[Semi-OT] Gestures in Cocoa AU Views
[Semi-OT] Gestures in Cocoa AU Views
- Subject: [Semi-OT] Gestures in Cocoa AU Views
- From: Pavol Markovic <email@hidden>
- Date: Mon, 10 Oct 2005 11:02:31 +0200
Sorry for being OT, this is probably more Cocoa question.
I once played with Cocoa AU views and one thing that I've seen as
problem was posting control/parameter's begin and end gestures. I
remember in older CoreAudio SDK there was proposal for getting
parameter ID according to mouse coordinates but it was pulled off
later.
Then I thought about using NSNotifications and converting them into
Carbon AUEvents. But I run into problem when two and more AUs have
opened the view at the same time. Then there were multiple notification
listeners and they responded simultaneously to mouse events. What was
even worse, two different AUs using same code base might respond.
Because it was only research project I've frozen it, but today I've
looked into latest SDK examples (Filter) and I found out that the same
concept (NSNotification with default notification center) is used here.
I haven't tried it yet, but I guess it suffers from the same problem.
Is there any other way to do this - for example creating private
notification center?
Thanks for suggestions,
Pavol Markovic
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