[Clam-devel] Fwd: Qt VSTs on OS X

David García Garzón dgarcia at iua.upf.edu
Tue Jun 2 16:51:46 PDT 2009

Some of the developers of Mixxx are continuing the work on Qt based VST 
plugins. They managed to make them work on Linux and Windows and now they are 
facing some chalenges with MacOS X. Very good news.

----------  Missatge reenviat  ----------

Assumpte: Qt VSTs on OS X
Data: Dimarts, 2 de juny de 2009
De: Albert Santoni <albert.santoni at gmail.com>
A: David García Garzón <dgarcia at iua.upf.edu>

Hey David,

I've been working on a Qt-based VST for about a month now, and your  
earlier post to the CLAM mailing list was very useful. I've had good  
progress getting my VST window to appear properly on Windows and  
Linux, but I haven't been able to get it to work on OS X. After lots  
of googling, all I could find was a quote from someone saying "it's  
not as simple as using QWidget::create() on OS X".

However, I think I've finally had a lucky break. It looks like  
QMacNativeWidget (introduced in Qt 4.5) is designed to help us do what  
create() does on the other platforms:

I'm assuming you haven't tried your CLAM VST code on OS X, because I  
think it'll have the same problems as my code does... (The VST window  
appears blank inside my test VST host, EnergyXT2.)

Anyways, I just wanted to give you a heads up about this possible  
problem and solution. If I get my Qt VST working on OS X, I'll let you  
know and give you some tips. :)


David García Garzón
(Work) dgarcia at iua dot upf anotherdot edu

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