Print preview in QWebEngineView not working

minocodi

Hello , this is my first Question i hope i get an answer to it .
( you may excuse me , my English is not so good :) )

i have a web application for Queue manager and i want to display the screen part
( where the costumer click on a chosen operation and he get a printed small ticket )
on full screen mode , so i made a python QT5 web browser

import sys

from PyQt5.QtCore import QUrl
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5.QtGui import QIcon

from xml.dom import minidom
xmldoc = minidom.parse('config.xml')
itemlist = xmldoc.getElementsByTagName('item')

app = QApplication(sys.argv)

wv = QWebEngineView()
wv.setWindowTitle('QueueManager')
wv.setWindowIcon(QIcon('favicon.ico'))

if itemlist[1].attributes['mode'].value=='fullscreen' :
    wv.showFullScreen()
else:
    wv.showMaximized()

wv.load(QUrl(itemlist[0].attributes['url'].value))
wv.show()

app.exec_()

- config.xml contain the url and display mode

until now the program work fine

but when i click on one of the operations there is no preview or ticket in the queue list of the printer

for example in chrome browser the result will be a default preview of the ticket than i decide to print it (pdf or .... )

i just whon't to know if the QWebEngineView allow this functionality ( listen to the print event from the loaded html page and trigger the printer device)
if yes, should i add some configuration or some modules to tested ?

i hope i explained my problem well !