GtkInvisible: GtkInvisible
Description
A widget which is not displayedHierarchy
\link{GObject}
   +----\link{GtkObject}
         +----\link{GtkWidget}
               +----GtkInvisibleInterfaces
GtkInvisible implements
 AtkImplementorIface.Detailed Description
The GtkInvisible widget is used internally in GTK+, and is probably not 
very useful for application developers.
  
It is used for reliable pointer grabs and selection handling in the code
for drag-and-drop.Convenient Construction
gtkInvisible is the result of collapsing the constructors of GtkInvisible (gtkInvisibleNew, gtkInvisibleNewForScreen) and accepts a subset of its arguments matching the required arguments of one of its delegate constructors.References
http://developer.gnome.org/doc/API/2.0/gtk/GtkInvisible.html