The
this window expression refers to the g2-window that is associated with the window in which a user-initiated event takes place. You can specify this expression only in the Action attribute of an action button or user menu choice. The power of the
this window expression is to associate a g2-window, and therefore the set of knowledge it contains, with the initiation of a thread of processing. Thus, your application can associate a particular user-initiated event with a login account (in the g2-window's g2-window-user-name-in-operating-system attribute), computer identification (in the G2-remote-host-name attribute), current language (in the g2-window-specific-language attribute), and so on.