On Tue, 05 Dec 2006 12:00:40 -0800, Bert Freudenberg
<bert@xxxxxxxxxxxxxxx> wrote:
The difference is that you can send any message to any object, and the
object's class can decide how to handle that method. By default, the
class looks into the dictionary of all defined methods and invokes the
matching method. But it can also decide to handle *any* message,
regardless of which methods are actually defined. This lets you
implement, for example, generic object wrappers that log any message
sent to an object. Or, forward the message over the network to another
image. Or, which is the normal case, raise an exception that this
message was not understood.
Aha. You can do that with Object Pascal, too, though not so directly.
Thanks.
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