LispWorks CAPI Reference Manual > 2 GP Reference Entries

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rectangle-width

Macro
Summary

Returns the difference between the left and right elements of a rectangle.

Package

graphics-ports

Signature

rectangle-width rectangle => width

Arguments

rectangle

A rectangle

Values

width

A real number

Description

The rectangle-width macro returns the difference between right and left elements of rectangle .

rectangle is a list of numbers ( left top right bottom ).


LispWorks CAPI Reference Manual - 21 Dec 2009

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