Abstract of INFO-MAC archived encoded Mac binary file
   'dev/card/drag-select-rect-xfcn-11.hqx'
  Uploaded 07/26/1996   35738 bytes

From: (Perry Barton) pbarton@cris.com
Subject: DragSelectRect XFCN 1.1

The latest version of DragSelectRect (1.1).  Replaces 1.0 and 1.0.1.

DragSelectRect is an XFCN which enables you to drag a gray or "marching
ants" selection rectangle within the card window of your stack, returning
the local or global coordinates of that rectangle.