Re: readonly parameter not updating?
Re: readonly parameter not updating?
- Subject: Re: readonly parameter not updating?
- From: "Kevin Dixon" <email@hidden>
- Date: Fri, 9 Nov 2007 15:38:10 -0500 (EST)
- Importance: Normal
I can't recall (not with the source right now), but I think I already have
the controlling parameter flagged as a GlobalMeta. Do I need to flag the
display parameters as Metas as well? The problem is the display parameters
are not updating when they are not flagged as Writable.
Thanks,
-Kevin
> 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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