What happened to the QGraphicsSceneMouseEvent::button() function?

Yosvanis

Hi!!
I have next code;

void Test::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
    
    qDebug()<<"MouseMove"<<event->button();
    if (event->button() != Qt::LeftButton){
          //Always execute
              return;
    }
QGraphicsScene::mouseMoveEvent(event);
}

Output:
MouseMove Qt::NoButton

Why does the QGraphicsSceneMouseEvent :: button () function inside the mouseMoveEvent function return Qt :: Nobutton?
However mousePressEvent and mouseReleaseEvent function work fine :(
Output :
MousePress Qt::LeftButton
MouseMove Qt::NoButton
MouseMove Qt::NoButton
MouseRelease Qt::LeftButton

Thanks!!

SGaist

Hi,

That surprising indeed.

What version of Qt are you using ?
On what platform ?
Can you provide a minimal compilable example that reproduces this ?

Yosvanis

I have:
Qt Creator 4.9.1
Based on Qt 5.12.3 (MSVC 2017, 32 bit)
Built on May 26 2019 21:17:08
From revision 168e91b618
Copyright 2008-2019 The Qt Company Ltd. All rights reserved.

On Windows 10 Pro and you can run "Diagram Scene Example" and executed the same code just ~~before~~ after mousePressEvent, mouseMoveEvent and mouseReleaseEvent, in the DiagramScene class ... I'm sorry for my bad English ;)

SGaist

That's the Qt Creator information. I would like to know which version of Qt you are using to build your application.

SGaist

Looks like the buttons method return value could be fo interest.

Yosvanis

@sgaist The version is Qt opensource-windows-x86-5.13.0.