Hardcodet.Wpf.TaskbarNotification.TaskbarIcon.ShowTrayPopup C# (CSharp) Method

        private void ShowTrayPopup(Point cursorPosition)
        {
            if (IsDisposed) return;

            //raise preview event no matter whether popup is currently set
            //or not (enables client to set it on demand)
            var args = RaisePreviewTrayPopupOpenEvent();
            if (args.Handled) return;

            if (TrayPopup != null)
            {
                //use absolute position, but place the popup centered above the icon
                TrayPopupResolved.Placement = PlacementMode.AbsolutePoint;
                TrayPopupResolved.HorizontalOffset = cursorPosition.X;
                TrayPopupResolved.VerticalOffset = cursorPosition.Y;

                //open popup
                TrayPopupResolved.IsOpen = true;

                IntPtr handle = IntPtr.Zero;
                if (TrayPopupResolved.Child != null)
                {
                    //try to get a handle on the popup itself (via its child)
                    HwndSource source = (HwndSource)PresentationSource.FromVisual(TrayPopupResolved.Child);
                    if (source != null) handle = source.Handle;
                }

                //if we don't have a handle for the popup, fall back to the message sink
                if (handle == IntPtr.Zero) handle = messageSink.MessageWindowHandle;

                //activate either popup or message sink to track deactivation.
                //otherwise, the popup does not close if the user clicks somewhere else
                WinApi.SetForegroundWindow(handle);

                //raise attached event - item should never be null unless developers
                //changed the CustomPopup directly...
                if (TrayPopup != null) RaisePopupOpenedEvent(TrayPopup);

                //bubble routed event
                RaiseTrayPopupOpenEvent();
            }
        }