How to detect Classic?

[Sarah Reichelt]

I have an app that I built for both PPC & OS X. The 2 systems handle 
file paths differently so I have a routine to convert from one to the 
other depending on "the systemVersion". The problem is that I was 
testing the PPC version using Classic from inside OS X. My conversion 
routine wasn't working so none of the expected files could be found. I 
finally tracked this down to the fact that when running in Classic as 
opposed to having booted into OS 9, the systemVersion still returns 
10.3.2

So the Rev engine thought it was still operating in OS X but insisted 
on OS 9 file paths! Does anyone have any ideas on how to detect when an 
OS 9 app is running in Classic? I guess if not, I'll just have to do 
separate builds for each version with the system type stored in a 
custom property.

Cheers,
Sarah
sarahr at genesearch.com.au
http://www.troz.net/Rev/