SelectedTabIndex
index = fTabManager->SelectedTabIndex();
&& fTabManager->SelectedTabIndex() != index
int32 index = fTabManager->SelectedTabIndex() + 1;
int32 SelectedTabIndex()
if (i == fTabContainerView->SelectedTabIndex())
int32 SelectedTabIndex() const;
int32 selected = fContainerView->SelectedTabIndex();
bool isFront = index == fContainerView->SelectedTabIndex();