Fix mainwindow example

Sine Striker

2024-05-27 62d9c195f4fa77af10b4ace59b4c3353a31f417a

 examples/qml/main.cpp

@@ -1,5 +1,10 @@
// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
// SPDX-License-Identifier: Apache-2.0

#include <QtGui/QGuiApplication>
#include <QtQml/QQmlApplicationEngine>
#include <QtQuick/QQuickWindow>

#include <QWKQuick/qwkquickglobal.h>

@@ -12,13 +17,15 @@
    qputenv("QT_QUICK_CONTROLS_STYLE", "Default");
#endif
#if 0
    qputenv("QSG_RHI_BACKEND", "d3d12");
    qputenv("QSG_RHI_HDR", "scrgb");
    qputenv("QT_QPA_DISABLE_REDIRECTION_SURFACE", "1");
#endif
    qputenv("QSG_RHI_BACKEND", "opengl");
    //qputenv("QSG_RHI_HDR", "scrgb");
    //qputenv("QT_QPA_DISABLE_REDIRECTION_SURFACE", "1");
    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(
        Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
#endif
    QGuiApplication application(argc, argv);
    // Make sure alpha channel is requested, our special effects on Windows depends on it.
    QQuickWindow::setDefaultAlphaBuffer(true);
    QQmlApplicationEngine engine;
    QWK::registerTypes(&engine);
    engine.load(QUrl(QStringLiteral("qrc:///main.qml")));