Dockable window's initial dock state. The opitions are pinned, unpinned, and hidden.

Namespace: http://schemas.esri.com/Desktop/AddInsSchema: DesktopAddIns_ElementOnly.xsd

<xs:attribute name="state" type="ST_DockState" use="optional" xmlns:xs="http://www.w3.org/2001/XMLSchema"></xs:attribute>