BOOL Create(const char FAR* lpFilename = NULL );
lpFilename
Points to a null-terminated character string. Names an existing metafile on disk to load. If lpFilename is NULL, a new in-memory metafile is created.
You construct a CMetaFileDC object in two steps. First, call the constructor CMetaFileDC, then call Create, which creates the Windows metafile device context and attaches it to the CMetaFileDC object.
TRUE if the function is successful; otherwise FALSE.
CMetaFileDC::CMetaFileDC, ::CreateMetaFile