QToolBar *toolBar = new QToolBar( QString(""), this, DockTop );
QWidget *hw = new QWidget(toolBar);
QHBoxLayout *layout = new QHBoxLayout(hw);
layout->setSpacing(0);
layout->addWidget(new QLineEdit("123456", hBox), 0);
#if QT_VERSION >= 4
(void)toolBar->addWidget(hw);