How does 'Create Folder' give its result?

[Graham Samuel]

I have a path in a variable say myPath, and I execute

create folder myPath

sometimes the folder can't be created (if the directory is protected  
etc) and if I execute the above in the message box in these  
circumstances, I see the text

   can't create that directory

But if I do this by script, this text doesn't seem to be in 'the  
result' or in 'it' (which appears to contain 'OK' even if the create  
hasn't worked), so where is this text - ? The 2.7.0 docs (dictionary  
and PDF) are silent on the matter. As 'create' is not a function, I  
don't see any other way for it to return a value.

Clearly I can produce a workaround by checking if the folder exists  
immediately after trying to create it, but how does 'create' show its  
result"?

TIA

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