* doc/lispref/commands.texi (Misc Events): Document how
`preedit-text' events are used.
previously displayed. @c FIXME: what is the value of ARG on PGTK?
This is a special event (@pxref{Special Events}), which normally
-should not be bound by the user to any command.
+should not be bound by the user to any command. Emacs will typically
+the text contained in the event behind the cursor on-screen when it is
+received.
@cindex @code{drag-n-drop} event
@item (drag-n-drop @var{position} @var{files})