Method signMessage

src/wallet/interfaces.cpp:168–171

        return false;
    }
    SigningResult signMessage(const std::string& message, const PKHash& pkhash, std::string& str_sig) override
    {
        return m_wallet->SignMessage(message, pkhash, str_sig);
    }
    bool isSpendable(const CTxDestination& dest) override
    {
        LOCK(m_wallet->cs_wallet);