diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 9495549a8..2228d9106 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -1,792 +1,789 @@
 // Copyright (c) 2011-2016 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
 #include "config/bitcoin-config.h"
 #endif
 
 #include "bitcoingui.h"
 
 #include "chainparams.h"
 #include "clientmodel.h"
 #include "config.h"
 #include "guiconstants.h"
 #include "guiutil.h"
 #include "httprpc.h"
 #include "intro.h"
 #include "networkstyle.h"
 #include "optionsmodel.h"
 #include "platformstyle.h"
 #include "splashscreen.h"
 #include "utilitydialog.h"
 #include "winshutdownmonitor.h"
 
 #ifdef ENABLE_WALLET
 #include "paymentserver.h"
 #include "walletmodel.h"
 #endif
 
 #include "init.h"
 #include "rpc/server.h"
 #include "scheduler.h"
 #include "ui_interface.h"
 #include "util.h"
 #include "warnings.h"
 
 #ifdef ENABLE_WALLET
 #include "wallet/wallet.h"
 #endif
 
 #include <cstdint>
 
 #include <boost/filesystem/operations.hpp>
 #include <boost/thread.hpp>
 
 #include <QApplication>
 #include <QDebug>
 #include <QLibraryInfo>
 #include <QLocale>
 #include <QMessageBox>
 #include <QSettings>
 #include <QSslConfiguration>
 #include <QStringList>
 #include <QThread>
 #include <QTimer>
 #include <QTranslator>
 
 #if defined(QT_STATICPLUGIN)
 #include <QtPlugin>
 #if QT_VERSION < 0x050400
 Q_IMPORT_PLUGIN(AccessibleFactory)
 #endif
 #if defined(QT_QPA_PLATFORM_XCB)
 Q_IMPORT_PLUGIN(QXcbIntegrationPlugin);
 #elif defined(QT_QPA_PLATFORM_WINDOWS)
 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin);
 #elif defined(QT_QPA_PLATFORM_COCOA)
 Q_IMPORT_PLUGIN(QCocoaIntegrationPlugin);
 #endif
 #endif
 
 // Declare meta types used for QMetaObject::invokeMethod
 Q_DECLARE_METATYPE(bool *)
 Q_DECLARE_METATYPE(Amount)
 
 // Config is non-copyable so we can only register pointers to it
 Q_DECLARE_METATYPE(Config *)
 
 static void InitMessage(const std::string &message) {
     LogPrintf("init message: %s\n", message);
 }
 
 /**
  * Translate string to current locale using Qt.
  */
 static std::string Translate(const char *psz) {
     return QCoreApplication::translate("bitcoin-abc", psz).toStdString();
 }
 
 static QString GetLangTerritory() {
     QSettings settings;
     // Get desired locale (e.g. "de_DE")
     // 1) System default language
     QString lang_territory = QLocale::system().name();
     // 2) Language from QSettings
     QString lang_territory_qsettings =
         settings.value("language", "").toString();
     if (!lang_territory_qsettings.isEmpty())
         lang_territory = lang_territory_qsettings;
     // 3) -lang command line argument
     lang_territory = QString::fromStdString(
         gArgs.GetArg("-lang", lang_territory.toStdString()));
     return lang_territory;
 }
 
 /** Set up translations */
 static void initTranslations(QTranslator &qtTranslatorBase,
                              QTranslator &qtTranslator,
                              QTranslator &translatorBase,
                              QTranslator &translator) {
     // Remove old translators
     QApplication::removeTranslator(&qtTranslatorBase);
     QApplication::removeTranslator(&qtTranslator);
     QApplication::removeTranslator(&translatorBase);
     QApplication::removeTranslator(&translator);
 
     // Get desired locale (e.g. "de_DE")
     // 1) System default language
     QString lang_territory = GetLangTerritory();
 
     // Convert to "de" only by truncating "_DE"
     QString lang = lang_territory;
     lang.truncate(lang_territory.lastIndexOf('_'));
 
     // Load language files for configured locale:
     // - First load the translator for the base language, without territory
     // - Then load the more specific locale translator
 
     // Load e.g. qt_de.qm
     if (qtTranslatorBase.load(
             "qt_" + lang,
             QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
         QApplication::installTranslator(&qtTranslatorBase);
 
