Re: AudioUnits, AudioUnitCarbonView and Automation.
Re: AudioUnits, AudioUnitCarbonView and Automation.
- Subject: Re: AudioUnits, AudioUnitCarbonView and Automation.
- From: Bill Stewart <email@hidden>
- Date: Tue, 24 Sep 2002 18:55:39 -0700
on 24/9/02 2:17 PM, Jeremy Sagan wrote:
>
Hello all,
>
>
Perhaps someone can help me. I have all three of the above working with
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the following exceptions:
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>
1. I cannot find a way to get the values from trackcontrol. In other
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words while the control is being dragged I (the host) do not get called
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with the in between automation parameters. I have a listener installed
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but that only gets me the mouse up and mouse down values.
You can install a Slider track proc - see Xcontrol in the Xframework classes
in the SDK...
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2. It seems that the AudioUnitCarbonView does not update its view when
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I call it with set parameter. I am very new to carbon events so I
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probably need to force an update.
SetParameter on its own will not help. The notification to change a
parameter value is done through the AUListener mechanism and the generic
view uses these listeners to update its display.
In the SDK there is some usage of this (AudioUnitHosting) - there's specific
usage of this API in the AUView classes in the SDK and some docs on it as
well
Bill
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>
Any insights will be greatly appreciated!
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>
Thanks,
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Jeremy
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