Çözüldü C# Form'a İnster ile Açılıp kapanma özelliği nasıl verilir? [YARDIM]

//SINIF DOSYASI
public sealed  class KeyboardHook : IDisposable
{

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

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

    private class Window : NativeWindow, IDisposable
    {
        private static int WM_HOTKEY = 0x0312;

        public Window()
        {

            this.CreateHandle(new CreateParams());
        }

        protected override void WndProc(ref Message m)
        {
            base.WndProc(ref m);

            if (m.Msg == WM_HOTKEY)
            {

                Keys key = (Keys)(((int)m.LParam >> 16) & 0xFFFF);
                ModifierKeys modifier = (ModifierKeys)((int)m.LParam & 0xFFFF);

                // invoke the event to notify the parent.
                if (KeyPressed != null)
                    KeyPressed(this, new KeyPressedEventArgs(modifier, key));
            }
        }

        public event EventHandler<KeyPressedEventArgs> KeyPressed;

        #region IDisposable Members

        public void Dispose()
        {
            this.DestroyHandle();
        }

        #endregion
    }

    private Window _window = new Window();
    private int _currentId;

    public KeyboardHook()
    {

        _window.KeyPressed += delegate(object sender, KeyPressedEventArgs args)
        {
            if (KeyPressed != null)
                KeyPressed(this, args);
        };
    }

    public void RegisterHotKey(ModifierKeys modifier, Keys key)
    {

        _currentId = _currentId + 1;

        if (!RegisterHotKey(_window.Handle, _currentId, (uint)modifier, (uint)key))
            throw new InvalidOperationException("Couldn’t register the hot key.");
    }

    public event EventHandler<KeyPressedEventArgs> KeyPressed;

    #region IDisposable Members

    public void Dispose()
    {

        for (int i = _currentId; i > 0; i--)
        {
            UnregisterHotKey(_window.Handle, i);
        }

        // dispose the inner native window.
        _window.Dispose();
    }

    #endregion
}

public class KeyPressedEventArgs : EventArgs
{
    private ModifierKeys _modifier;
    private Keys _key;

    internal KeyPressedEventArgs(ModifierKeys modifier, Keys key)
    {
        _modifier = modifier;
        _key = key;
    }

    public ModifierKeys Modifier
    {
        get { return _modifier; }
    }

    public Keys Key
    {
        get { return _key; }
    }
}

[Flags]
public enum ModifierKeys : uint
{
    Alt = 1,
    Control = 2,
    Shift = 4,
    Win = 8
}

public partial  class Form1 : Form
{
    KeyboardHook hook = new KeyboardHook();
    // hook adında nesne oluştur.
  
    public Form1()
    {
        InitializeComponent();
        // (Formunun yapıcı metodunda)
        // Kısayol tuşuna basınca hangi event çalışacaksa onu ata.
        hook.KeyPressed +=
            new EventHandler<KeyPressedEventArgs>(hook_KeyPressed);
        // Kullanacağın tuşları belirle buradaki arkadaş Ctrl + Alt + F12 yapmış.
        hook.RegisterHotKey(ModifierKeys.Control | ModifierKeys.Alt,
            Keys.F12);
    }

    // Bu yukarıda adını yazdığın event
    void hook_KeyPressed(object sender, KeyPressedEventArgs e)
    {
        // bastığın tuşları label da gösteriyor
        label1.Text = e.Modifier.ToString() + " + " + e.Key.ToString();
    }
}