On Microsoft Windows, CAPI metafiles now support GDI+ drawing. They also support a combined GDI and GDI+ format. Use this "dual" format if the metafile may be used in a context where only GDI (and not GDI+) is available, but you want the quality of GDI+ where possible.
See the
format
values
:enhanced
,
:enhanced-plus
and
:enhanced-gdi
in
capi:with-external-metafile
and
capi:with-internal-metafile
.
LispWorks Release Notes and Installation Guide - 23 Dec 2011