Cannot deserialize QWebHistory from QDataStream

[andryr]

Hi,
I am coding a web browser using QtWebKit and i want to save the QWebHistory from my QWebView in a file. But i'm facing a problem : i can serialize QWebHistory in a file easily but i can't deserialize !
I've tried to proceed like that :

QDataStream stream(&file);
    file.open(QIODevice::ReadOnly);
    QWebView *dest = new QWebView;
    QWebHistory *history = dest->history();
    stream >> *(history);
    file.close();

QDataStream stream(&file);
    file.open(QIODevice::ReadOnly);
    QWebView *dest = new QWebView;
    QWebHistory *history = dest->history();
    stream >> *(history);
    file.close();

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But I got a SIGSEV
and I've tried that :

QDataStream stream(&file);
    file.open(QIODevice::ReadOnly);
    QWebView *dest = new QWebView;
    QWebHistory history = *(dest->history());
    stream >> history;
    file.close();

QDataStream stream(&file);
    file.open(QIODevice::ReadOnly);
    QWebView *dest = new QWebView;
    QWebHistory history = *(dest->history());
    stream >> history;
    file.close();

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But here I got an error while compiling : QWebHistory::QWebHistory() is private
It seems like we can't deserialize QWebHistory but the documentation says that we can !
Thank ahead for your replies