下的是Up
                            ProcessHotkeyDown(); //此处填写快捷键响应代码
                            break;
                    }
                    break;

            }
            base.WndProc(ref m);
        }
        void ProcessHotkeyLeft()
        {
        }
        void ProcessHotkeyRight()
        {
        }
        void ProcessHotkeyUp()
        { 
        }
        void ProcessHotkeyDown()
        { 
        }
        #endregion

在窗体Load时注册快捷键

            //设置快捷键
            Clipboard.Clear();//先清空剪贴板防止剪贴板里面先复制了其他内容  
            RegisterHotKey(Handle, 100, 0, Keys.Left);
            RegisterHotKey(Handle, 101, 0, Keys.Right);
            RegisterHotKey(Handle, 102, 0, Keys.Up);
            RegisterHotKey(Handle, 103, 0, Keys.Down);
            RegisterHotKey(Handle, 109, KeyModifiers.Shift, Keys.S);//注册Shift+S快捷键