path of a 'closeStackRequest'

[Graham Samuel]

I must be doing something really dumb, but I don't understand what. In the app I'm developing (Revo 1.1.1 on MacOS 9.2.2), I have a mainstack and a number of substacks. I appear to be getting more than one 'preOpenStack' message to my main stack, which since my intention is only to open it once during the whole life of my app, is causing me considerable bother.

In the absence of a path-tracing feature in the debugger, I therefore put this handler into my mainstack:

on closeStackRequest
answer (the short name of the target)&&"is trying to close the Anchor stack"
pass closeStackRequest
end closeStackRequest

and went back to testing. I found that when I closed a substack by clicking on its close box, the handler in the mainstack got called, with the target being the first card of the substack. There is no stack script in the substack. What's going on? It looks as if the 'closeStackRequest' for the substack has got into the message path for the mainstack and is being applied to the mainstack, but why? If I want to allow closing of some substacks, either by scripting or by my user without affecting the mainstack, what do I do?

All explanations gratefully received, and as usual any pointers to existing documentation on the subject (I am more than happy to read up on this stuff, but I am often puzzled as to where to look).

TIA

Graham
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Graham Samuel / The Living Fossil Co. / UK & France
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