How to make painting on mouse move?

[athulms]

void drawings::mouseMoveEvent(QMouseEvent *)
{
point=this->mapFromGlobal(QCursor::pos());
this->repaint();
}
void drawings::paintEvent(QPaintEvent *event)
{

painter= new QPainter(this);
QPen linepen(Qt::cyan);
linepen.setCapStyle(Qt::RoundCap);
linepen.setWidth(30);
painter->setRenderHint(QPainter::Antialiasing,true);
painter->setRenderHint(QPainter::SmoothPixmapTransform,true );
painter->setPen(linepen);
painter->drawPoint(point);
}




this call repaint on mouse move event.but we can see the image moving with the mouse. ie, i can see only one point at a time. i have to make painting as we draw in MS paint

[ChrisW67]

Scribble Example or the Plug and Paint example.