C.1.4 Standard Presentation Object Storage Layout

Windows

OLE Version # Format ID = 5 Class String Width in mm-himetric Height in mm-himetric Presentation data size in Bytes Presentation Data
Long Long Variable Long Long Long Variable

Macintosh

OLE Version # Format ID = 5 Class String Width in mm-himetric Height in mm-himetric Presentation data size in Bytes Presentation Data
Long Long Variable Long Long Long Variable

For Windows, the class string is METAFILEPICT, BITMAP, or DIB; the client DLL is able to render these types of presentation data. For the Macintosh, the class string can only be METAFILEPICT.