int main(int argc, char* argv[])
{
	QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
	QApplication a{argc, argv};

	QWidget w;
	w.show();

	auto le = new QLineEdit{&w};
	le->setPlaceholderText("QLineEdit");

	auto ple = new QPlainTextEdit{&w};
	ple->setPlaceholderText("QPlainTextEdit");

	auto te = new QTextEdit{&w};
	te->setPlaceholderText("QTextEdit");

	QVBoxLayout l{&w};
	l.addWidget(new QLabel{"label", &w});
	l.addWidget(le);
	l.addWidget(ple);
	l.addWidget(te);
	l.addStretch();

	return a.exec();
}