Greetings,
The problem is that qputenv does not work if written after the
initialization of QGuiApplication.
I want to calculate scale according to the information from QGuiApplication.
How do I do it? The following code throws a segmentation fault.
.
.
#include <QGuiApplication>#include <QQmlApplicationEngine>#include
<QScreen>#include <QDebug>int main(int argc, char *argv[]){
qreal abc = QGuiApplication::primaryScreen()->physicalDotsPerInch();
qDebug() << "null " << abc;
qputenv("QT_SCALE_FACTOR", "2");
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
const QUrl url(QStringLiteral("qrc:/main.qml"));
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();
}
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