QT keyboard with repeat option

[NightFury]

In my application I am using TextInput{ .. } and InputPanel { .. } in qml and I am able to invoke the keyboard and things work without any issue. I need repeated entry of a character when it is pressed continuously. [Ex. Long press of ‘a’ should return ‘aaaaaaaa..’]. But in my case it pops up the special character similar to a and it does not enter a until the press is released.
. I tried with below function as

function setupKeys(parent) {
        var obj = null
        if (parent === null)
            return null
        var children = parent.children
        for (var i = 0; i < children.length; i++) {
            obj = children[i]
            if (obj.toString().substring(0, 7) === "BaseKey") {
                   //THIS IS NEVER INVOKED!!
                    obj.alternativeKeys=""
                    obj.repeat=true
                    obj.showPreview=false
            }
            obj = setupKeys(obj)
            if (obj)
                break
        }

to enable the “obj.repeat=true” but as I mentioned in the comments there, it is never invoked.
I call the function as

import QtQuick 2.6
import QtQuick.Controls 1.5
import QtQuick.Dialogs 1.1
import QtQuick.VirtualKeyboard 2.4
import QtQuick.Controls.Styles 1.4

Item  {
    ......
    TextInput  {
        ......
        Component.onCompleted:  {
            ......
            setupKeys(inputPanel.keyboard)
        }
    }

    InputPanel {
        id: inputPanel
        ........
    }
}

[NightFury]

Which is the even generated when we press the "1/2" key in virtual keyboard ?

I see the signal for all others keys but when I click this it generates no event.
I use below code in qml to check :

TextInput{
    ....
    Keys.onPressed: {
        console.log("Current KEY pressed :",event.key)
    }
}