qt中postEvent()为什么会丢失？

qianbohound

我在一个线程中接受网络传过来的包，然后用Application::postEvent()通知
主线程(负责GUI)更新。
  可是发现有些QEvent没有发到接受者那里（表现为gui更新漏信息）。可是我
计算了一下postEvent的频率不高，才几hz亚。
  查了google，说异步线程不用postEvent还不行，昏亚～。
  那位大虾帮我分析一下有什么地反考虑不周到!
  bow!

cavendish

$QTDIR/doc/html/eventsandfilters.html

sendEvent() processes the event immediately - when sendEvent() returns, (the event filters and) the object have already processed the event. For many event classes there is a function called isAccepted() that tells you whether the event was accepted or rejected by the last handler that was called.

postEvent() posts the event on a queue for later dispatch. The next time Qt's main event loop runs, it dispatches all posted events, with some optimization. For example, if there are several resize events, they are are compacted into one. The same applies to paint events: QWidget::update() calls postEvent(), which minimizes flickering and increases speed by avoiding multiple repaints.

qianbohound

可是sendEvent()不能用多线程亚。
postEvent()可以亚。
怎么办亚。