Re: ParameterChanged / FxParameterSettingAPI
Re: ParameterChanged / FxParameterSettingAPI
- Subject: Re: ParameterChanged / FxParameterSettingAPI
- From: Dave Howell <email@hidden>
- Date: Mon, 3 Apr 2006 10:09:33 -0700
Yes, that should work.
In what context is parameterChanged being called? That is, is this in
response to an event in a custom parameter or on-screen control, or
just a value change for one of the standard plug-in types?
Dave
On Thu, 30 Mar 2006 21:04:41 -0600, darf <email@hidden> wrote:
Howdy,
Within 'parameterChanged' I would like to change the enabled
state of
another parameter. The documentation states this is possible in a
filter (
which my plugin is ). I have not been successful at retrieving the
FxParameterSettingAPI. I have not actually been able to retrieve
any of the
parameter APIs successfully. Any ideas? Should this be possible?
Documentation:
Parameter Interaction
When a user changes a parameter control for an FxPlug plug-in, the
host
application calls the plug-in method -parameterChanged:. In
response, the
plug-in can change the state of other parameters. For example, if
the value
of a toggle button changes, the plug-in can hide or reveal other
parameter
controls, or change their values.
Note: In FxPlug 1.0, the -parameterChanged: method is included in the
FxFilter protocol, but not in the FxGenerator protocol. Generator
plug-ins
that need to respond to parameter changes can use custom parameter UI.
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© 2005 Apple Computer, Inc. All Rights Reserved. (Last updated:
2005-06-04)
Regards,
David Farmer
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