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Re: Question on cocoa style: value for (id)sender parameter

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Re: Question on cocoa style: value for (id)sender parameter

Subject: Re: Question on cocoa style: value for (id)sender parameter
From: Larry Fransson <email@hidden>
Date: Mon, 24 Jan 2005 13:10:05 -0800

On Jan 24, 2005, at 12:24, Matt Gillette wrote:

[aSheet orderOut:NULL];
[aSheet orderOut:self];
Is there any advantage to null/nil versus self? What is the sender variable used for?

There may be occasions, particularly in IBAction methods that you write, where the action taken might depend on what is triggering the action. The sender parameter allows you to figure out what is triggering the action so that you can decide what to do.

Larry Fransson
Seattle, WA

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