Just a quick one here. I have been trying to hijack the close button that can be enabled on each of the tabs on a QTabWidget. I just wanted to have the close button visible on the active tab. Due to QTabBar being a protected function this is a nice work around for modifying the close button or any other element of QTabWidget.
QTabBar* tabBar = ui.tabs->findChild
From here you'll be able to do a whole range of tasks on a per tab basis.