Qt4.4 学习笔记（三） Laying Out Widgets（窗口布局）

 #include <QApplication>
 #include <QHBoxLayout>
 #include <QSlider>
 #include <QSpinBox>
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
     QWidget *window = new QWidget;
     window->setWindowTitle("Enter Your Age");
     QSpinBox *spinBox = new QSpinBox;
    QSlider *slider = new QSlider(Qt::Horizontal);
     spinBox->setRange(0, 130);
     slider->setRange(0, 130);
     QObject::connect(spinBox, SIGNAL(valueChanged(int)),
                     slider, SLOT(setValue(int)));
     QObject::connect(slider, SIGNAL(valueChanged(int)),
                      spinBox, SLOT(setValue(int)));
     spinBox->setValue(35);
     QHBoxLayout *layout = new QHBoxLayout;
     layout->addWidget(spinBox);
     layout->addWidget(slider);
     window->setLayout(layout);
     window->show();
     return app.exec();
 }




使用了spin和slider控件


结果如图所示：