#include
int main(int argc, char* argv[])
{
QApplication app(argc, argv);
QPixmap pm(100,100);
pm.fill();
QPainter p(&pm);
p.setRenderHint(QPainter::Antialiasing, true);
QPen pen(Qt::blue, 2);
p.setPen(pen);
QBrush brush(Qt::green);
p.setBrush(brush);
p.drawEllipse(10, 10, 80, 80);
QLabel l;
l.setPixmap(pm);
l.show();
return app.exec();
}