The DisplayRectangle property returns the client rectangle of the display area of the control, not including the area occupied by any scroll bars that are showing.
Notes to Inheritors
When overriding the DisplayRectangle property in a derived class, use the base class's DisplayRectangle property to extend the base implementation. Alternatively, you must provide all the implementation.
Windows 8.1, Windows Server 2012 R2, 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)