Including Images
You can include an image in an HTML output with the PRINT-IMAGE command or the html_img procedure. Both of these produce the <IMG> HTML tag.
The PRINT-IMAGE command displays images for all printer types but enables you to specify only the image type and source. The html_img procedure displays images only for the HTML printer type, but it enables you to specify any of the attributes that are available for an <IMG> HTML tag.
For HTML output, you can use only Graphics Interchange Format (GIF) or JPEG files. With PRINT-IMAGE, use the TYPE=GIF-FILE or TYPE=JPEG-FILE argument, respectively.