I looked up NewEventHandlerUPP in the Leopard headers, and it's
similar to what you've shown below. What's odd is that it's still in
the API docs (and online at ADC), and not listed or marked as
deprecated.
What is also not shown anywhere is whether the same is true under
earlier OSs. The definitions like you've shown are not in the old
headers, so I was curious whether those calls are needed for Mach-O
in Tiger.
So, as a test, I replaced all my NewEventHandlerUPP calls, using just
the procedure name instead, and removed the DisposeEventHandlerUPP
calls, and everything's still working fine in my Mach-O bundle app
compiled and run in Tiger.
Verrrry interesting...
Seems to me this should be documented somewhere, eh?
-Howard
On Nov 28, 2007, at 9:50 AM, John Stiles wrote:
Here's a random example pulled from the Leopard Carbon headers.
Where do you get that info from? I still see NewEventHandlerUPP
in their API docs, and it's not listed as deprecated, and doesn't
contain any notes suggesting it's not needed. If indeed it's no
longer needed, I'd sure like to see where that's stated.
-Howard
I believe that if you're building a Mach-O app, Apple has
explicitly stated that the UPP calls do nothing, don't need to be
used, and they even became no-ops in the Leopard headers.
I haven't verified this, it's just what I've heard.
A UPP is a structure that wraps a function pointer. As such,
you only need it once for every function. What people generally
do is define a UPP as static to a function, and then they can
allocate it once, re-use it, and it gets disposed with the rest
of the application on shutdown.
That said, many of the UPP calls compile down to no-ops on OS
X, because they were mainly invented for calling 680x0 function
on PowerPC Macs, and thus in many cases you can just pass a
straight ProcPtr into UPP-expecting APIs.
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