Copyright © 1987 by Xerox Corporation. All rights reserved.

Edited by Mike Schroeder, March 19, 1983 2:36 pm

Hal Murray May 7, 1985 6:43:57 pm PDT

Ron Weaver February 9, 1987 2:30:14 pm PST

IMPORTS

Buttons, Containers, Labels, Menus, Rules, ViewerIO, ViewerOps, ViewerTools, GVNames, BasicTime, FS, IO, RedBlackTree, Rope

CONTROL GVInvert = BEGIN

HistogramImpl;

GVInvert;