// remove all pages
bool DeleteAllPages();
// adds a new page to the notebook (it will be deleted ny the notebook,
// don't delete it yourself). If bSelect, this page becomes active.
// the same as AddPage(), but adds it at the specified position
// remove all pages
bool DeleteAllPages();
// adds a new page to the notebook (it will be deleted ny the notebook,
// don't delete it yourself). If bSelect, this page becomes active.
// the same as AddPage(), but adds it at the specified position