I need to make a function, the mouse events to the parent Widget, so using the setAttribute (Qt: : WA_TransparentForMouseEvents, true);
Code:

 MoveWidget_task=new Widget_task; 
MoveWidget_task - & gt; The setAttribute (Qt: : WA_TransparentForMouseEvents, true); 

Widget_task the inheritance to the Widget, without rewriting the mouse events,
This does not realize my effect, my mouse events didn't preach in the past,
I later in the constructor of Widget_task wrote this code,

 Widget_task: : Widget_task (QWidget * parent/*=nullptr */) 
: QWidget (parent) 
{
This - & gt; The setAttribute (Qt: : WA_TransparentForMouseEvents, true); 
} 

Thus repaired, can preach the past events, which a great god knows why, what's the setAttribute scope?

CodePudding user response:

I found that I set this property is in MousePress event, is the first piece of code inside the

 MoveWidget_task=new Widget_task; 
MoveWidget_task - & gt; The setAttribute (Qt: : WA_TransparentForMouseEvents, true); 

Is inside the Press event, could it be this reason