main.cpp

#include <QApplication>
#include <QWebView>
#include <QWebPage>
#include <QUrl>

class WebView : public QWebView
{
    Q_OBJECT
public:
    WebView(QWidget *parent = 0);
};

class WebPage : public QWebPage
{
    Q_OBJECT
public:
    WebPage(QObject *parent = 0) : QWebPage(parent) {
    }

    virtual QWebPage *createWindow(QWebPage::WebWindowType)
    {
        QWebView *view = new WebView();

        return view->page();
    }
};

WebView::WebView(QWidget *parent) : QWebView(parent) {
    setPage(new WebPage(this));
    connect(this->page(), SIGNAL(windowCloseRequested()), this, SLOT(deleteLater()));
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    WebView view;

    QWebSettings::globalSettings()->setAttribute(QWebSettings::DeveloperExtrasEnabled, true);
    view.load(QUrl("http://help.dottoro.com/external/examples/ljdlgxbu/showModalDialog_1.htm"));
    view.show();

    return a.exec();
}

#include "main.moc"