void UIWizardCloneVDPageExpert::sltMediumFormatChanged()
{
    /* Get medium format: */
    CMediumFormat mf = mediumFormat();
    if (mf.isNull())
    {
        AssertMsgFailed(("No medium format set!"));
        return;
    }

    /* Enable/disable widgets: */
    ULONG uCapabilities = 0;
    QVector<KMediumFormatCapabilities> capabilities;
    capabilities = mf.GetCapabilities();
    for (int i = 0; i < capabilities.size(); i++)
        uCapabilities |= capabilities[i];

    bool fIsCreateDynamicPossible = uCapabilities & KMediumFormatCapabilities_CreateDynamic;
    bool fIsCreateFixedPossible = uCapabilities & KMediumFormatCapabilities_CreateFixed;
    bool fIsCreateSplitPossible = uCapabilities & KMediumFormatCapabilities_CreateSplit2G;
    m_pDynamicalButton->setEnabled(fIsCreateDynamicPossible);
    m_pFixedButton->setEnabled(fIsCreateFixedPossible);
    m_pSplitBox->setEnabled(fIsCreateSplitPossible);

    /* Compose virtual-disk extension: */
    m_strDefaultExtension = defaultExtension(mf);

    /* Broadcast complete-change: */
    emit completeChanged();
}
int UIWizardNewVDPageBasic1::nextId() const
{
    /* Show variant page only if there is something to show: */
    CMediumFormat mf = mediumFormat();
    if (mf.isNull())
    {
        AssertMsgFailed(("No medium format set!"));
    }
    else
    {
        ULONG uCapabilities = 0;
        QVector<KMediumFormatCapabilities> capabilities;
        capabilities = mf.GetCapabilities();
        for (int i = 0; i < capabilities.size(); i++)
            uCapabilities |= capabilities[i];

        int cTest = 0;
        if (uCapabilities & KMediumFormatCapabilities_CreateDynamic)
            ++cTest;
        if (uCapabilities & KMediumFormatCapabilities_CreateFixed)
            ++cTest;
        if (uCapabilities & KMediumFormatCapabilities_CreateSplit2G)
            ++cTest;
        if (cTest > 1)
            return UIWizardNewVD::Page2;
    }
    /* Skip otherwise: */
    return UIWizardNewVD::Page3;
}