> And the situation is more complex again on Mac, where the file type byte is > retained in some files for backward compatibility with pre-OS X OS versions, > which built an invisible database that matched files with their home > application, but OS X (Unix under the covers) also takes a file name extent > into consideration. (And on OS X you can have up to half a dozen apps that > can open, say, a PDF.)
Hmmm .... I would have thought (but not certain) that the current OS X release did not use the file name extension to select the app for opening PDF files. It _probably_ looks at the magic bytes just like other UNIX systems. Which, in the case of PDF files, would be the leading bytes "%PDF-" inside the files. A question though: if you have more than one app available to open a PDF file, how does OS X actually select which app to use? In Windows, there is one default for each extension, but you can override that with a right-mouse-click on the file in Explorer, followed by a "Open With ..." and then select/specify the app. Z _______________________________________________ You are currently subscribed to framers as [email protected]. Send list messages to [email protected]. To unsubscribe send a blank email to [email protected] or visit http://lists.frameusers.com/mailman/options/framers/archive%40mail-archive.com Send administrative questions to [email protected]. Visit http://www.frameusers.com/ for more resources and info.
