Removing the delay after KeyDown event?

Question

When I hold a key in my game to move my player:

public void MainForm_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Up)
    {
        Pla         


        

Answer 1

A subjectivly elegent approach:

public partial class Form1 : Form
{
    private static Timer timer;
    private static bool[] keys_down;
    private static Keys[] key_props;

    private void Form1_Load(object sender, EventArgs e)
    {
        keys_down = new bool[4];
        key_props = new []{Keys.A, Keys.D, Keys.W, Keys.S};
        timer = new Timer();
        timer.Interval = 15; // Roughly 67 FPS
        timer.Tick += tick;
        timer.Start();
        KeyDown += key_down_event;
        KeyUp += key_up_event;
        ... // More things to do when the form loads.
    }

    private void tick(Object source, EventArgs e)
    {
        ... // Do this every timing interval.
        byte n = 0;
        foreach (var v in keys_down)
        {
            if (n == 3 && v)
                ... // If the "s" key is being held down, no key delay issues. :)
            n++;
        }
        ...
    }

    private void key_down_event(object sender, KeyEventArgs e)
    {
        byte n = 0;
        foreach (var v in keys_down)
        {
            if (e.KeyCode == key_props[n])
                keys_down[n] = true;
            n++;
        }
    }

    private void key_up_event(object sender, KeyEventArgs e)
    {
        byte n = 0;
        foreach (var v in keys_down)
        {
            if (e.KeyCode == key_props[n])
                keys_down[n] = false;
            n++;
        }
    }

    public Form1()
    {
        InitializeComponent();
    }
}