"The default implementation of this method retrieves the information
from a global dictionary keyed by the receiver’s pointers.
For improved performance, this method can be overridden to retrieve
the opaque data pointer in an instance variable. Overrides of this
method must not attempt to send Objective-C messages to the stored
data, including retain and release."
So it doesn't say it's an opaque pointer. Just that you can override
this method to return an opaque pointer.
On May 28, 2007, at 1:54 PM, Diederik Hoogenboom wrote:
Use [object observationInfo] which returns an array with
dictionaries, one for each observer:
-observationInfo is declared to return a void *. This is documented
as an opaque value. Design and ship code which relies on the
current implementation details at your own peril.
Jim
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