Method handleNotifyBlockTip

src/interfaces/node.cpp:271–277

        return MakeHandler(::uiInterface.BannedListChanged.connect(fn));
    }
    std::unique_ptr<Handler> handleNotifyBlockTip(NotifyBlockTipFn fn) override
    {
        return MakeHandler(::uiInterface.NotifyBlockTip.connect([fn](bool initial_download, const CBlockIndex* block) {
            fn(initial_download, block->nHeight, block->GetBlockTime(),
                GuessVerificationProgress(Params().TxData(), block));
        }));
    }
    std::unique_ptr<Handler> handleNotifyHeaderTip(NotifyHeaderTipFn fn) override
    {
        return MakeHandler(