QGroupBox

  QVBoxLayout *vLayoutMain=new QVBoxLayout(this);
    QGroupBox *gb=new QGroupBox(this);
    gb->setTitle("group");
    QVBoxLayout *vLayout=new QVBoxLayout();
    QLabel *lbl=new QLabel(this);
    lbl->setText("QGroupBox demo");
    QLabel *lbl2=new QLabel(this);
    lbl2->setText("hello");
    vLayout->addWidget(lbl);
    vLayout->addWidget(lbl2);
    gb->setLayout(vLayout);
    vLayoutMain->addWidget(gb);
    setLayout(vLayoutMain);