Restricting save to supported types

FROM : Jeff Disher
DATE : Fri Nov 22 16:25:01 2002

Hello,

I have a Document based app that reads and writes images.  I have
everything properly set up in the plist accepting several types as
viewer but only png as editor.  The problem I have is that, if I open a
tiff with the program and save it with save as, it will ask my
NSDocument sub-class for data of type tiff which my program does not
support as an export.  This is very annoying and I don't think that it
should be happening.

I seem to recall seeing this mentioned on the list before but couldn't
find it in the archives.  If anyone has the answer or a link to where I
could read about it in the archives, please drop me a line.

Thanks,
Jeff.