2 GP Reference Entries

convert-external-image

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

Theconvert-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-devicea 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*.