Re: emulate alt-drag in IB

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#1864

From: Gregory H. Anderson
Date: Thu, 19 Nov 1992 16:28

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In article <1992Nov17.062956.11676@monu6.cc.monash.edu.au>  
ede978e@monu6.cc.monash.edu.au (Robert D. Nicholson) writes:
> How does IB decide wether the user can alt-drag on an object to
> create a matrix of the selected object?
> 
I think the rule is that it has to be a Control that contains a subclass  
of ActionCell (which all current Controls do). In other words,

([object isKindOf:[Control class]] && 
  [[object cell] isKindOf:[ActionCell class]])

must return YES. Because IB then initializes a Matrix with the Control's  
cell as its protoCell.

--
Gregory H. Anderson          | Thus spake the master programmer: 
Master Programmer / Manager  | "Let the programmers be many and  
Anderson Financial Systems   | the managers few; then all will be 
greg@afs.com  (Nextmail OK)  | productive." -- Tao of Programming

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Message-ID: <1992Nov19.162839.417@afs.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!psinntp!afs!greg

References: <1992Nov17.062956.11676@monu6.cc.monash.edu.au>

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Newsgroups: comp.sys.next.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!psinntp!afs!greg
From: greg@afs.com (Gregory H. Anderson)
Subject: Re: emulate alt-drag in IB
Message-ID: <1992Nov19.162839.417@afs.com>
Sender: greg@afs.com
Reply-To: greg@afs.com
References: <1992Nov17.062956.11676@monu6.cc.monash.edu.au>
Date: Thu, 19 Nov 1992 16:28:39 GMT
Lines: 19

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