qt4中如何在QFrame中绘图？ [复制链接]

其中CFindFileForm为主窗体。MyDrawFrame为QFrame * ，其包含在主窗体中。

void CFindFileForm::paintEvent(QPaintEvent * event)
{
    QPainter painter(MyDrawFrame);
    painter.setPen(Qt::blue);
    painter.setFont(QFont("Arial", 30));
    painter.drawText(rect(), Qt::AlignCenter,"Qt");
    qDebug()<<"paintEven is ok";
}

执行程序的时候出现如下的提示
QPainter::begin: Widget painting can only begin as a result of a paintEvent
QPainter::setFont: Painter not active
QPainter::end: Painter not active, aborted
paintEven is ok
但是图就是画不出来，请问怎么改？

应该在MyDrawFrame的::paintEvent(QPaintEvent * event)里做这些事情

明白楼上的意思，看来没办法偷懒了。谢谢！

this->setAttribute(Qt::WA_PaintOutsidePaintEvent);