Function GuiMain

src/qt/bitcoin.cpp:480–685

}

int GuiMain(int argc, char* argv[])
{
    std::unique_ptr<interfaces::Init> init = interfaces::MakeGuiInit(argc, argv);

    SetupEnvironment();
    util::ThreadSetInternalName("main");

    // Subscribe to global signals from core
    btcsignals::scoped_connection handler_message_box{::uiInterface.ThreadSafeMessageBox.connect(noui_ThreadSafeMessageBox)};
    btcsignals::scoped_connection handler_question{::uiInterface.ThreadSafeQuestion.connect(noui_ThreadSafeQuestion)};
    btcsignals::scoped_connection handler_init_message{::uiInterface.InitMessage.connect(noui_InitMessage)};

    // Do not refer to data directory yet, this can be overridden by Intro::pickDataDirectory

    /// 1. Basic Qt initialization (not dependent on parameters or configuration)
    Q_INIT_RESOURCE(bitcoin);
    Q_INIT_RESOURCE(bitcoin_locale);

#if defined(QT_QPA_PLATFORM_ANDROID)
    QApplication::setAttribute(Qt::AA_DontUseNativeMenuBar);
    QApplication::setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
    QApplication::setAttribute(Qt::AA_DontUseNativeDialogs);
#endif

    BitcoinApplication app;
    GUIUtil::LoadFont(QStringLiteral(":/fonts/monospace"));

    /// 2. Parse command-line options. We do this after qt in order to show an error if there are problems parsing these
    // Command-line options take precedence:
    SetupServerArgs(gArgs, init->canListenIpc());
    SetupUIArgs(gArgs);
    std::string error;
    if (!gArgs.ParseParameters(argc, argv, error)) {
        InitError(Untranslated(strprintf("Error parsing command line arguments: %s", error)));
        // Create a message box, because the gui has neither been created nor has subscribed to core signals
        QMessageBox::critical(nullptr, CLIENT_NAME,
            // message cannot be translated because translations have not been initialized
            QString::fromStdString("Error parsing command line arguments: %1.").arg(QString::fromStdString(error)));
        return EXIT_FAILURE;
    }

    // Error out when loose non-argument tokens are encountered on command line
    // However, allow BIP-21 URIs only if no options follow
    bool payment_server_token_seen = false;
    for (int i = 1; i < argc; i++) {
        QString arg(argv[i]);
        bool invalid_token = !arg.startsWith("-");
#ifdef ENABLE_WALLET
        if (arg.startsWith(BITCOIN_IPC_PREFIX, Qt::CaseInsensitive)) {
            invalid_token &= false;
            payment_server_token_seen = true;
        }
#endif
        if (payment_server_token_seen && arg.startsWith("-")) {
            InitError(Untranslated(strprintf("Options ('%s') cannot follow a BIP-21 payment URI", argv[i])));
            QMessageBox::critical(nullptr, CLIENT_NAME,
                                  // message cannot be translated because translations have not been initialized
                                  QString::fromStdString("Options ('%1') cannot follow a BIP-21 payment URI").arg(QString::fromStdString(argv[i])));