GtkTooltips
   Adds tooltips to other widgets.
  
Object Hierarchy
Direct subclasses
None.
Description
   
    Tooltips are the messages that appear next to a widget
    when the mouse pointer is held over it for a short amount of time.
    They are set via the set_tip() 
    method.
   
   
    They are especially helpful for adding more verbose 
    descriptions of things such as buttons in a toolbar.
   
   
    This widget holds tooltips for other widgets. You should only need one 
    Tooltip widget for all widgets you wish to add tips to.
   
   
    Tooltips can only be used on widgets which have their own 
    x window.
    Other widgets, e.g. GtkLabels can be added to an
    GtkEventBox to benefit from tooltips.
   
   
    A widget which wants to use a tooltip needs to expose GDK_ENTER_NOTIFY_MASK and
    GDK_LEAVE_NOTIFY_MASK which can be set via the 
    add_events()  function. Most widgets do this
    automatically, but e.g. a GtkDrawingArea does not.
   
  
Constructor
 --
   Creates a new tooltips instance.
  
Methods
enable()  
    Actives the showing of tooltips.
   disable()  
    Disable the showing of tooltips.
   set_delay()  
    Determines the time after which the tooltips are shown
   set_tip()  
    Sets the tooltip for a specific widget
   set_colors()  
    Sets the fore- and background color of the tooltips. Deprecated.
   force_window()  
    Used internally only.