     // Load e.g. qt_de_DE.qm
     if (qtTranslator.load(
             "qt_" + lang_territory,
             QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
         QApplication::installTranslator(&qtTranslator);
 
     // Load e.g. bitcoin_de.qm (shortcut "de" needs to be defined in
     // bitcoin.qrc)
     if (translatorBase.load(lang, ":/translations/"))
         QApplication::installTranslator(&translatorBase);
 
     // Load e.g. bitcoin_de_DE.qm (shortcut "de_DE" needs to be defined in
     // bitcoin.qrc)
     if (translator.load(lang_territory, ":/translations/"))
         QApplication::installTranslator(&translator);
 }
 
 /* qDebug() message handler --> debug.log */
 void DebugMessageHandler(QtMsgType type, const QMessageLogContext &context,
                          const QString &msg) {
     Q_UNUSED(context);
     if (type == QtDebugMsg) {
         LogPrint(BCLog::QT, "GUI: %s\n", msg.toStdString());
     } else {
         LogPrintf("GUI: %s\n", msg.toStdString());
     }
 }
 
 /**
  * Class encapsulating Bitcoin ABC startup and shutdown.
  * Allows running startup and shutdown in a different thread from the UI thread.
  */
 class BitcoinABC : public QObject {
     Q_OBJECT
 public:
     explicit BitcoinABC();
 
 public Q_SLOTS:
     void initialize(Config *config,
                     HTTPRPCRequestProcessor *httpRPCRequestProcessor,
                     RPCServer *rpcServer);
     void shutdown();
 
 Q_SIGNALS:
-    void initializeResult(int retval);
-    void shutdownResult(int retval);
+    void initializeResult(bool success);
+    void shutdownResult();
     void runawayException(const QString &message);
 
 private:
     boost::thread_group threadGroup;
     CScheduler scheduler;
 
     /// Pass fatal exception message to UI thread
     void handleRunawayException(const std::exception *e);
 };
 
 /** Main Bitcoin application object */
 class BitcoinApplication : public QApplication {
     Q_OBJECT
 public:
     explicit BitcoinApplication(int &argc, char **argv);
     ~BitcoinApplication();
 
 #ifdef ENABLE_WALLET
     /// Create payment server
     void createPaymentServer();
 #endif
     /// parameter interaction/setup based on rules
     void parameterSetup();
     /// Create options model
     void createOptionsModel(bool resetSettings);
     /// Create main window
     void createWindow(const Config *, const NetworkStyle *networkStyle);
     /// Create splash screen
     void createSplashScreen(const NetworkStyle *networkStyle);
 
     /// Request core initialization
     void requestInitialize(Config &config,
                            HTTPRPCRequestProcessor &httpRPCRequestProcessor,
                            RPCServer &rpcServer);
     /// Request core shutdown
     void requestShutdown(Config &config);
 
     /// Get process return value
     int getReturnValue() { return returnValue; }
 
     /// Get window identifier of QMainWindow (BitcoinGUI)
     WId getMainWinId() const;
 
 public Q_SLOTS:
-    void initializeResult(int retval);
-    void shutdownResult(int retval);
+    void initializeResult(bool success);
+    void shutdownResult();
     /// Handle runaway exceptions. Shows a message box with the problem and
     /// quits the program.
     void handleRunawayException(const QString &message);
 
 Q_SIGNALS:
     void requestedInitialize(Config *config,
                              HTTPRPCRequestProcessor *httpRPCRequestProcessor,
                              RPCServer *rpcServer);
     void requestedShutdown();
     void stopThread();
     void splashFinished(QWidget *window);
 
 private:
     QThread *coreThread;
     OptionsModel *optionsModel;
     ClientModel *clientModel;
     BitcoinGUI *window;
     QTimer *pollShutdownTimer;
 #ifdef ENABLE_WALLET
     PaymentServer *paymentServer;
     WalletModel *walletModel;
 #endif
     int returnValue;
     const PlatformStyle *platformStyle;
     std::unique_ptr<QWidget> shutdownWindow;
 
     void startThread();
 };
 
 #include "bitcoin.moc"
 
