有没有办法在QPrintPreviewDialog中返回当前浏览过的页面？

from PyQt5.QtWidgets import QApplication, QPrintPreviewDialog, QPrintPreviewWidget, QVBoxLayout
from PyQt5.QtCore import Qt

def handleCurrentPageChanged(pageIndex):
    print("当前浏览的页面：", pageIndex)

app = QApplication([])
previewDialog = QPrintPreviewDialog()
previewWidget = QPrintPreviewWidget(previewDialog)
layout = QVBoxLayout(previewDialog)
layout.addWidget(previewWidget)
previewDialog.setLayout(layout)

previewWidget.currentPageChanged.connect(handleCurrentPageChanged)

# 加载打印预览内容
# ...

previewDialog.exec_()