<> <> DIRECTORY ImagerPixelMaps; ImagerFrameBuffer: DEFINITIONS ~ BEGIN LFDisplay: PROC RETURNS [ImagerPixelMaps.PixelMap]; ColorDisplay8: PROC RETURNS [colorDisplay: ImagerPixelMaps.PixelMap]; GrayScaleDisplay8: PROC RETURNS [colorDisplay: ImagerPixelMaps.PixelMap]; ColorDisplayError: ERROR [reason: ATOM]; END.