Convert an
external-image
to an object of type
image
ready for drawing to a port in several ways as described in Loading images. Such conversions are cached but you can remove the caches by
clear-external-image-conversions
.
You an also convert an
image
to an
external-image
by calling
externalize-image
.
CAPI User Guide (Macintosh version) - 30 Aug 2011