By default, EmbeddableUIElementBase-derived elements do not pass the MouseDown notification to their parent element. When the NotifyParentElement property is set to true, and the EatMessage property is false, the parent element's UIElement.OnMouseDown method is called.
This property is only applicable when the EatMessage property is false.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2