[linux-audio-dev] LADSPA + GUI?

[Paul Davis]

>In theory:
>
>	VST provides a (cross-platform) library (libvstgui) that is used
>	to draw pixmap GUIs. The plugin code calls UI functions.
>
>In practice:
>
>	Many plugins call OS specific drawing functions.
>
>I'm not sure how automation is handled, but I dont think UI controls are
>routed via the host, so I'm guess its done on "trust" and fudged timing.

the plugin is supposed to make a callback to the host
("setParameterAutomated") to tell the host about the change in the
parameter value.