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Re: AudioUnit kAudioUnitProperty_ClassInfo and UI update
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Re: AudioUnit kAudioUnitProperty_ClassInfo and UI update


  • Subject: Re: AudioUnit kAudioUnitProperty_ClassInfo and UI update
  • From: William Stewart <email@hidden>
  • Date: Tue, 13 Apr 2010 11:10:10 -0700

yes, good point, I'll do that

On Apr 13, 2010, at 1:11 AM, Wolfgang Kundrus wrote:

> Thanks, I have not seen any hint to that in the documentation. Maybe,
> it needs to be added to the documentation of
> kAudioUnitProperty_ClassInfo, so you can not miss it.
>
> All the best
> Wolfgang
>
> 2010/4/12 William Stewart <email@hidden>:
>> Hi Wolfgang
>>
>> It is the responsibility of the host to notify that some of the parameter values might have changed.
>>
>> something like this should be done after you set the class info:
>>
>> AudioUnitParameter changedUnit;
>> changedUnit.mAudioUnit = theChangedAU;
>> changedUnit.mParameterID = kAUParameterListener_AnyParameter;
>> AUParameterListenerNotify (NULL, NULL, &changedUnit);
>>
>> Bill
>>
>> On Apr 12, 2010, at 11:58 AM, Wolfgang Kundrus wrote:
>>
>>> I have got a problem with some AudioUnit plugins, in this case the
>>> AUParametricEQ. After I call kAudioUnitProperty_ClassInfo, the UI
>>> update is missing. I can clearly hear that the preset changed, but no
>>> graphical update happens. I am out of option to try, so I am hoping to
>>> gather some information here. For instance, what I am not sure about
>>> is, whether this call should happen in the Initialized or
>>> Uninitialized state.
>>>
>>> The same plugin works fine in AULab.
>>>
>>> Thanks
>>> Wolfgang
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>>
>
>
>
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References: 
 >AudioUnit kAudioUnitProperty_ClassInfo and UI update (From: Wolfgang Kundrus <email@hidden>)
 >Re: AudioUnit kAudioUnitProperty_ClassInfo and UI update (From: William Stewart <email@hidden>)
 >Re: AudioUnit kAudioUnitProperty_ClassInfo and UI update (From: Wolfgang Kundrus <email@hidden>)

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