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分享Qt 画图问题
比如说
这玩意怎么调用的？
void A::paintEvent(QPaintEvent *)
{
QPainter p(this);
...
}
这玩意怎么调用的？
...全文
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tubo_true 2012-06-26
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看书
就ok了
就ok了
CanDy_O 2012-06-26
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this->repaint();
树先生1991 2012-06-25
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你在绘制窗口的时候，都要用这个qpainter的， 画东西有了它，就相当于你手里有了工具来进行画画
songhuirong1 2012-06-25
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在绘制窗口的时候，Qt会自动调用的
feilinhe 2012-06-24
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当你使用update()或者repaint()函数时会自动调用，另assistant 助手你不用吗？：
This event handler can be reimplemented in a subclass to receive paint events passed in event.
A paint event is a request to repaint all or part of a widget. It can happen for one of the following reasons:
repaint() or update() was invoked,
the widget was obscured and has now been uncovered, or many other reasons.
This event handler can be reimplemented in a subclass to receive paint events passed in event.
A paint event is a request to repaint all or part of a widget. It can happen for one of the following reasons:
repaint() or update() was invoked,
the widget was obscured and has now been uncovered, or many other reasons.
jdwx 2012-06-24
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这玩意是被Qt调用的，也可以说被系统调用的，用于重绘这个QWidget（窗口）。