 BitcoinABC::BitcoinABC() : QObject() {}
 
 void BitcoinABC::handleRunawayException(const std::exception *e) {
     PrintExceptionContinue(e, "Runaway exception");
     Q_EMIT runawayException(QString::fromStdString(GetWarnings("gui")));
 }
 
 void BitcoinABC::initialize(Config *cfg,
                             HTTPRPCRequestProcessor *httpRPCRequestProcessor,
                             RPCServer *rpcSrv) {
     Config &config(*cfg);
     RPCServer &rpcServer = *rpcSrv;
     try {
         qDebug() << __func__ << ": Running AppInit2 in thread";
         if (!AppInitBasicSetup()) {
             Q_EMIT initializeResult(false);
             return;
         }
 
         if (!AppInitParameterInteraction(config, rpcServer)) {
             Q_EMIT initializeResult(false);
             return;
         }
 
         if (!AppInitSanityChecks()) {
             Q_EMIT initializeResult(false);
             return;
         }
 
-        int rv = AppInitMain(config, *httpRPCRequestProcessor, threadGroup,
-                             scheduler);
+        bool rv = AppInitMain(config, *httpRPCRequestProcessor, threadGroup,
+                              scheduler);
         Q_EMIT initializeResult(rv);
     } catch (const std::exception &e) {
         handleRunawayException(&e);
     } catch (...) {
         handleRunawayException(nullptr);
     }
 }
 
 void BitcoinABC::shutdown() {
     try {
         qDebug() << __func__ << ": Running Shutdown in thread";
         Interrupt(threadGroup);
         threadGroup.join_all();
         Shutdown();
         qDebug() << __func__ << ": Shutdown finished";
-        Q_EMIT shutdownResult(1);
+        Q_EMIT shutdownResult();
     } catch (const std::exception &e) {
         handleRunawayException(&e);
     } catch (...) {
         handleRunawayException(nullptr);
     }
 }
 
 BitcoinApplication::BitcoinApplication(int &argc, char **argv)
     : QApplication(argc, argv), coreThread(0), optionsModel(0), clientModel(0),
       window(0), pollShutdownTimer(0),
 #ifdef ENABLE_WALLET
       paymentServer(0), walletModel(0),
 #endif
       returnValue(0) {
     setQuitOnLastWindowClosed(false);
 
     // UI per-platform customization.
     // This must be done inside the BitcoinApplication constructor, or after it,
     // because PlatformStyle::instantiate requires a QApplication.
     std::string platformName;
     platformName = gArgs.GetArg("-uiplatform", BitcoinGUI::DEFAULT_UIPLATFORM);
     platformStyle =
         PlatformStyle::instantiate(QString::fromStdString(platformName));
     // Fall back to "other" if specified name not found.
     if (!platformStyle) platformStyle = PlatformStyle::instantiate("other");
     assert(platformStyle);
 }
 
 BitcoinApplication::~BitcoinApplication() {
     if (coreThread) {
         qDebug() << __func__ << ": Stopping thread";
         Q_EMIT stopThread();
         coreThread->wait();
         qDebug() << __func__ << ": Stopped thread";
     }
 
     delete window;
     window = 0;
 #ifdef ENABLE_WALLET
     delete paymentServer;
     paymentServer = 0;
 #endif
     delete optionsModel;
     optionsModel = 0;
     delete platformStyle;
     platformStyle = 0;
 }
 
 #ifdef ENABLE_WALLET
 void BitcoinApplication::createPaymentServer() {
     paymentServer = new PaymentServer(this);
 }
 #endif
 
 void BitcoinApplication::createOptionsModel(bool resetSettings) {
     optionsModel = new OptionsModel(nullptr, resetSettings);
 }
 
 void BitcoinApplication::createWindow(const Config *config,
                                       const NetworkStyle *networkStyle) {
     window = new BitcoinGUI(config, platformStyle, networkStyle, 0);
 
     pollShutdownTimer = new QTimer(window);
     connect(pollShutdownTimer, SIGNAL(timeout()), window,
             SLOT(detectShutdown()));
     pollShutdownTimer->start(200);
 }
 
 void BitcoinApplication::createSplashScreen(const NetworkStyle *networkStyle) {
     SplashScreen *splash = new SplashScreen(0, networkStyle);
     // We don't hold a direct pointer to the splash screen after creation, but
     // the splash screen will take care of deleting itself when slotFinish
     // happens.
     splash->show();
     connect(this, SIGNAL(splashFinished(QWidget *)), splash,
             SLOT(slotFinish(QWidget *)));
     connect(this, SIGNAL(requestedShutdown()), splash, SLOT(close()));
 }
 
 void BitcoinApplication::startThread() {
     if (coreThread) return;
     coreThread = new QThread(this);
     BitcoinABC *executor = new BitcoinABC();
     executor->moveToThread(coreThread);
 
