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remove-observer

Function
Summary

Removes an observer from a notification center.

Package

cocoa

Signature

remove-observer target &key name object center

Arguments

target

A pointer to an Objective-C foreign object.

name

A string or nil .

object

A pointer to an Objective-C foreign object or nil .

center

A notification center.

Description

The function remove-observer calls the Objective-C instance method "removeObserver:name:object:" of centre to remove target as an observer with the given name and object , which both default to nil .

If center is omitted then it defaults to the default notification center.

See also

add-observer


LispWorks Objective-C and Cocoa Interface User Guide and Reference Manual - 29 Feb 2008

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