C# Registered HotKey Down / Up event

[Tyler Wiebe]

I'm wondering how I can handle a registered hot key in a way other then when it's pressed.

The following will continually fire the HotKeyPressed event if the hot key is held down.

    public partial class Form1 : System.Windows.Forms.Form
    {
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        private static extern bool RegisterHotKey(System.IntPtr hWnd, int id, int fsModifiers, int vk);

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

        public delegate void HotKeyPressedHandler();
        public event HotKeyPressedHandler HotKeyPressed;

        public enum Modifiers : uint
        {
            ALT = 0x0001,
	        CTRL = 0x0002,
	        SHIFT = 0x0004,
	        WIN = 0x0008,
        }

        public Form1()
        {
            InitializeComponent();
            this.HotKeyPressed += new HotKeyPressedHandler(Form1_HotKeyPressed);
            RegisterHotKey(this.Handle, 0, (int)Modifiers.CTRL, (int)System.Windows.Forms.Keys.Q);
        }

        void Form1_HotKeyPressed()
        {
            System.Console.WriteLine("Hot Key Is Pressed");
        }

        protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
        {
            UnregisterHotKey(this.Handle, 0);
            base.OnClosing(e);
        }
        protected override void WndProc(ref System.Windows.Forms.Message m)
        {
            if (m.Msg == 0x312 && this.HotKeyPressed != null) this.HotKeyPressed();
            base.WndProc(ref m);
        }
    }

I want to know if there is a way to only fire the HotKeyPressed event when the hot key is first pressed, like a HotKeyDown event, and also I wouldn't mind having a HotKeyUp event.

So if anyone knows how to make it only fire once per press, please let me know.