COMMAND SHOWIMAGE
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    Purpose: show an image on the Workbench-Screen
      Usage: showimage(<objectID>[,<file-name>])
    Example: showimage(1,ram:pic)
      Notes: Because Dust only uses PPM-files you have to
             set up the parameter MODULEDIR if you want to
             have automatic conversion of IFF-images.

See also DISPLACE and Parameters (MODULEDIR).