void FIntroTutorials::MainFrameLoad(TSharedPtr<SWindow> InRootWindow, bool bIsNewProjectWindow) { if (!bIsNewProjectWindow) { // install a root widget for the tutorial overlays to hang off if(InRootWindow.IsValid() && !TutorialRoot.IsValid()) { InRootWindow->AddOverlaySlot() [ SAssignNew(TutorialRoot, STutorialRoot) ]; } // See if we should show 'welcome' screen MaybeOpenWelcomeTutorial(); } }