Re: alms for an ex-leper
Re: alms for an ex-leper
- Subject: Re: alms for an ex-leper
- From: Paul Berkowitz <email@hidden>
- Date: Thu, 23 Jan 2003 22:56:17 -0800
On 1/23/03 12:17 PM, "Bill Metzinger" <email@hidden> wrote:
>
I have a droplet/applet that I don't understand it's different behavior.
>
------
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on run
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set A to {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
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set KeyList to A
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set KeyListRef to a reference to KeyList
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display dialog (a reference to item 1 of KeyListRef)
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end run
>
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on open
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set A to {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
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set KeyList to A
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set KeyListRef to a reference to KeyList
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display dialog (a reference to item 1 of KeyListRef)
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end open
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--------
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If I try it as a droplet first I get the err "Can't make item 1 of
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KeyList into a string"
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When I launch it I get the dialog "1"
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Then trying the droplet again gives the dialog "1"
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Both work until I save changes to the script, then the droplet options
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gives an err until I launch it again.
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Is this normal?
>
What I'm getting at is that I have a sorting routine that only wants to
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work as an app and not as a droplet.
>
The two seem to handle references differently.
global KeyList
on open
set A to {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
set KeyList to A
set KeyListRef to a reference to KeyList
display dialog (a reference to item 1 of KeyListRef)
end open
--> "1"
'a reference to' likes globals. Otherwise you can do it this way (same speed
advantage as 'a reference to', actually faster, known as "Serge script
objects"):
on open
set A to {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
set KeyList to A
script keyScript
property KeyListRef : KeyList
end script
display dialog (item 1 of keyScript's KeyListRef)
end open
--> "1"
Similarly, in the run handler (explicit or implicit), as fast as handler
script objects and faster than 'a reference to':
on run
set A to {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
set KeyList to A
display dialog (item 1 of my KeyList)
end run
--> 1
which will also work in a handler if you declare Keylist as a global.
--
Paul Berkowitz
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