在C#中设置应用程序范围的热键

using System;
using System.Runtime.InteropServices;

public class HotKeyManager
{
    [DllImport("user32.dll")]
    private static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vk);

    [DllImport("user32.dll")]
    private static extern bool UnregisterHotKey(IntPtr hWnd, int id);

    private const int WM_HOTKEY = 0x0312;
    private IntPtr hWnd;
    private int currentId = 0;

    public HotKeyManager(IntPtr hWnd)
    {
        this.hWnd = hWnd;
    }

    public bool RegisterHotKey(ModifierKeys modifier, Keys key)
    {
        int id = currentId++;
        return RegisterHotKey(hWnd, id, (int)modifier, (int)key);
    }

    public bool UnregisterHotKey()
    {
        return UnregisterHotKey(hWnd, currentId - 1);
    }

    public event EventHandler<HotKeyEventArgs> HotKeyPressed;

    protected virtual void OnHotKeyPressed(HotKeyEventArgs e)
    {
        HotKeyPressed?.Invoke(this, e);
    }

    public void ProcessHotKeyMessage(Message m)
    {
        if (m.Msg == WM_HOTKEY)
        {
            int id = m.WParam.ToInt32();
            OnHotKeyPressed(new HotKeyEventArgs(id));
        }
    }
}

public enum ModifierKeys
{
    None = 0,
    Alt = 1,
    Control = 2,
    Shift = 4,
    Win = 8
}

public enum Keys
{
    None = 0,
    A = 65,
    B = 66,
    C = 67,
    // ... 其他按键
}

public class HotKeyEventArgs : EventArgs
{
    public int Id { get; private set; }

    public HotKeyEventArgs(int id)
    {
        Id = id;
    }
}

using System;
using System.Windows.Forms;

public class Program
{
    private static HotKeyManager hotKeyManager;

    public static void Main()
    {
        hotKeyManager = new HotKeyManager(Process.GetCurrentProcess().MainWindowHandle);
        hotKeyManager.HotKeyPressed += HotKeyManager_HotKeyPressed;

        // 注册热键，使用Ctrl+Alt+A作为示例
        hotKeyManager.RegisterHotKey(ModifierKeys.Control | ModifierKeys.Alt, Keys.A);

        Application.Run();
    }

    private static void HotKeyManager_HotKeyPressed(object sender, HotKeyEventArgs e)
    {
        // 在这里处理热键被触发时的逻辑
        Console.WriteLine("热键被触发！");
    }
}