     /*  communication to and from thread */
-    connect(executor, SIGNAL(initializeResult(int)), this,
-            SLOT(initializeResult(int)));
-    connect(executor, SIGNAL(shutdownResult(int)), this,
-            SLOT(shutdownResult(int)));
+    connect(executor, SIGNAL(initializeResult(bool)), this,
+            SLOT(initializeResult(bool)));
+    connect(executor, SIGNAL(shutdownResult()), this, SLOT(shutdownResult()));
     connect(executor, SIGNAL(runawayException(QString)), this,
             SLOT(handleRunawayException(QString)));
 
     // Note on how Qt works: it tries to directly invoke methods if the signal
     // is emitted on the same thread that the target object 'lives' on.
     // But if the target object 'lives' on another thread (executor here does)
     // the SLOT will be invoked asynchronously at a later time in the thread
     // of the target object.  So.. we pass a pointer around.  If you pass
     // a reference around (even if it's non-const) you'll get Qt generating
     // code to copy-construct the parameter in question (Q_DECLARE_METATYPE
     // and qRegisterMetaType generate this code).  For the Config class,
     // which is noncopyable, we can't do this.  So.. we have to pass
     // pointers to Config around.  Make sure Config &/Config * isn't a
     // temporary (eg it lives somewhere aside from the stack) or this will
     // crash because initialize() gets executed in another thread at some
     // unspecified time (after) requestedInitialize() is emitted!
     connect(this, SIGNAL(requestedInitialize(
                       Config *, HTTPRPCRequestProcessor *, RPCServer *)),
             executor,
             SLOT(initialize(Config *, HTTPRPCRequestProcessor *, RPCServer *)));
 
     connect(this, SIGNAL(requestedShutdown()), executor, SLOT(shutdown()));
     /*  make sure executor object is deleted in its own thread */
     connect(this, SIGNAL(stopThread()), executor, SLOT(deleteLater()));
     connect(this, SIGNAL(stopThread()), coreThread, SLOT(quit()));
 
     coreThread->start();
 }
 
 void BitcoinApplication::parameterSetup() {
     InitLogging();
     InitParameterInteraction();
 }
 
 void BitcoinApplication::requestInitialize(
     Config &config, HTTPRPCRequestProcessor &httpRPCRequestProcessor,
     RPCServer &rpcServer) {
     qDebug() << __func__ << ": Requesting initialize";
     startThread();
     // IMPORTANT: config must NOT be a reference to a temporary because below
     // signal may be connected to a slot that will be executed as a queued
     // connection in another thread!
     Q_EMIT requestedInitialize(&config, &httpRPCRequestProcessor, &rpcServer);
 }
 
 void BitcoinApplication::requestShutdown(Config &config) {
     // Show a simple window indicating shutdown status. Do this first as some of
     // the steps may take some time below, for example the RPC console may still
     // be executing a command.
     shutdownWindow.reset(ShutdownWindow::showShutdownWindow(window));
 
     qDebug() << __func__ << ": Requesting shutdown";
     startThread();
     window->hide();
     window->setClientModel(0);
     pollShutdownTimer->stop();
 
 #ifdef ENABLE_WALLET
     window->removeAllWallets();
     delete walletModel;
     walletModel = 0;
 #endif
     delete clientModel;
     clientModel = 0;
 
     StartShutdown();
 
     // Request shutdown from core thread
     Q_EMIT requestedShutdown();
 }
 
-void BitcoinApplication::initializeResult(int retval) {
-    qDebug() << __func__ << ": Initialization result: " << retval;
-    // Set exit result: 0 if successful, 1 if failure
-    returnValue = retval ? 0 : 1;
-    if (retval) {
+void BitcoinApplication::initializeResult(bool success) {
+    qDebug() << __func__ << ": Initialization result: " << success;
+    returnValue = success ? EXIT_SUCCESS : EXIT_FAILURE;
+    if (success) {
         // Log this only after AppInit2 finishes, as then logging setup is
         // guaranteed complete.
         qWarning() << "Platform customization:" << platformStyle->getName();
 #ifdef ENABLE_WALLET
         PaymentServer::LoadRootCAs();
         paymentServer->setOptionsModel(optionsModel);
 #endif
 
         clientModel = new ClientModel(optionsModel);
         window->setClientModel(clientModel);
 
