[Ardour-Dev] Dynamically changing window sizes for loaded AUs..

Paul Davis paul at linuxaudiosystems.com
Wed Apr 6 10:20:32 PDT 2016

There have been other reports about this. I believed that we had added
support window resizing, but it appears that the work is either wrong or
incomplete. It isn't common for plugins to do window resizing, but the AU
spec does support it.

On Wed, Apr 6, 2016 at 1:02 PM, Rory Walsh <rorywalsh at ear.ie> wrote:

> For the past number of years I've been developing an audio plugin wrapper
> for Csound called Cabbage. I've used it extensively with Ardour on Linux
> through a Linux native VST interface but I'm having some issues with my
> AudioUnit interface on OSX. My AU implementation works fine on other hosts,
> but I'm seeing a problem with Ardour. Let me first explain how my Cabbage
> AU works. When a user drops an instance of the AU plugin onto a track, it
> creates a dummy plugin which contains a browse button. Users click the
> browse button to select a Csound file they wish to use. The Csound file
> contains information about the plugin GUI. If the chosen file requests a
> window size other than that of the dummy plugin, Ardour does not
> dynamically resize the window. Dragging the bottom corner of the plugin
> does not work either. That simply makes the plugin window larger, but no
> more of the plugin is shown. You can see in the following screenshots what
> I mean:
> http://forum.cabbageaudio.com/t/where-do-i-get-cabbageau/201/6
> The instrument in the second screenshot should have a lot more controls
> visible, but they are truncated to the size of the plugin window. I'll keep
> 'plugin' away on my implementation, but I just thought I would ask, is
> Ardour capable of dynamically updating the window size of a plugin, after
> it has been first loaded? Are there AU examples you can think of that do
> change their window size? I'm beginning to think it only works in Logic and
> Garageband by pure luck!
> Regards,
> Rory.
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