[LAD] How can an LV2 plugin UI get the value of a control port from the plugin?

[Philippe Coatmeur]

On 17/10/14 15:56, Harry van Haaren wrote:
> On Fri, Oct 17, 2014 at 1:30 PM, Phil CM <philcm at gnu.org 
> <mailto:philcm at gnu.org>> wrote:
>
>     Also each time the UI is opened, the widgets are reset at maximum
>     (not the values).
>
> Hi Phil,
>
> Glad to see you're excited and working hard on learning LV2! Checkout 
> the example plugins: they show how things work.
>
> In the UI, there is a  port_event()  function. It tells the UI what 
> port changed, and what its current value is. Use this to do 
> widget->setValue( newValue ); and you're done ;)

No matter what I try, I always end up with a error: ‘class Widget’ has 
no member named ‘setValue’. But I declare Widget quite exactly how you 
do BittaWidget, I require the same files, I don't know *where is your 
setValue member declared*..?
Also, in your example you are really doing

self->widget->graph->value(value);

(But I dont seem to have a "value" method either).

-Phil
>
> Eg (from OpenAV's ArtyFX, Bitta plugin)
> https://github.com/harryhaaren/openAV-ArtyFX/blob/master/bitta/gui/ui.cxx#L131
>
>     How can I /get/ the control ports values from the UI perspective?
>
> In answer to your Q, how to "get", you don't: you're told when there's 
> a new value.
>
> HTH, Cheers, -Harry
>
> -- 
>
> http://www.openavproductions.com
>
>
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-- 
Philippe "xaccrocheur" Coatmeur
http://bitbucket.org/xaccrocheur  /https://github.com/xaccrocheur
http://opensimo.org/play/



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