 #ifdef ENABLE_WALLET
         // TODO: Expose secondary wallets
         if (!vpwallets.empty()) {
             walletModel =
                 new WalletModel(platformStyle, vpwallets[0], optionsModel);
 
             window->addWallet(BitcoinGUI::DEFAULT_WALLET, walletModel);
             window->setCurrentWallet(BitcoinGUI::DEFAULT_WALLET);
 
             connect(walletModel, SIGNAL(coinsSent(CWallet *, SendCoinsRecipient,
                                                   QByteArray)),
                     paymentServer,
                     SLOT(fetchPaymentACK(CWallet *, const SendCoinsRecipient &,
                                          QByteArray)));
         }
 #endif
 
         // If -min option passed, start window minimized.
         if (gArgs.GetBoolArg("-min", false)) {
             window->showMinimized();
         } else {
             window->show();
         }
         Q_EMIT splashFinished(window);
 
 #ifdef ENABLE_WALLET
         // Now that initialization/startup is done, process any command-line
         // bitcoincash: URIs or payment requests:
         connect(paymentServer,
                 SIGNAL(receivedPaymentRequest(SendCoinsRecipient)), window,
                 SLOT(handlePaymentRequest(SendCoinsRecipient)));
         connect(window, SIGNAL(receivedURI(QString)), paymentServer,
                 SLOT(handleURIOrFile(QString)));
         connect(paymentServer, SIGNAL(message(QString, QString, unsigned int)),
                 window, SLOT(message(QString, QString, unsigned int)));
         QTimer::singleShot(100, paymentServer, SLOT(uiReady()));
 #endif
     } else {
         // Exit main loop.
         quit();
     }
 }
 
-void BitcoinApplication::shutdownResult(int retval) {
-    qDebug() << __func__ << ": Shutdown result: " << retval;
+void BitcoinApplication::shutdownResult() {
     // Exit main loop after shutdown finished.
     quit();
 }
 
 void BitcoinApplication::handleRunawayException(const QString &message) {
     QMessageBox::critical(
         0, "Runaway exception",
         BitcoinGUI::tr("A fatal error occurred. Bitcoin can no longer continue "
                        "safely and will quit.") +
             QString("\n\n") + message);
     ::exit(EXIT_FAILURE);
 }
 
 WId BitcoinApplication::getMainWinId() const {
     if (!window) return 0;
 
     return window->winId();
 }
 
 #ifndef BITCOIN_QT_TEST
 
 static void MigrateSettings() {
     assert(!QApplication::applicationName().isEmpty());
 
     static const QString legacyAppName("Bitcoin-Qt"),
 #ifdef Q_OS_DARWIN
         // Macs and/or iOS et al use a domain-style name for Settings
         // files. All other platforms use a simple orgname. This
         // difference is documented in the QSettings class documentation.
         legacyOrg("bitcoin.org");
 #else
         legacyOrg("Bitcoin");
 #endif
     QSettings
         // below picks up settings file location based on orgname,appname
         legacy(legacyOrg, legacyAppName),
         // default c'tor below picks up settings file location based on
         // QApplication::applicationName(), et al -- which was already set
         // in main()
         abc;
 #ifdef Q_OS_DARWIN
     // Disable bogus OSX keys from MacOS system-wide prefs that may cloud our
     // judgement ;) (this behavior is also documented in QSettings docs)
     legacy.setFallbacksEnabled(false);
     abc.setFallbacksEnabled(false);
 #endif
     const QStringList legacyKeys(legacy.allKeys());
 
     // We only migrate settings if we have Core settings but no Bitcoin-ABC
     // settings
     if (!legacyKeys.isEmpty() && abc.allKeys().isEmpty()) {
         for (const QString &key : legacyKeys) {
             // now, copy settings over
             abc.setValue(key, legacy.value(key));
         }
     }
 }
 
 int main(int argc, char *argv[]) {
     SetupEnvironment();
 
     /// 1. Parse command-line options. These take precedence over anything else.
     // Command-line options take precedence:
     gArgs.ParseParameters(argc, argv);
 
