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Quote: Sketchpad tracks the pseudo pen location, a bright dot at the nearest drawing part; used for drawing operations
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Topic:
selecting with a mouse
Topic:
other pointing devices
Quotation Skeleton
When the light pen is aimed at a … pen location" exactly on the part aimed at. … The pseudo pen location is displayed as a … the light pen is moved [near a drawing] … the dot will lock on the existing parts … Google-1 Google-2
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Topic: selecting with a mouse (44 items)
Topic: other pointing devices (15 items)