We need to draw a line on an image in the Qt program
We need to draw a line on an image in the Qt program
To draw a line:
void paintEvent(QPaintEvent *event)
{
QPainter painter(this);
painter.setPen(QPen(Qt::black, 12, Qt::DashDotLine, Qt::RoundCap));
painter.drawLine(0, 0, 200, 200);
}