     // Do not refer to data directory yet, this can be overridden by
     // Intro::pickDataDirectory
 
     /// 2. Basic Qt initialization (not dependent on parameters or
     /// configuration)
     Q_INIT_RESOURCE(bitcoin);
     Q_INIT_RESOURCE(bitcoin_locale);
 
     BitcoinApplication app(argc, argv);
 #if QT_VERSION > 0x050100
     // Generate high-dpi pixmaps
     QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif
 #if QT_VERSION >= 0x050600
     QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
 #endif
 #ifdef Q_OS_MAC
     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
 #endif
 #if QT_VERSION >= 0x050500
     // Because of the POODLE attack it is recommended to disable SSLv3
     // (https://disablessl3.com/), so set SSL protocols to TLS1.0+.
     QSslConfiguration sslconf = QSslConfiguration::defaultConfiguration();
     sslconf.setProtocol(QSsl::TlsV1_0OrLater);
     QSslConfiguration::setDefaultConfiguration(sslconf);
 #endif
 
     // Register meta types used for QMetaObject::invokeMethod
     qRegisterMetaType<bool *>();
     //   Need to pass name here as Amount is a typedef (see
     //   http://qt-project.org/doc/qt-5/qmetatype.html#qRegisterMetaType)
     //   IMPORTANT if it is no longer a typedef use the normal variant above
     qRegisterMetaType<Amount>("Amount");
     qRegisterMetaType<std::function<void(void)>>("std::function<void(void)>");
 
     // Need to register any types Qt doesn't know about if you intend
     // to use them with the signal/slot mechanism Qt provides. Even pointers.
     // Note that class Config is noncopyable and so we can't register a
     // non-pointer version of it with Qt, because Qt expects to be able to
     // copy-construct non-pointers to objects for invoking slots
     // behind-the-scenes in the 'Queued' connection case.
     qRegisterMetaType<Config *>();
 
     /// 3. Application identification
     // must be set before OptionsModel is initialized or translations are
     // loaded, as it is used to locate QSettings.
     // Note: If you move these calls somewhere else, be sure to bring
     // MigrateSettings() below along for the ride.
     QApplication::setOrganizationName(QAPP_ORG_NAME);
     QApplication::setOrganizationDomain(QAPP_ORG_DOMAIN);
     QApplication::setApplicationName(QAPP_APP_NAME_DEFAULT);
     // Migrate settings from core's/our old GUI settings to Bitcoin ABC
     // only if core's exist but Bitcoin ABC's doesn't.
     // NOTE -- this function needs to be called *after* the above 3 lines
     // that set the app orgname and app name! If you move the above 3 lines
     // to elsewhere, take this call with you!
     MigrateSettings();
     GUIUtil::SubstituteFonts(GetLangTerritory());
 
     /// 4. Initialization of translations, so that intro dialog is in user's
     /// language. Now that QSettings are accessible, initialize translations.
     QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator;
     initTranslations(qtTranslatorBase, qtTranslator, translatorBase,
                      translator);
     translationInterface.Translate.connect(Translate);
 
     // Show help message immediately after parsing command-line options (for
     // "-lang") and setting locale, but before showing splash screen.
     if (gArgs.IsArgSet("-?") || gArgs.IsArgSet("-h") ||
         gArgs.IsArgSet("-help") || gArgs.IsArgSet("-version")) {
         HelpMessageDialog help(nullptr, gArgs.IsArgSet("-version"));
         help.showOrPrint();
         return EXIT_SUCCESS;
     }
 
     /// 5. Now that settings and translations are available, ask user for data
     /// directory. User language is set up: pick a data directory.
     if (!Intro::pickDataDirectory()) return EXIT_SUCCESS;
 
     /// 6. Determine availability of data directory and parse bitcoin.conf
     /// - Do not call GetDataDir(true) before this step finishes.
     if (!fs::is_directory(GetDataDir(false))) {
         QMessageBox::critical(
             0, QObject::tr(PACKAGE_NAME),
             QObject::tr(
                 "Error: Specified data directory \"%1\" does not exist.")
                 .arg(QString::fromStdString(gArgs.GetArg("-datadir", ""))));
         return EXIT_FAILURE;
     }
     try {
         gArgs.ReadConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME));
     } catch (const std::exception &e) {
         QMessageBox::critical(
             0, QObject::tr(PACKAGE_NAME),
             QObject::tr("Error: Cannot parse configuration file: %1. Only use "
                         "key=value syntax.")
                 .arg(e.what()));
         return EXIT_FAILURE;
     }
 
     /// 7. Determine network (and switch to network specific options)
     // - Do not call Params() before this step.
     // - Do this after parsing the configuration file, as the network can be
     // switched there.
     // - QSettings() will use the new application name after this, resulting in
     // network-specific settings.
     // - Needs to be done before createOptionsModel.
 
