A menu which appears in response to a USer action (typically a moUSe click) and whose contents are determined by which application window was clicked or has the input focUS. Most GUIs USe a secondary moUSe button (right or middle) to call up a context-sensitive menu as the primary moUSe button is normally USed to interact with objects which are already visible. The context-sensitive menu often contains functions that are also available in a menu bar but the context-sensitive menu provides quick access to a subset of functions that are particularly relevant to the window area clicked on. The RISC OSWIMPUSes only context-sensitive menUS (always invoked USing the middle moUSe button). This saves screen space and reduces moUSe movement compared to a menu bar. (1999-09-22)