用不同的线程处理gui [英] Handling gui with different threads

问题描述

例如，如果我有一个gui有两个QPushButton和一个QTextEdit，我有一个新的qt和c + +，是否可以在不冻结gui的情况下从一个线程（与gui主线程不同）设置QTextEdit的值？

  /这些是我想从线程
设置的值（i = 0; i <100; i ++）{
 qtextedit.setText（i）; 
} 
  

解决方案

一个具有排队连接的信号/槽，或者向GUI线程发送事件。

你的例子足够快，不会阻塞GUI。

I'm new in qt and c++, and I have a problem with threads.

For example, if I have a gui with two QPushButton and one QTextEdit, is it possible to set values to the QTextEdit from a thread (different from the gui main thread) without freezing the gui?

// These are the values that I want to set from the thread  
for(i=0;i<100;i++){  
     qtextedit.setText(i);  
}

解决方案

It is possible: either use a signal/slot with a queued connection, or post events to the GUI thread.

Your example is fast enough to not block the GUI though.

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