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Hi, from the FAQ in the documentation: Q: How does Audio Processing Bypass work? In order to implement audio process bypassing, the Plug-in can export a parameter which is additionally and exclusively flagged as having the attribute kIsBypass. When the user activates the Plug-in bypass in the host, ...

The crashes in Cakewalk were bugs in their VST3 implementation. I think that this should be fixed in the latest release.

Cheers,
Arne

OK, have a look at how AGain sends it VUMeter parameter back to the controller from inside the process function (search kVuPPMId).
Just do it the same and a host which supports it can drive another parameter from another plug-in with your parameter.

Cheers,
Arne

Hi,
what's the use-case for writing parameter changes from inside the process function as automation ? Just curios.
And how sample accurate do you need this ?

Cheers,
Arne

There's no automation point definition in the API. The API just knows "parameter changes". The kCanAutomate is a hint to the host that this parameter can be automated. If this is not present, the parameter changes should not be recorded or played back in the host. User changes to a parameter are not...

Hi Alexandre, it really just means that the parameter is able to be automated by the DAW without side-effects. kCanAutomate can't be used for an attribute which changes other attributes, but it is unclear for program change? Don't use for program change. Is it allowed to pass automation data to a pa...

You should always send parameter updates to the IEditController. Everything else is undefined.

Cheers,
Arne

You can of course distribute your GPLv3 licensed application as binary as long as you make the source code available as GPLv3. Then you don't need to sign the "Proprietary Steinberg VST3" license.

Cheers,
Arne

Hi, you don't have to add anything to AGain to let it receive note events. It already has an event input bus declared. See AGain::initialize: //---create Event In/Out buses (1 bus with only 1 channel)------ addEventInput (STR16 ("Event In"), 1); To actually use the events you have to change the AGai...

OK, I was not very clear with my message. But I really don't want you to check for the host name or its automation record mode in your plug-in. You should just be aware that it is actually possible to do, but with so many different results that you should implement it as the SDK documentation says. ...