void TestClass::walletIsOpen( bool walletIsOpen )
{
    if( walletIsOpen ){
        QVector<lxqt::Wallet::walletKeyValues> s = m_wallet->readAllKeyValues() ;
        size_t j = s.size() ;
        for( size_t i = 0 ; i < j ; i++ ){
            const QString& key      = s.at( i ).getKey() ;
            const QByteArray& value = s.at( i ).getValue() ;
            qDebug() << "key=" << key << ":value=" << value ;
        }
    }else{
        qDebug() << "failed to open wallet" ;
    }

    /*
     * Delete the wallet object when done with it
     */
    m_wallet->deleteLater() ;
}

void TestClass::testWallet()
{
    /*
     * open a default backend( internal one )
     */
    m_wallet = lxqt::Wallet::getWalletBackend() ;

    /*
     * set the QObject with "walletIsOpen(bool)" slot
     */
    m_wallet->setInterfaceObject( this ) ;

    /*
     * open a wallet.
     * This method will return the result of the attempt though a slot on an object set above.
     */
    m_wallet->open( "test_wallet_name","test_application_name" ) ;
}