Problem QWizardPage not modal

[Rooster1]

hi all,
I've qt 4.4.0
On my QWizard I want to set a NOT MODAL QWizardPages, to take some values from qmainwindows behind the qwizardpage.
I cannot make this.
If I call cc.show() nothing is visualized, I must use cc.exec() but it creates a modal Dialog

I attach a piece of code

void MissionTree_Control::wizard_Show()
{
    ClassWizard cc(m_parent);
    // cc.exec();
    cc.show();
    std::cout<<";-)"<<std::endl;
}
 
ClassWizard::ClassWizard(QWidget *parent) : QWizard(parent)
{
    addPage(new Intro_Page);
    addPage(new GCS_Page);
    setWindowTitle(tr("Mission definition"));
    setWizardStyle(QWizard::ModernStyle);
}
 
 
Intro_Page::Intro_Page(QWidget *parent): QWizardPage(parent)
{
    setWindowModality(Qt::WindowModal);
    setTitle(tr("..."));
    setPixmap(QWizard::WatermarkPixmap, QPixmap("..."));
    ...
}
 
GCS_Page::GCS_Page(QWidget *parent): QWizardPage(parent)
{
    setWindowModality(Qt::NonModal);
    setTitle(tr("..."));
 
}

void MissionTree_Control::wizard_Show()
{
    ClassWizard cc(m_parent);
    // cc.exec();
    cc.show();
    std::cout<<";-)"<<std::endl;
}

ClassWizard::ClassWizard(QWidget *parent) : QWizard(parent)
{
    addPage(new Intro_Page);
    addPage(new GCS_Page);
    setWindowTitle(tr("Mission definition"));
    setWizardStyle(QWizard::ModernStyle);
}


Intro_Page::Intro_Page(QWidget *parent): QWizardPage(parent)
{
    setWindowModality(Qt::WindowModal);
    setTitle(tr("..."));
    setPixmap(QWizard::WatermarkPixmap, QPixmap("..."));
    ...
}

GCS_Page::GCS_Page(QWidget *parent): QWizardPage(parent)
{
    setWindowModality(Qt::NonModal);
    setTitle(tr("..."));

}

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