Microsoft.Windows.Controls.Ribbon.RibbonApplicationSplitMenuItem.OnActivatingKeyTip C# (CSharp) Method

        protected override void OnActivatingKeyTip(ActivatingKeyTipEventArgs e)
        {
            if (e.OriginalSource == this)
            {
                if (!CanOpenSubMenu)
                {
                    e.KeyTipVisibility = Visibility.Collapsed;
                }
                else
                {
                    e.KeyTipHorizontalPlacement = KeyTipHorizontalPlacement.KeyTipCenterAtTargetCenter;
                    e.KeyTipVerticalPlacement = KeyTipVerticalPlacement.KeyTipTopAtTargetCenter;
                    e.KeyTipHorizontalOffset = e.KeyTipVerticalOffset = 0;
                    e.PlacementTarget = ArrowToggleButton;
                }
            }
            else if (e.OriginalSource == HeaderButton)
            {
                e.KeyTipHorizontalPlacement = KeyTipHorizontalPlacement.KeyTipLeftAtTargetLeft;
                e.KeyTipVerticalPlacement = KeyTipVerticalPlacement.KeyTipTopAtTargetCenter;
                e.KeyTipHorizontalOffset = RibbonApplicationMenuItem.KeyTipHorizontalOffet;
                e.KeyTipVerticalOffset = 0;
                e.PlacementTarget = this;
            }
        }