Two functions of QProgressBar are not const, so it is not possible to retrieve them in a const environment QProgressBar::invertedAppearance() QProgressBar::textDirection()

Two functions of QProgressBar are not const, so it is not possible to retrieve them in a const environment
QProgressBar::invertedAppearance()
QProgressBar::textDirection()

example:
int myFunction(const QProgressBar& ProgressBar)
{
bool Info1 = ProgressBar.invertedAppearance();
QProgressBar::Direction Info2 = ProgressBar.textDirection();
}

.\source\html_operator.cpp(15) : error C2662: 'QProgressBar::invertedAppearance': this-Zeiger kann nicht von 'const QProgressBar' in 'QProgressBar &' konvertiert werden
.\source\html_operator.cpp(16) : error C2662: 'QProgressBar::textDirection': this-Zeiger kann nicht von 'const QProgressBar' in 'QProgressBar &' konvertiert werden

Qt::Alignment alignment () const
QString format () const
bool invertedAppearance () !!! const missing
bool isTextVisible () const
int maximum () const
int minimum () const
Qt::Orientation orientation () const
virtual QString text () const
QProgressBar::Direction textDirection () !!! const missing
int value () const