ITLibArtworkFormat.none The image data format is unknown. Declarationcase none See AlsoArtwork FormatsITLibArtworkFormat.bitmapITLibArtworkFormat.JPEGITLibArtworkFormat.JPEG2000ITLibArtworkFormat.GIFITLibArtworkFormat.PNGITLibArtworkFormat.BMPITLibArtworkFormat.TIFFITLibArtworkFormat.PICT