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我目前正在为我的应用程序创建一个 AFKChecker。问题是没有调用低级鼠标钩子。我检查了它是否返回 0，但它没有。所以键盘挂钩有效，但鼠标挂钩无效。我已经google了，但我仍然没有找到解决我的问题的方法。

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;

namespace AFKChecker
{
    public static class ActivityChecker
    {
        public static Int64 LastKeypress = 0;
        public static int AFKTime = 300;

        private const int WH_KEYBOARD_LL = 13;
        public const int WH_MOUSE_LL = 14;
        private static HookProc _keyproc = HookCallback;
        private static IntPtr _keyhookID = IntPtr.Zero;
        private static HookProc _mouseproc = HookCallback;
        private static IntPtr _mousehookID = IntPtr.Zero;

        public static void AddHook()
        {
            LastKeypress = Tools.UnixTime();
            _keyhookID = SetKeyboardHook(_keyproc);
            _mousehookID = SetKeyboardHook(_mouseproc);
        }

        private static IntPtr HookCallback(
        int nCode, IntPtr wParam, IntPtr lParam)
        {
            LastKeypress = Tools.UnixTime();
            return CallNextHookEx(_keyhookID, nCode, wParam, lParam);
        }

        public static void RemoveHook()
        {
            UnhookWindowsHookEx(_keyhookID);
            UnhookWindowsHookEx(_mousehookID);
        }

        public static Boolean IsAFK()
        {
            return (LastKeypress + AFKTime > Tools.UnixTime());
        }

        private static IntPtr SetKeyboardHook(HookProc proc)
        {
            using (Process curProcess = Process.GetCurrentProcess())
            using (ProcessModule curModule = curProcess.MainModule)
            {
                return SetWindowsHookEx(WH_KEYBOARD_LL, proc,
                    GetModuleHandle(curModule.ModuleName), 0);
            }
        }

        private static IntPtr SetMouseHook(HookProc proc)
        {
            using (Process curProcess = Process.GetCurrentProcess())
            using (ProcessModule curModule = curProcess.MainModule)
            {
                return SetWindowsHookEx(WH_MOUSE_LL, proc,
                    GetModuleHandle(curModule.ModuleName), 0);
            }
        }

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

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr SetWindowsHookEx(int idHook,
            HookProc lpfn, IntPtr hMod, uint dwThreadId);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool UnhookWindowsHookEx(IntPtr hhk);

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode,
            IntPtr wParam, IntPtr lParam);

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

最好的祝福

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2 回答 2

2

安装鼠标/键盘挂钩只是为了找到用户的空闲时间，这在我看来是概念上的错误。如果 Windows 不提供任何更好的 API，这应该是最后的手段。

快速搜索会发现为此目的设计的GetLastInputInfo API。还有一篇描述如何在 C# 中执行此操作的代码项目文章：Getting the user idle time with C#

于 2011-08-06T09:10:56.993 回答
1

好像你没有打电话SetMouseHook，重新检查你的AddHook()功能：

    public static void AddHook()
    {
        LastKeypress = Tools.UnixTime();
        _keyhookID = SetKeyboardHook(_keyproc);
        _mousehookID = SetKeyboardHook(_mouseproc); // SetMouseHook() here?
    }
于 2011-08-06T09:04:47.697 回答