Abstract: A document viewer control that is hosted by another computer program to provide that program with document viewing functionality, including enabling user interaction with the content. An interface provides the program with plug-in access to document viewing functionality, including scrolling, zooming, finding, layout, copying and the like. Properties may be retrieved and set via the interface, and commands may be issued. The result is that any program can provide document viewing functionality in a consistent manner. Moreover, via styles or the like, a program developer can deactivate and/or override default functionality, to customize and/or extend the document viewer as desired for a given program.

Abstract: A method and system for changing the zoom applied to a document. A request is received to change the zoom of a document displayed in a viewing area. A focal point is determined based on whether an insertion point or active selection is currently displayed in the viewing area. Then, the viewable area of the document is displayed in the viewing area based on the focal point and the zoom change.

Abstract: A method and system for changing the area in which to view the content of a document while maintaining access to various viewing options. In a first state, toolbar items are displayed in a toolbar area while a document is displayed in a document area. In changing to a second viewing state, certain items of the toolbar area are hidden while a menu toolbar item remains displayed. In addition, the document area is expanded to include the now-minimized toolbar area. The menu toolbar item may become semi-transparent during the second viewing state, provides access to viewing options, and also allows the viewing state to be changed back to the first viewing state.