The wpOpen method is called to open a view of this object. The ulView parameter tells the object whether to open the Settings view, Contents view, or Help view (and so on), and param is an optional parameter. Note that both parameters can be zero, in which case the default view of the object is opened. This instance method is invoked when a user either double clicks on the object or selects the Settings item from the pop-up menu. When wpOpen is called as a result of the user selecting the Open item or clicking on the object, WPStyler will display a usage message box. OPEN_STYLER is returned as the default view to the Open item, because wpQueryDefaultView is subclasses and the Styler's ID is returned as the default view.