hi all,
I use QCustomplot class to do interactive picking and need to draw two lines moving with cursor. So I put line drawing in paintEvent(QPaintEvent *) .Meanwhile, I update(this->update() function) qcustomplot in mousemove(QMouseEvent *). However, because updating frequency is so high when trigger update() in mouseMove(QMouseEvent *) SLOT , other control( like pushbutton .etc) can not be saw .
So how to solve this problem.
thank you!