ocr: Figure 9 Viewer Frameuork Functions Interfaces and functions mplemonted by CFileViewer Unknown mplemented by CCmdTarget. PorststFile GetClassio Returns E NOTIMPL. IaDirty Returns S. FALSE Viewers can enly view, never. modify iL Miel. Load Track state, pess to SMRIeNeTAPR-ONLANd Save Returns E_NOTIMPL SaveCompleted deturns ENOTMPL GetCurfile Calle CFileviewerApp.Undetrilename to et the current filename 85 a String, hen convertsitto OLESTR betore retorning it. IFileviewer Showlnitianze Track etate and save ppounter to Pileviewersite before passing to: CFloViewerApp.UnShowinitialize. Show Track s ...