#include <QApplication>
#include <QWidget>
#include <QWindow>

int main(int argc, char *argv[]) {
	QApplication app(argc, argv);
	QWidget widget;
	widget.resize(0, 0);
	widget.createWinId();
	widget.windowHandle()->destroy();
	widget.resize(100, 100);
	widget.show();
	return app.exec();
}