System.Windows.Interop.ActiveXHost.OnGotFocus C# (CSharp) Méthode

        private static void OnGotFocus(object sender, KeyboardFocusChangedEventArgs e)
        {
            ActiveXHost axhost = sender as ActiveXHost;

            if (axhost != null)
            {
                Invariant.Assert(axhost.ActiveXState >= ActiveXHelper.ActiveXState.InPlaceActive, "Should at least be InPlaceActive when getting focus");

                if (axhost.ActiveXState < ActiveXHelper.ActiveXState.UIActive)
                {
                    axhost.TransitionUpTo(ActiveXHelper.ActiveXState.UIActive);
                }
            }
        }