Windows API has a function called EnableWindow
that disables controls so user can't interact with them any more.
Is there an equivalent for GTK3 or GTK3++?
gtk_widget_set_sensitive (widget, FALSE);
Note that if you need to check whether a widget is sensitive, gtk_widget_get_sensitive()
returns the value set with the above function and gtk_widget_is_sensitive()
will tell you whether the widget really is sensitive -- this is affected by parent widgets sensitivity as well.