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Re: readonly parameter not updating?
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Re: readonly parameter not updating?


  • Subject: Re: readonly parameter not updating?
  • From: William Stewart <email@hidden>
  • Date: Fri, 9 Nov 2007 12:25:36 -0800

You have what we call a Meta parameter - that is changing the value of this parameter can change the value of other parameters. So, you should be flagging this parameter as a meta parameter. Also, you can describe to the systems which parameters your meta parameter can change, which can lead to some nice efficiencies. AudioUnitProperties.h has some more info.

Bill

On Nov 8, 2007, at 10:03 PM, Kevin Dixon wrote:

I have a couple of parameters that I want to just display values to the
user, they are edited based on some other parameter's values. I have
SetParameter updating these extra info parameters when the controlling
parameter changes.


When the display parameters only have the flag _IsReadable, the display
does not update. If I have it _IsReadable | _IsWritable the sliders move
as the controlling slider moves.


As I've read, read only parameters are supposed to be used to present the
user with info, how do I get the read only parameters to update?


Thanks,

-Kevin Dixon
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  • Follow-Ups:
    • Re: readonly parameter not updating?
      • From: "Kevin Dixon" <email@hidden>
References: 
 >kAudioUnitProperty_PresentationLatency supported in LogicPro 7.2 and/or 8? (From: "I. K." <email@hidden>)
 >readonly parameter not updating? (From: "Kevin Dixon" <email@hidden>)

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