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Re: Parameter Notifications
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Re: Parameter Notifications


  • Subject: Re: Parameter Notifications
  • From: Marc Poirier <email@hidden>
  • Date: Tue, 17 Jun 2003 12:16:13 -0500 (CDT)

That's a property, so I presume you would just use PropertChanged in that
case.



On Tue, 17 Jun 2003, Robert Grant wrote:

> Hi Marc,
>
> That helps alot - but what about if the set of value strings for an
> indexed parameter changes? Can that be communicated?
>
> Thanks,
>
> Robert.
>
> On Tuesday, June 17, 2003, at 12:32 PM, Marc Poirier wrote:
>
> > Something like this will do you:
> >
> > AudioUnitParameter dirtyparam;
> > dirtyparam.mAudioUnit = GetComponentInstance();
> > dirtyparam.mParameterID = _theParameterID_;
> > dirtyparam.mScope = kAudioUnitScope_Global;
> > dirtyparam.mElement = 0;
> > AUParameterListenerNotify(NULL, NULL, &dirtyparam);
> >
> >
> >
> >
> > On Tue, 17 Jun 2003, Robert Grant wrote:
> >
> >> Is there any way to signal the UI that parameters have changed? I see
> >> the PropertyChanged() method in AUBase but there's not an equivalent
> >> ParameterChanged(). My backend can change things that affect the
> >> rendering process and I've exposed these as parameters but I'm not
> >> sure
> >> how to let the GUI know. I thought AUBase::SetParameter would do it
> >> but
> >> I don't think it does...
> >>
> >> Thanks,
> >>
> >> Robert.
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References: 
 >Re: Parameter Notifications (From: Robert Grant <email@hidden>)

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