Function

Summary

Returns an image derived from an external image format.

Signature

convert-external-image gp
 external-image
 &key cache
 force-new
 

                       => image

Arguments

gp

A graphics port

external-image

An external image

cache

A boolean

force-new

A boolean

Values

image

An image

Description

The convert-external-image function returns an image derived from external-image . The image is ready for drawing to the given graphics port. If cache is non- nil images conversions are cached by (color-device a b ) in the external-image where a is the transparent-pixel-index and b the image-background-color of the port. If force-new is non- nil a new image is always created, and put in the cache. By default, cache has the value *cache-external-images-p* .