有没有办法在本地而不是全局地执行lowlevelkeyboardproc或lowlevelmouseproc?

时间:2019-02-09 01:20:13

标签: c# windows

我在遇到某些问题时遇到了麻烦。我一直在禁用特定应用程序的左右鼠标单击,而我的C#代码如下所示...

我的问题是,即使此功能可以在较低级别禁用鼠标,但是否没有办法在仅针对应用程序集中运行时才能在较低级别禁用鼠标呢?

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

namespace GlobalLowLevelHooks
{
    public class MouseHook
    {

        public bool enabled = false;

        public delegate IntPtr MouseHookHandler(int nCode, IntPtr wParam, IntPtr lParam);
        public MouseHookHandler hookHandler;

        public delegate void MouseHookCallback(MSLLHOOKSTRUCT mouseStruct);

        #region Events
        public event MouseHookCallback LeftButtonDown;
        public event MouseHookCallback LeftButtonUp;
        public event MouseHookCallback RightButtonDown;
        public event MouseHookCallback RightButtonUp;
        public event MouseHookCallback MouseMove;
        public event MouseHookCallback MouseWheel;
        public event MouseHookCallback DoubleClick;
        public event MouseHookCallback MiddleButtonDown;
        public event MouseHookCallback MiddleButtonUp;
        #endregion

        public IntPtr hookID = IntPtr.Zero;
        public void Enable()
        {
            hookHandler = HookFunc;
            hookID = SetHook(hookHandler);
            enabled = true;
        }
        public void Disable()
        {
            if (hookID == IntPtr.Zero)
                return;

            UnhookWindowsHookEx(hookID);
            hookID = IntPtr.Zero;
            enabled = false;
        }
        ~MouseHook()
        {
            Enable();
        }
        private IntPtr SetHook(MouseHookHandler proc)
        {
            using (ProcessModule module = Process.GetCurrentProcess().MainModule)
                return SetWindowsHookEx(WH_MOUSE_LL, proc, GetModuleHandle(module.ModuleName), 0);
        }

        private IntPtr HookFunc(int nCode, IntPtr wParam, IntPtr lParam)
        {
            // parse system messages
            if (nCode >= 0)
            {
                if (MouseMessages.WM_LBUTTONDOWN == (MouseMessages)wParam)
                {
                    return (IntPtr)1;
                }
                if (MouseMessages.WM_RBUTTONDOWN == (MouseMessages)wParam)
                {
                    return (IntPtr)1;
                }
                if (MouseMessages.WM_MBUTTONDOWN == (MouseMessages)wParam)
                {
                    return (IntPtr)1;
                }
                if (MouseMessages.WM_LBUTTONDBLCLK == (MouseMessages)wParam)
                {
                    return (IntPtr)1;
                }

            }
            return CallNextHookEx(hookID, nCode, wParam, lParam);
        }

        #region WinAPI
        private const int WH_MOUSE_LL = 14;

        private enum MouseMessages
        {
            WM_LBUTTONDOWN = 0x0201,
            WM_LBUTTONUP = 0x0202,
            WM_MOUSEMOVE = 0x0200,
            WM_MOUSEWHEEL = 0x020A,
            WM_RBUTTONDOWN = 0x0204,
            WM_RBUTTONUP = 0x0205,
            WM_LBUTTONDBLCLK = 0x0203,
            WM_MBUTTONDOWN = 0x0207,
            WM_MBUTTONUP = 0x0208
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct POINT
        {
            public int x;
            public int y;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct MSLLHOOKSTRUCT
        {
            public POINT pt;
            public uint mouseData;
            public uint flags;
            public uint time;
            public IntPtr dwExtraInfo;
        }

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

        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        public 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);
        #endregion
    }
}

0 个答案:

没有答案