Graphics Ports supports Bitmaps and compressed bitmaps (BMP and DIB files). It uses Operating System-specific libraries to support a range of other image types as follows:
Functions which load images from a file attempt to identify the image type from the file type. Files of type
are loaded by LispWorks code, files of other types are loaded by the Operating System-specific library.
Note: On Motif LispWorks uses the freeware
library which seems to be in all Linux distributions. However it is not in some UNIX systems, so you may need to install it.
Note: On Microsoft Windows LispWorks additionally supports Windows Icon files - see
LispWorks CAPI Reference Manual
Note: LispWorks 4.3 and previous versions supported only Bitmap images.