C# capture main form keyboard events

Question

How to catch keyboard events of the WinForm main form, where other controls are. So I want to catch one event Ctrl + S and doesn\'t matter where focus

Answer 1

Handle the KeyDown on the form and all its controls.

private void OnFormLoad(object sender, EventArgs e)
{
    this.KeyDown += OnKeyDown;
    foreach (Control control in this.Controls)
    {
        control.KeyDown += OnKeyDown;
    }
}

private void OnKeyDown(object sender, KeyEventArgs e)
{
    if (e.Control)
    {
        if (e.KeyValue == (int)Keys.S)
        {
            Console.WriteLine("ctrl + s");
        }
    }
}