IF_WD_VIEW 
Interface IF_WD_VIEW is the generic interface for all Web Dynpro views.
This method retrieves a view element with the specified ID or NULL if no element exists.
This method retrieves the root element for the view element tree of the respective view.
This method retrieves the metadata description of the view embedding.
This method sets the focus on a specific view element.
Caution
Do not set the focus on Container UI elements, for example, ViewContainerUIElement.
This method resets the view layout, that is, the individual view elements of the view, to the initial status declared at design time. All dynamic layout modifications are rejected and the view is reassigned the status it had when it was initialized.
This method positions a view element in the visible area of the browser.
Note
This method can only be called within hook method WDDOMODIFYVIEW.