QWinThumbnailToolBar not visible ..?

[Franckynos]

Hi everybody,

I have a problem with QWinThumbnailToolBar.

Define like this :

   QWinThumbnailToolBar * thumbnailToolBar = new QWinThumbnailToolBar(this);
    thumbnailToolBar->setWindow(windowHandle());

    QWinThumbnailToolButton *quitButton = new QWinThumbnailToolButton(thumbnailToolBar);
    quitButton->setToolTip(tr("Quit"));
    quitButton->setIcon(QIcon(":/icones/shutIco"));
    connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));

    QWinThumbnailToolButton *settings = new QWinThumbnailToolButton(thumbnailToolBar);
    settings->setToolTip(tr("Settings"));
    settings->setIcon(QIcon(":/icones/images/bouton paramètres.png"));
    settings->setDismissOnClick(true);
    connect(settings, SIGNAL(clicked()), this, SLOT(parametre()));

    QWinThumbnailToolButton* space = new QWinThumbnailToolButton(thumbnailToolBar);
    space->setFlat(true);

    thumbnailToolBar->addButton(quitButton);
    thumbnailToolBar->addButton(space);
    thumbnailToolBar->addButton(settings);

Everythings works fine but when I launch my soft as adminitrator the QWinThumbnailToolBar disappears.

Someone have an idea to solve my problem ?

Thanks.

[Franckynos]

Someone have an idea ?