qt_second_project

#include <QApplication>
#include <QHBoxLayout>
#include <QSlider>
#include <QSpinBox>

int main(int argc ,char *argv[]) {

    QApplication app(argc,argv);
    QWidget* window = new QWidget;
    window->setWindowTitle("How many joints you smoke?");
    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();
}