null if none has been set explicitly
StackSidebar.getStack
gtk.stack.Stack getStack() nothrowRetrieves the stack. See gtk.stack_sidebar.StackSidebar.setStack.
Returns
the associated #GtkStack or
gtk.stack.Stack getStack() nothrowRetrieves the stack. See gtk.stack_sidebar.StackSidebar.setStack.
null if none has been set explicitly