Engine 3.0 gm3 unable to open legacy stacks on MacOS?

[Wilhelm Sanke]

Klaus Major wrote:

>> Another question: Is there a way to start the 3.0 engine inside the 
>> MC IDE and coming up as "Metacard" (like it was possible with earlier 
>> versions)? After I rename the "Revolution" file deep down in the OS 
>> bundle it refuses to start.
>
>
> You will also have to change some strings in the "info.plist" inside 
> the app bundle! I can send you an "empty" app bundle without the 
> actual engine, if you like.
>
> Then you will only have to put the Rev engine into it, rename it to 
> "MetaCard" as you did
>
> and that will do the trick.



Thank you, Klaus! Works like a charm.

As I not a permanent and exclusive user of MacOS I need to learn a lot 
about the new structural elements and especially about "plists".

Putting the Rev engine into the contents/MacOS folder of the bundle you 
sent me first produced an error message (in German on my machine) 
stating that this program is not supported by the architecture. But as 
you indicated, the engine has to be renamed to "MetaCard" and then all 
is fine, even a Metacard icon shows.

But apparently there are more ways to do this. Again following your 
advice above about changes to the plist file, I tried that before your 
bundle arrived here, i.e. I did just that in the folder into which I had 
put the complete Rev bundle along with the MC IDE. Here engine and MC 
IDE are started, only the tool bar shows "Revolution" as the program.
I edited the plist in only two places and renamed from Revolution to 
MetaCard

- CFBundleExecutable  and
- CFBundleName

and now "Metacard" is displayed in the tool bar - *without* having 
changed the name of the engine from Revolution to MetaCard. If I rename 
the engine to "MetaCard" then the program does not start in this case.

The only thing that differs from your bundle solution is that with my 
"plist-changes only" the Metacard bundle shows a generic application 
icon with an "A" in the icon.

Once again, thanks for your help.

Wilhelm