Re: Setting string values and getting keyframe values

Subject: Re: Setting string values and getting keyframe values
From: Darrin Cardani <email@hidden>
Date: Wed, 31 May 2017 10:01:53 -0700

On May 31, 2017, at 8:17 AM, Daniel Walz <email@hidden> wrote:

On Wed, May 31, 2017 at 3:05 PM, Paul Miller <email@hidden> wrote:
I tried to do this in addParameter as default value, but it is only
called once per session. Further instantiation of the generator does
just a clone from the first created instance.

There also seem to be no callbacks, where I could hook in with that...

Any ideas how to achieve this?

Unfortunately, no. Hopefully Darrin will have an idea for you.

I see. After reading a little bit further I understand the reasoning
behind. As I am not allowed to set parameters outside the GUI thread,
it makes sense, that calls from other threads are not allowed.

But as there are so few chances to hook into the system, I don't know,
how I could programmatically do anything.

Is there a chance to give a little more callbacks, e.g when restoring
of parameters was finished, or even a timer callback from the GUI
thread with a low rate like 5 times/sec would at least allow to
synchronise stuff...

I am aware, that what I do is not standard, but I think a little more
freedom for plugins should be possible.

Or maybe some of that is already possible? Darrin?

I have seen other developers use techniques like the following:

At some point when you aren’t allowed to set parameters, issue a call to:
[-myPlugin performSelectorOnMainThread:@selector(setSpecialParams:)
withObject:whateverObjectYouNeed
waitUntilDone:NO];
Then in -setSpecialParams:, you can use the FxCustomParameterActionAPI to start an action, then set parameters as you like, then call endAction:.

What this does is performs whatever selector you choose on the main UI thread. The calls to startAction/endAction ensure that the app does the right housekeeping for you to start changing parameter values.

Let me know if that works for you.

Darrin

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Follow-Ups:
- Re: Setting string values and getting keyframe values
  - From: Daniel Walz <email@hidden>

References:
	>Setting string values and getting keyframe values (From: Daniel Walz <email@hidden>)
	>Re: Setting string values and getting keyframe values (From: Daniel Walz <email@hidden>)
	>Re: Setting string values and getting keyframe values (From: Paul Miller <email@hidden>)
	>Re: Setting string values and getting keyframe values (From: Daniel Walz <email@hidden>)
	>Re: Setting string values and getting keyframe values (From: Paul Miller <email@hidden>)
	>Re: Setting string values and getting keyframe values (From: Daniel Walz <email@hidden>)

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