lzpmail
8th April 2011, 10:42
i write a draw wave program, when i run it ,it print
QPainter::begin:Paint device returned engine == 0, type:1
QWidget::paintEngine:should on longer be called
and recursive print it, the wave not show. i want to know what wrong, and what should to do.
QPainter::begin:Paint device returned engine == 0, type:1
QWidget::paintEngine:should on longer be called
and recursive print it, the wave not show. i want to know what wrong, and what should to do.