KeyEventArgs.Modifier到int32

Question

我正在做一个程序，有用户可定制的热键，我有几乎所有的工作，除了一个小问题，转换修改键为int32使用gethashcode()

private void hotBox1_KeyDown(object sender, KeyEventArgs e)
{
    string _senderName = ((TextBox)sender).Name;
    int _sender_id = Convert.ToInt32(_senderName.Split(new[] { "hotBox" },
                                     StringSplitOptions.None)[1]) - 1;

    Keys modifierKeys = e.Modifiers;
    Keys pressedKey = e.KeyData ^ modifierKeys;

    /*
     * have to convert e.modifiers to 1/2/4/etc it's throwing errors when 
     * trying to register a new hotkey because it doesn't know what 131072 is
     */

    /*
     * OKAY so I rigged a bunch of stuff here I don't know why GetHashCode returns 
     * 131072 (20000 hex) for shift instead of 0x2 (2 dec) which is the hex code for 
     * shift modifier ???
     * Anyway I'm using the fixed values for detecting if shift/ctrl/alt or any 
     * combination is pressed to not block hotkey from blacklist with use of modifier
     * I'm not very knowledgeable with that sort of stuff so feel free to edit to 
     * make more efficient
     */

    Int32[] Modifiers = { 131072, 65536, 262144 }; //Control, Alt, Shift

    /*
     * BLACKLIST: ctrl+pgdn, ctrl+pgup, caps lock, tab, shift+all numpad (and all 
     * combinations of shift+{X}+num pad), F12, ctrl+shift{e,r,a,j}
     * Q W E R T X D Z A ENT O C S L I H Y K N B U P G M space F8 F1 F 1 2 3 4 5
     */

    Keys[] Blacklist = { Keys.Capital, Keys.CapsLock, Keys.F12, Keys.Tab, Keys.Q, 
                         Keys.W, Keys.E, Keys.R, Keys.T, Keys.X, Keys.D, Keys.Z, 
                         Keys.A, Keys.Enter, Keys.O, Keys.C, Keys.S, Keys.L, Keys.I,
                         Keys.H, Keys.Y, Keys.K, Keys.N, Keys.B, Keys.U, Keys.P, 
                         Keys.G, Keys.M, Keys.Space, Keys.F8, Keys.F1, Keys.F, 
                         Keys.D1, Keys.D2, Keys.D3, Keys.D4, Keys.D5 };

    foreach (Keys k in Blacklist)
        if (k == pressedKey)
            if (modifierKeys.GetHashCode() == Modifiers[0] ||
                modifierKeys.GetHashCode() == Modifiers[1] ||
                modifierKeys.GetHashCode() == Modifiers[2] ||
                modifierKeys.GetHashCode() == Modifiers[0] + Modifiers[1] ||
                modifierKeys.GetHashCode() == Modifiers[0] + Modifiers[2] ||
                modifierKeys.GetHashCode() == Modifiers[2] + Modifiers[1])
            {
                //Console.WriteLine("No block"); //yes it finally works!
            }
            else
            {
                e.Handled = true;
                e.SuppressKeyPress = true;
                return;
            }

    if (e.KeyCode == Keys.Escape)
        ((TextBox)sender).Parent.Focus();
    else if (pressedKey != Keys.ShiftKey && 
             pressedKey != Keys.Menu && 
             pressedKey != Keys.ControlKey && 
             pressedKey != Keys.None)
             //pressedKey != Keys.None modifierKeys != Keys.None
    {
        Set_Hotkey(_sender_id, e.Modifiers.GetHashCode(), e.KeyCode.GetHashCode());
        ((TextBox)sender).Parent.Focus();
    }
    else
        ((TextBox)sender).Text = new KeysConverter().ConvertToString(e.Modifiers);

    e.Handled = true;
    e.SuppressKeyPress = true;
}

我遇到的问题是，对于多修饰符，e.Modifiers.GetHashCode()返回131072(ctrl)、65536(alt)、262144(shift)或这些组合的任意和。我对(除了修饰符)执行GetHashCode()的任何其他键都会返回正确的值，没有任何问题。

当代码到达

private static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vk);

它总是无法使用修饰符注册热键，因为它不知道它期望的131072是什么2代码中的所有其他逻辑都是健全的，如果我尝试只注册(例如J键)，它将正常工作

我不明白为什么会发生这样的事情，有没有办法简单的解决它呢？例如获取1,2,4,5,6,7 ( RegisterHotKey期望的适当修饰符)。我有一个想法，有点丑陋/笨重，比如

int32 _mod;

if (e.modifier.gethashcode() == 131072)
    _mod = 2;

以此类推，对所有组合求和，这类似于我使用修饰符检查黑名单时所做的事情

另外，我很抱歉发表了非常奇怪的评论，我通常不评论代码，但我正在将整个程序推到github上，所以我试图对我所做的事情发表更多评论，这是我最少评论的空洞，因为我一直在修改它，试图修复它。

Answer 1

我用的是什么

Dictionary<Keys, int> _mods = new Dictionary<Keys, int> {
    { Keys.Alt, 1 },
    { Keys.Control, 2 },
    { Keys.Alt ^ Keys.Control, 3 },
    { Keys.Shift, 4 },
    { Keys.Alt ^ Keys.Shift, 5 },
    { Keys.Shift ^ Keys.Control, 6 },
    { Keys.Alt ^ Keys.Shift ^ Keys.Control, 7}
};

用法：

Set_Hotkey(_sender_id, //id
 _mods.ContainsKey(e.Modifiers) ? _mods[e.Modifiers] : 0, //modifier
 e.KeyCode.GetHashCode() //vk
);

完美的工作耶！