快速 CoAP 多点播送探索范例

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#include "qmlcoapmulticastclient.h"
#include <QGuiApplication>
#include <QQmlApplicationEngine>
int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine;
    qmlRegisterType<QmlCoapMulticastClient>("CoapMulticastClient", 1, 0, "CoapMulticastClient");
    // Register the QtCoap namespace
    qmlRegisterUncreatableMetaObject(QtCoap::staticMetaObject, "qtcoap.example.namespace", 1, 0,
                                     "QtCoap", "Access to enums is read-only");
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                     &app, [url](QObject *obj, const QUrl &objUrl) {
        // Exit with error, if the object for main.qml could not be loaded.
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);
    engine.load(url);
    return app.exec();
}