CMDIFrameWndEx::ControlBarToTabbedDocument
Visual Studio 2012
Converts the specified docking pane to a tabbed document.
virtual CMDIChildWndEx* ControlBarToTabbedDocument( CDockablePane* pBar );
This method converts a docking pane to a tabbed document. When you call this method, the framework creates a CMDIChildWndEx Class object, removes the docking pane from the docking manager, and adds the docking pane to the new MDI child window. The MDI child window resizes the docking pane to cover the entire client area