The Objective Toolkit docking views architecture allows views to float as MDI children, dock to the main frame, and also float outside the main frame. When a view is docked, you can resize the dockable views using the splitter bars positioned along the window’s edge. When a view is floating as an MDI child or outside the main frame, you can resize the frames embedding the view in both directions. Figure 151 illustrates how docking views appear in each of these docking states.