     // Check for -testnet or -regtest parameter (Params() calls are only valid
     // after this clause)
     try {
         SelectParams(gArgs.GetChainName());
     } catch (std::exception &e) {
         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME),
                               QObject::tr("Error: %1").arg(e.what()));
         return EXIT_FAILURE;
     }
 #ifdef ENABLE_WALLET
     // Parse URIs on command line -- this can affect Params()
     PaymentServer::ipcParseCommandLine(argc, argv);
 #endif
 
     QScopedPointer<const NetworkStyle> networkStyle(NetworkStyle::instantiate(
         QString::fromStdString(Params().NetworkIDString())));
     assert(!networkStyle.isNull());
     // Allow for separate UI settings for testnets
     QApplication::setApplicationName(networkStyle->getAppName());
     // Re-initialize translations after changing application name (language in
     // network-specific settings can be different)
     initTranslations(qtTranslatorBase, qtTranslator, translatorBase,
                      translator);
 
 #ifdef ENABLE_WALLET
     /// 8. URI IPC sending
     // - Do this early as we don't want to bother initializing if we are just
     // calling IPC
     // - Do this *after* setting up the data directory, as the data directory
     // hash is used in the name
     // of the server.
     // - Do this after creating app and setting up translations, so errors are
     // translated properly.
     if (PaymentServer::ipcSendCommandLine()) exit(EXIT_SUCCESS);
 
     // Start up the payment server early, too, so impatient users that click on
     // bitcoincash: links repeatedly have their payment requests routed to this
     // process:
     app.createPaymentServer();
 #endif
 
     /// 9. Main GUI initialization
     // Install global event filter that makes sure that long tooltips can be
     // word-wrapped.
     app.installEventFilter(
         new GUIUtil::ToolTipToRichTextFilter(TOOLTIP_WRAP_THRESHOLD, &app));
 #if defined(Q_OS_WIN)
     // Install global event filter for processing Windows session related
     // Windows messages (WM_QUERYENDSESSION and WM_ENDSESSION)
     qApp->installNativeEventFilter(new WinShutdownMonitor());
 #endif
     // Install qDebug() message handler to route to debug.log
     qInstallMessageHandler(DebugMessageHandler);
     // Allow parameter interaction before we create the options model
     app.parameterSetup();
     // Load GUI settings from QSettings
     app.createOptionsModel(gArgs.IsArgSet("-resetguisettings"));
 
     // Subscribe to global signals from core
     uiInterface.InitMessage.connect(InitMessage);
 
     // Get global config
     Config &config = const_cast<Config &>(GetConfig());
 
     if (gArgs.GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) &&
         !gArgs.GetBoolArg("-min", false))
         app.createSplashScreen(networkStyle.data());
 
     RPCServer rpcServer;
     HTTPRPCRequestProcessor httpRPCRequestProcessor(config, rpcServer);
 
     try {
         app.createWindow(&config, networkStyle.data());
         app.requestInitialize(config, httpRPCRequestProcessor, rpcServer);
 #if defined(Q_OS_WIN)
         WinShutdownMonitor::registerShutdownBlockReason(
             QObject::tr("%1 didn't yet exit safely...")
                 .arg(QObject::tr(PACKAGE_NAME)),
             (HWND)app.getMainWinId());
 #endif
         app.exec();
         app.requestShutdown(config);
         app.exec();
     } catch (const std::exception &e) {
         PrintExceptionContinue(&e, "Runaway exception");
         app.handleRunawayException(QString::fromStdString(GetWarnings("gui")));
     } catch (...) {
         PrintExceptionContinue(nullptr, "Runaway exception");
         app.handleRunawayException(QString::fromStdString(GetWarnings("gui")));
     }
     return app.getReturnValue();
 }
 #endif // BITCOIN_QT_TEST