Creates a new GnomeDbControl object, which is an instance of the
Bonobo::Control CORBA interface, with some useful additions.
When calling this function, you must specify an already created
GtkWidget, which is the one that will be used for creating the
Bonobo control. You should use this class if you intend to write your
own Bonobo controls.
Sets the UI for the given GnomeDbControl object. This is done by
specifying a file that contains the description of the UI (see Bonobo
documentation) and a set of verbs and their corresponding actions.
Displays the given message on the container's status bar. If you use
GnomeDbWindow for your containers, you automatically have a status
bar on your window, and, with this function, you can set the message
to be displayed on that status bar from the components.