标题:为什么mouseMoveEvent会触发paintEvent？
作者:sywh
日期:2014-06-04 14:37
内容:
为什么mouseMoveEvent会触发paintEvent？然后会一直引起重绘，如果我不想让mouseMoveEvent引起重绘，需要怎么处理？
#1 [toby520 06-04 16:22]
不触发paintevent就不要重写它 我想应该不会重绘
#2 [toby520 06-04 16:29]
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.
#3 [_jason 06-19 19:36]
setUpdatesEnabled(TRUE);
update();
setUpdatesEnabled(FALSE);
在需要重绘的时候要这两个函数，update之后会设置为False,其他事件就不会触发重绘了