




The function convert-external-image returns an image derived from 
external-image
. The image is ready for drawing to the given graphics port. 
If 
cache
 is non-nil image conversions are cached in the 
external-image
. The default value of 
cache
 is nil.
If 
force-new
 is non-nil a new image is always created, and put in the cache. The default value of 
force-new
 is nil.
CAPI User Guide and Reference Manual (Windows version) - 3 Aug 2017