The Qml taskbar is restored to the display state

[Nan Feng]

Dear Qt development team and forum friends, hello. I am writing a program using Qml, and the problem I have encountered is that the program is minimized when a button is clicked. Then after minimizing, clicking the program icon in the taskbar will restore to the display state, how can I judge it is this time? Because I want to add an animation to this process. I wrote this in the Widget development method:

if(event->type() == QEvent::WindowStateChange)
{
QWindowStateChangeEvent* stateEvent = static_cast<QWindowStateChangeEvent*>(event);

         if(stateEvent->oldState() & Qt::WindowMinimized)
         {
            // TODO: Animation
             return true;
         }

     }

Is there oldState in Qml?
I wrote it like this in Qml
onWindowStateChanged:
{

     if (windowState === Qt.WindowMinimized)
     {
         console.log("normal")
     }
 }

Obviously, the previous state should be used for judgment, so what does oldState correspond to in Qml?