#include <QApplication>
#include <QGuiApplication>

#include <QFileDialog>



int main(int argc, char *argv[])
{ // non-integer device-pixel ratio causes problems
  QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);

  // application
  QApplication app(argc,argv);

  // tested on 4K screen under Windows 10 with a device pixel ratio 1.5
  // resize the dialog to see the left edge of the right panel disappear when
  // shown on screen with non-integer device pixel ratio
  QFileDialog filedialog;
  filedialog.setOption(QFileDialog::DontUseNativeDialog,true);
  filedialog.show();

  return QApplication::exec();
}