




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 
bmp
 and 
dib
 are loaded by LispWorks code, files of other types are loaded by the Operating System-specific library.
Note: LispWorks 4.3 and previous versions supported only Bitmap images.
Note: On X/Motif LispWorks uses the freeware 
imlib
 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 Windows LispWorks additionally supports Windows Icon files - see 
load-icon-image
 below.