$Date: 2005/10/23 11:21:01 $
$Revision: 1.7 $
-- Current keyboard focus
-- Default keyboard focus
-- Is a focus present?
-- Set current_focus to an_object.
-- The focus to be set when checking phase is over
-- Start checking for a new keyboard focus.
-- Stop checking for a new keyboard focus.
-- Set the keyboard focus to new_focus.
Store and manage the keyboard focus. Used by EM_WIDGET_SCENE and
EM_COMPONENT_SCENE to set and retreive the keyboard focus.
Use EM_SHARED_FOCUS to access the singleton instance.