minor tweaks

Zhao Yuhang

2023-12-11 fd1a6ff8a0e14801b1146873588f110c9db87145

 examples/mainwindow/main.cpp

@@ -1,4 +1,5 @@
#include <QApplication>
#include <QtWidgets/QApplication>
#include <QtCore/QDebug>

#include "mainwindow.h"

@@ -6,11 +7,15 @@
    qputenv("QT_WIN_DEBUG_CONSOLE", "1");
    qputenv("QSG_INFO", "1");
    qputenv("QT_WIDGETS_HIGHDPI_DOWNSCALE", "1");
#if 0
    qputenv("QT_WIDGETS_RHI", "1");
    qputenv("QSG_RHI_BACKEND", "d3d12");
    qputenv("QSG_RHI_HDR", "scrgb");
    qputenv("QT_QPA_DISABLE_REDIRECTION_SURFACE", "1");
    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
#endif

    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(
        Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
    QApplication a(argc, argv);
    MainWindow w;
    w.show();