how to detect if a file is a metacard stack or not

[Reinhold Venzl-Schubert]

Hi!

I wrote the following script to simplify the selection of a metacard  
stack to import it into my learning software:

   if the platform is MacOS then
     answer file "Wählen sie eine Datei zum Importieren aus:" with  
type "MSTK"
   end if
   if the platform is Win32 then
     answer file "Wählen sie eine Datei zum Importieren aus:" with  
"*.mc"
   end if

But when I pack an importfile as a zip, send it to my homepage and  
load it down again, the learning software don't detect it anymore. I  
think the type MSTK get lost on the way.

Therefore I threw out  the part   ... with type "MSTK"

But when I try to import a pdf-file for example I get a execution  
error in this line

   put the effective filename of stack ImportStack into StartMediaFolder

Now I need a script that checks if the file is a metacard stack.

If the ImportStack is not a stack then exit ...

Do anybody know a good script?

Thanks
Reinhold




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