Microsoft.Windows.Controls.Ribbon.RibbonMenuButton.OnLostMouseCaptureThunk C# (CSharp) Метод

        private void OnLostMouseCaptureThunk(MouseEventArgs e)
        {
            RibbonHelper.HandleLostMouseCapture(this,
                    e,
                    delegate() { return (IsDropDownOpen && !InContextMenu); },
                    delegate(bool value) { IsDropDownOpen = value; },
                    this,
                    this);
        }