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Sigma KEE - InterfaceWindow
that covers a (normally rectangular region of a computer screen. Each window has an image which covers its whole area and a level of transparency. A region of the screen may be covered by one or more
s in a specified order with the ``top'' window visible, and those sequentially underneigth visible only to the extent that the window(s) above them are partially or wholely transparent. An interface window is ``active'' if the state of the GUI is such that user input is automatically set to it.
is an image on a
that a user uses to interact with a
. The type of interaction depends upon the type of element and type of screen.
that appears in addition to the window with which a user is interacting. A popup window traditionally appears partially covering the previously active window, although some are place below the active window and are not visible until the active window no longer covers that area. A popup window may be used to provide information (including advertising) to the user or may be an interaction window.
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