WH_MOUSE_LL 全局钩子 与 标题栏按钮（最大化 最小化 关闭）的问题

Question

使用WH_MOUSE_LL后，点击标题栏的按钮，鼠标过好一阵子才能动，请问怎么解决？！
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;
using System.Diagnostics;namespace MouseLow
{
    public partial class Form1 : Form
    {
        [DllImport("User32.dll")]
        public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
        [DllImport("User32.dll")]
        public static extern bool UnhookWindowsHookEx(int idHook);
        [DllImport("User32.dll")]
        public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);
        [DllImport("kernel32.dll")]
        public static extern IntPtr GetModuleHandle(string lpModuleName);        private const int WH_KEYBOARD_LL = 13;
        private const int WH_MOUSE_LL = 14;
        public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);
        private static HookProc hookproc;
        int mHookM = 0;
        public Form1()
        {
            InitializeComponent();
        }        private void Form1_Load(object sender, EventArgs e)
        {
            hookproc = new HookProc(MouseHookProc);
            mHookM = SetWindowsHookEx(WH_MOUSE_LL, hookproc, GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName), 0);        }        public int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
        {            return CallNextHookEx(mHookM, nCode, wParam, lParam);
        }
    }
}