Gets or sets a value that specifies the display state of the thumbnail button.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: Not mapped to an xmlns.
By default, the thumbnail button is Visible. Windows 7 allows a maximum of seven buttons in the taskbar thumbnail. When the property is set to Hidden, the thumbnail button has no visible elements, but space is still reserved for it. When the thumbnail button is Collapsed, it does not have any visible elements and no space is reserved for it. In this case, additional thumbnail buttons in the ThumbButtonInfos collection are displayed.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)