#include <QApplication>
#include <QDialog>
#include <QSpinBox>
#include <QVBoxLayout>


int main (int argc, char *argv[])
{
  QApplication app(argc, argv);
  QDialog *dialog = new QDialog; 
  QSpinBox *spinbox = new QSpinBox;
  QVBoxLayout *layout = new QVBoxLayout;

  layout->addWidget (spinbox);
  dialog->setLayout (layout);
  dialog->show ();

  return app.exec();
}