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    Исходники по языку программирования CSharp

    Блокировка кнопки Пуск(win): Справочник по C#

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    using System;
    using System.Diagnostics;
    using System.Windows.Forms;
    using System.Runtime.InteropServices;
    
    class TEST
    {
    private const int WH_KEYBOARD_LL = 13;
    private const int WM_KEYDOWN = 0x0100;
    private static LowLevelKeyboardProc _proc = HookCallback;
    private static IntPtr _hookID = IntPtr.Zero;
    
    public static void Main()
    {
    _hookID = SetHook(_proc);
    Application.Run();
    UnhookWindowsHookEx(_hookID);
    }
    
    private static IntPtr SetHook(LowLevelKeyboardProc proc)
    {
    using (Process curProcess = Process.GetCurrentProcess())
    using (ProcessModule curModule = curProcess.MainModule)
    {
    return SetWindowsHookEx(WH_KEYBOARD_LL, proc, GetModuleHandle(curModule.ModuleName), 0);
    }
    }
    
    private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
    
    private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
    {
    if ( (nCode >= 0) && (wParam == (IntPtr)WM_KEYDOWN) )
    {
    int vkCode = Marshal.ReadInt32(lParam);
    if( ((Keys)vkCode == Keys.LWin)||((Keys)vkCode == Keys.RWin)) // замени win на шифт и будет тебе счастье
    {
    Console.WriteLine("{0} blocked!", (Keys)vkCode);
    return (IntPtr)1;
    }
    }
    return CallNextHookEx(_hookID, nCode, wParam, lParam);
    }
    
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);
    
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    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);
    }

    Блокировка кнопки Пуск(win): Справочник по C#

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