[sadie]

This is purely theoretical, prompted by this topic...

Is there any way for an app (carbon or cocoa) to explicity use Classic code? To load up pieces of code from an oldprogram, or from known resources, and to run them via Classic mode?

[aleph_null]

I think the best you could hope for, right now, is to send Apple Events to a classic application. You can't load non-Carbon code fragments in the Carbon runtime on X and just run them -- the non-Carbon APIs will absolutely crash horribly.

But for a screensaver kinda thing, the Apple Events method might be sufficient, except for screensaver games like... oh, fooey. I forgot the name of that AfterDark saver that was like asteroids or something... anyway.

Regardless, without the AfterDark source, writing the Classic app shell for the modules would be near-impossible, I'd guess.

[Angus_D]

No, you can't. It is a physical impossibility to link against both CarbonLib and InterfaceLib at the same time, and so on.

[sadie]

I was thinking more like running something separately inside the Classic environment and using inter-app communications to interface between them. Then the screensaver trigger in X could be passed through to the Classic program.

Is that possible? Is there any option for IPC between Cocoa and Classic?

[aleph_null]

Originally posted by sadie:
<STRONG>I was thinking more like running something separately inside the Classic environment and using inter-app communications to interface between them. Then the screensaver trigger in X could be passed through to the Classic program.

Is that possible? Is there any option for IPC between Cocoa and Classic?</STRONG>

I guess I wasn't clear. Yes. That part is (AFAIK) possible. The part that probably isn't possible is building the classic app that knows how to deal with the AppleEvents or AppleScript and also how to read whatever legacy screensaver modules you want it to read... unless you have the source. But then you might as well just port it to X.

&lt;tap tap&gt; is this thing on?

[sadie]

aleph_null helpfully added:
<STRONG>The part that probably isn't possible is building the classic app that knows how to deal with the AppleEvents or AppleScript and also how to read whatever legacy screensaver modules you want it to read... unless you have the source.</STRONG>

I don't see why it's impossible - i just see it as a lot of work.

What happened to Berkeley, anyway?