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invalidate-rectangle

Function
Summary

Invalidates the rectangle associated with the object, which causes it to be redisplayed.

Package

graphics-ports

Signature

invalidate-rectangle object &optional x y width height
=> result

Arguments

object

An instance of a subclass of graphics-ports-mixin or a subclass of pinboard-object.

x

A real number.

y

A real number.

width

A real number.

height

A real number.

Values

result

A boolean.

Description

By default it invalidates the whole rectangle, but this can be limited by passing the &optional arguments.

See also

validate-rectangle


LispWorks CAPI Reference Manual - 25 Jul 2006

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