681
684
* @param decl A member-declaration of this context the navigation-widget should be created for. Zero to create a widget for this context.
682
685
* @param topContext Top-context from where the navigation-widget is triggered. In C++, this is needed to resolve forward-declarations.
683
686
* @param htmlPrefix Html-formatted text that should be prepended before any information shown by this widget
686
689
* Can return zero, which the default-implementation currently always does.