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Re: objectspecifiers question (very basic)
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Re: objectspecifiers question (very basic)


  • Subject: Re: objectspecifiers question (very basic)
  • From: has <email@hidden>
  • Date: Fri, 27 Oct 2006 12:27:42 +0100

Michael wrote:

I know this is apple-script...but may I ask a really simple question.

The AS Implementors list is probably more appropriate for this sort of stuff, but anyway...



What do the terms "want, form, seld"  of the object specifiers
actually stand for; or another way of asking is how does "seld" end
up meaning the actual specifier, want the class of object and form,
well that's a little easier to guess...I think ?

'want' = four-char-code indicating desired element(s)'s class code (e.g. 'docu' = document), or 'prop' if it's a property specifier


'from' = an object specifer identifying container object(s)

'form' = four-char-code indicating how the element(s) should be selected (by index ['indx'], name ['name'], etc.), or 'prop' if it's a property specifier

'seld' = selector data (e.g. in a by-name specifier, this would be a string)


Inside Macintosh: Interapplication Communication has all the gory details:


http://developer.apple.com/documentation/mac/IAC/IAC-2.html

It's pretty ancient and some parts no longer apply in OS X - e.g. the comms toolbox chapter - but if you've a burning need to know the lower-level details (or are just seeking relief from chronic insomnia) it's still the one to read.


BTW, can I ask what's your interest in this stuff?

has
--
http://freespace.virgin.net/hamish.sanderson/
http://appscript.sourceforge.net
http://rb-appscript.rubyforge.org


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