main.cpp

qt类库是非微软类库

#include <qapplication.h>
#include <qhbox.h>
#include <qslider.h>
#include <qspinbox.h>
int main(int argc, char* argv[])
{
QApplication app(argc, argv);
QHBox* hbox = new QHBox(0);
hbox->setCaption("Enter Your Age");
hbox->setMargin(50);
hbox->setSpacing(20);
QSpinBox* spinBox = new QSpinBox(hbox);
QSlider* slider = new QSlider(Qt::Horizontal, hbox);
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);
app.setMainWidget(hbox);
hbox->show();
return app.exec();
}