Qt4, QtCreator
I am trying to draw inside Widget:
void Widget::on_pushButton_clicked()
{
QPainter painter;
painter.begin(ui->label);
QRectF rectangle(10.0, 20.0, 80.0, 60.0);
int startAngle = 30 * 16;
int spanAngle = 120 * 16;
painter.drawArc(rectangle, startAngle, spanAngle);
painter.end();
}
But when I press button nothing happens.
How to do this right way?