setProp question

Alex Tweedly alex at tweedly.net
Tue Oct 16 13:13:05 CEST 2018


I don't know of a way to intercept them, and I did look, because I 
have/had exactly the same problem.

I wrote a script (ExplicitProperties) which does a decent, but 
imperfect, attempt to find places you have referenced a customprop, and 
checks whether it is a "known" one. That was back in 2012, and I haven't 
used it much in the meantime, so I don't know what the latest ersion of 
LC it has been tested / used with - but it was useful to me then.

You can find it at 
http://www.tweedly.org/showpage.lc?page=ExplicitProperties with an 
explanation of what it does.

So, you very reasonably ask, why does the author no longer use it ? :-)

Well, I just gave up on using custom properties completely. Probably not 
the right thing to do, but it works for me.

Alex.


On 16/10/2018 08:49, Neville Smythe via use-livecode wrote:
> Is there any way to intercept setProp messages for properties you *don’t* want to set?
>
> I find with my poor typing skills I keep typing
>
> Set the <NonexistentProperty> of <something>
>
> where NonexistentProperty is a mistype of SomePropertyWhichHasASetPropHandler
>
> and so I keep creating lots of superfluous properties for the object. Annoying and sometime painful to clean up.
> When you are initially creating the object properties this is not a problem but once the structure is set up I'd like to declare “enough”, maybe with a LockProperties command
> (come to think of it locking changes to existing properties might be useful too, though that can be coded into each SetProp handler)
>
> Also, on another topic: my LiveCode windows have suddenly acquired a second title line, which when dragged tends to miniaturise the window and then display it somewhere else or at full screen, and each time a script editor window is opened it is moved higher up the screen until it moves under the menubar and becomes unusable. Looks look a system thing (Mac High Sierra) but I’ve never seen it before and only just changed to LC9.0.1. Any suggestions as to how to stop this major annoyance would be appreciated - or at least configure it if it really is a new LC ”feature".
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