Add broken Qt sample

samples/CPlusPlusQt/main.cpp

@@ -0,0 +1,34 @@
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+#include "autoupdater.h"
+
+int main(int argc, char *argv[]) {
+
+  try {
+    // Init Velopack hooks, MUST be as early as possible in main()
+    // Velopack may exit / restart our app at this statement
+    Velopack::startup(argv, argc);
+  } catch (const std::exception &err) {
+    qInfo() << "Error initating auto-updater, msg: " << err.what();
+  }
+
+  QGuiApplication app(argc, argv);
+
+  // Init Auto Updater as a singleton
+  qmlRegisterSingletonInstance("VelopackQt", 1, 0, "AutoUpdater",
+                               &AutoUpdater::instance());
+
+  QQmlApplicationEngine engine;
+  const QUrl url(u"qrc:/VelopackQtSample/Main.qml"_qs);
+  QObject::connect(
+      &engine, &QQmlApplicationEngine::objectCreated, &app,
+      [url](QObject *obj, const QUrl &objUrl) {
+        if (!obj && url == objUrl)
+          QCoreApplication::exit(-1);
+      },
+      Qt::QueuedConnection);
+  engine.load(url);
+
+  return app.exec();
+}