Dock::Dock(QWidget *parent)
: QDockWidget(parent)
{
QWidget *headwidget = new QWidget();
QHBoxLayout *headlay = new QHBoxLayout();
QToolButton *one = new QToolButton();
headlay->addWidget(one);
headwidget->setLayout(headlay);
setTitleBarWidget(headwidget);
}
请问怎样才可以在去掉标题栏后,仍然可以通过鼠标拖动改变大小呢?