BYPASS_TRANSLATION , COPY , CURSOR_CROSSHAIR , CURSOR_IMAGE ,
CURSOR_MASK , CURSOR_ORIGINAL , CURSOR_STANDARD , CURSOR_XY ,
DECOMPOSED , DIRECT_COLOR , FLOYD , FONT , GET_CURRENT_FONT ,
GET_FONTNAMES , GET_FONTNUM , GET_GRAPHICS_FUNCTION ,
GET_SCREEN_SIZE , GET_VISUAL_NAME , GET_WINDOW_POSITIONrf ,
GET_WRITE_MASK , ORDERED , PSEUDO_COLOR , RETAIN ,
SET_CHARACTER_SIZE , SET_GRAPHICS_FUNCTION , SET_TRANSLATION ,
SET_WRITE_MASK , STATIC_COLOR , STATIC_GRAY , THRESHOLD ,
TRUE_COLOR , TTY , WINDOW_STATE X Windows is a network-based
windowing system developed by MIT's project Athena. IDL uses the
X System (often referred to simply as "X"), to provide an
environment in which the user can create one or more independent
windows, each of which can be used for the display of graphics
and/or images. In the X system, there are two basic cooperating
processes: clients and servers . A server consists of a display,
keyboard, and pointer (such as a mouse) as well as the software
that controls them. Client processes (such as I