".onClosing" is not available due to component versioning

jiancaiyang

I write a simple program look at this:

import QtQuick 2.10
import QtQuick.Window 2.10

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    Item
    {
        //property Window theWindow: Window.window
        Window.window.onClosing:
        {
            console.warn( "我们就是要清除了哦。" );
        }
    }
}

But unfortunately it turns out:

qrc:/main.qml:13 ".onClosing" is not available due to component versioning.

How can I resolve the problem? Thanks in advance.

sierdzio

@jiancaiyang said in ".onClosing" is not available due to component versioning:

Window.window.onClosing:

The attached property of "Window" is called "window", so that line should read:

window.onClosing: {
  // ...
}

But better handle the signal in the window itself, not in it's child component.

jiancaiyang

In fact, some other component could be able to handle window's closing event even if out-of-scope. So I am trying to read Window's instance in that way. Finally I found this way worked:

import QtQuick 2.10
import QtQuick.Window 2.10

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    Item
    {
        id: root
        property Window theWindow: Window.window
        Connections
        {
            target: root.theWindow
            onClosing:
            {
                console.log( "我们就是要清除了哦。" );
            }
        }
    }
}