A top-level window that is by default displayed without a title bar and raises a QueryStayOpened event. Because of the temporary nature of a popup window, it is typically contained in a NPopupWindowHost element, that defines its closing conditions and start position. A popup window can however be opened in any node window context, thus enabling context popups and menus for virtually all descendants of a window.
Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)