KONMAI on Rx

gistfile1.cs

Observable.FromEvent<KeyEventArgs>(this, "KeyDown")
    .BufferWithTimeOrCount(TimeSpan.FromMilliseconds(2000), 6)
    .Select(keys => keys.Select(key => key.EventArgs.KeyCode))
    .Where(keys => keys.SequenceEqual(new[] { Keys.K, Keys.O, Keys.N, Keys.M, Keys.A, Keys.I }))
    .Repeat()
    .Subscribe(_ => MessageBox.Show("Hit !"))
;