Defined in file gbproj.asn
C++ class: CViewDescriptor

ViewDescriptor ::= SEQUENCE {
    --- data for view opening
    data CHOICE {
        --- link to retrieve data
        link  ViewDataLink,  
        --- virtual project item, if link cannot be created
        item  ProjectItem
    --- plugin name of saved view
    view-plugin     VisibleString,
    --- view id
    view-id         INTEGER,
    --- optional settings, requered to open view
    view-memento    ViewMemento OPTIONAL