A data structure that normally includes information about a
user-interface component (like a button or an edit box) and has
pointers to the code needed to make the component work. Windows
are not widgets but widgets have windows in them. Widgets that
don't have any windows are called something else (gadgets).
These are statements that tell an X application what
action to do when the user presses a particular
key. With "key" I include modified keys like Shift-F1 or
Ctrl-Alt-Delete (which doesn't necessarily reboot your machine).
Any of the 334 named topics within the CSDGM. Elements contain
either other elements, in which case they are referred to as
compound elements, or some value, in which case they are
referred to as data elements or scalar elements.