Qt (7) QtでWindows Serviceを作る

class InteractiveService : public QtService<QApplication>
{
public:
    InteractiveService(int argc, char **argv);
    ~InteractiveService();
 
protected:
 
    void start();
    void stop();
    void pause();
    void resume();
    void processCommand(int code);
 
private:
    QLabel *gui;
};
 
InteractiveService::InteractiveService(int argc, char **argv)
    : QtService<QApplication>(argc, argv, "Qt Interactive Service"), gui(0)
{
    setServiceDescription("A Qt service with user interface.");
    setServiceFlags(QtServiceBase::CanBeSuspended);
}
 
InteractiveService::~InteractiveService()
{
}
 
void InteractiveService::start()
{
#if defined(Q_OS_WIN)
    if ((QSysInfo::WindowsVersion & QSysInfo::WV_NT_based) &&
        (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)) {
        logMessage( "Service GUI not allowed on Windows Vista. See the documentation for this example for more information.", QtServiceBase::Error );
        return;
    }
#endif
 
    qApp->setQuitOnLastWindowClosed(false);
 
    gui = new QLabel("Service", 0, Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);
    gui->move(QApplication::desktop()->availableGeometry().topLeft());
    gui->show();
}
 
void InteractiveService::stop()
{
    delete gui;
}
 
void InteractiveService::pause()
{
    if (gui)
	gui->hide();
}
 
void InteractiveService::resume()
{
    if (gui)
	gui->show();
}
 
void InteractiveService::processCommand(int code)
{
    gui->setText("Command code " + QString::number(code));
    gui->adjustSize();
}

int processArgs(int argc, char **argv)
{
    if (argc > 2) {
        QString arg1(argv[1]);
	if (arg1 == QLatin1String("-i") ||
            arg1 == QLatin1String("-install")) {
	    if (argc > 2) {
                QString account;
                QString password;
		QString path(argv[2]);
                if (argc > 3)
                    account = argv[3];
                if (argc > 4)
                    password = argv[4];
                printf("The service %s installed.\n",
                       (QtServiceController::install(path, account, password) ? "was" : "was not"));
                return 0;
            }
        } else {
            QString serviceName(argv[1]);
            QtServiceController controller(serviceName);
            QString option(argv[2]);
            if (option == QLatin1String("-u") ||
                option == QLatin1String("-uninstall")) {
                printf("The service \"%s\" %s uninstalled.\n",
                            controller.serviceName().toLatin1().constData(),
                            (controller.uninstall() ? "was" : "was not"));
                return 0;
            } else if (option == QLatin1String("-s") ||
                       option == QLatin1String("-start")) {
                QStringList args;
                for (int i = 3; i < argc; ++i)
                    args.append(QString::fromLocal8Bit(argv[i]));
                printf("The service \"%s\" %s started.\n",
                       controller.serviceName().toLatin1().constData(),
                            (controller.start(args) ? "was" : "was not"));
                return 0;
            } else if (option == QLatin1String("-t") ||
                       option == QLatin1String("-terminate")) {
                printf("The service \"%s\" %s stopped.\n",
                       controller.serviceName().toLatin1().constData(),
                       (controller.stop() ? "was" : "was not"));
                return 0;
            } else if (option == QLatin1String("-p") ||
                    option == QLatin1String("-pause")) {
                printf("The service \"%s\" %s paused.\n",
                       controller.serviceName().toLatin1().constData(),
                       (controller.pause() ? "was" : "was not"));
                return 0;
            } else if (option == QLatin1String("-r") ||
                       option == QLatin1String("-resume")) {
                printf("The service \"%s\" %s resumed.\n",
                       controller.serviceName().toLatin1().constData(),
                       (controller.resume() ? "was" : "was not"));
                return 0;
            } else if (option == QLatin1String("-c") ||
                       option == QLatin1String("-command")) {
                if (argc > 3) {
                    QString codestr(argv[3]);
                    int code = codestr.toInt();
                    printf("The command %s sent to the service \"%s\".\n",
                           (controller.sendCommand(code) ? "was" : "was not"),
                           controller.serviceName().toLatin1().constData());
                    return 0;
                }
            } else if (option == QLatin1String("-v") ||
                    option == QLatin1String("-version")) {
                bool installed = controller.isInstalled();
                printf("The service\n"
                        "\t\"%s\"\n\n", controller.serviceName().toLatin1().constData());
                printf("is %s", (installed ? "installed" : "not installed"));
                printf(" and %s\n\n", (controller.isRunning() ? "running" : "not running"));
                if (installed) {
                    printf("path: %s\n", controller.serviceFilePath().toLatin1().data());
                    printf("description: %s\n", controller.serviceDescription().toLatin1().data());
                    printf("startup: %s\n", controller.startupType() == QtServiceController::AutoStartup ? "Auto" : "Manual");
                }
                return 0;
            }
        }
    }
    printf("controller [-i PATH | SERVICE_NAME [-v | -u | -s | -t | -p | -r | -c CODE] | -h] [-w]\n\n"
            "\t-i(nstall) PATH\t: Install the service\n"
            "\t-v(ersion)\t: Print status of the service\n"
            "\t-u(ninstall)\t: Uninstall the service\n"
            "\t-s(tart)\t: Start the service\n"
            "\t-t(erminate)\t: Stop the service\n"
            "\t-p(ause)\t: Pause the service\n"
            "\t-r(esume)\t: Resume the service\n"
            "\t-c(ommand) CODE\t: Send a command to the service\n"
            "\t-h(elp)\t\t: Print this help info\n"
            "\t-w(ait)\t\t: Wait for keypress when done\n");
    return 0;
}