CsoundVST as a plugin runs in two threads, both managed by the VST ghost, 
one for the GUI, one for the audio and MIDI processing callbacks. In the 
AEffect::idle callback, I call Fl::wait to handle FLTK events.

CsoundVST as a standalone runs in the Fl::run thread, then creates a new 
thread for each Csound or Python run.

Do you have any suggestions on how to manage these? I'm willing to do a bit 
of rewriting to make things work.

Does csound5gui run in the FLTK thread, then in a callback run a Csound 
performance that calls Fl::wait to dispatch FLTK events? I could probably do 
that in standalone mode, but I can't do it in VST plugin mode, because the 
host is managing the callbacks and threads. FLTK events have to be 
dispatched both when Csound is running, and when it is not running.

Regards,
Mike

----- Original Message ----- 
From: "Victor Lazzarini" 
To: "Developer discussions" 
Sent: Saturday, October 28, 2006 9:11 AM
Subject: Re: [Cs-dev] internal callback


> yes, but is the GUI (using FLTK) for your host in a separate
> thread from Csound? If it is, that is the problem.
>
> Winsound uses Yield to update its GUI and therefore
> is completely single-threaded.
>
> Victor
>
>> But I have the same problem (dead widget windows) with or
>> without FLTK  threads. I may have yet another thread in
>> there, it was so long ago I have  forgotten. Would that
>> cause a problem?
>>
>> Regards,
>> Mike
>>
>> ----- Original Message -----
>> From: "Victor Lazzarini" 
>> To: "Developer discussions"
>>  Sent: Saturday,
>> October 28, 2006 4:26 AM Subject: Re: [Cs-dev] internal
>> callback
>>
>>
>> > No FLTK threads fixes it for widgets and graphs,
>> > but not widgets, graphs and keyboard.
>> >
>> > As for CsoundVST, if you use FLTK on a separate
>> > thread inside it for its GUI, then that's why it
>> > does not work. Winsound works because it's
>> single-threaded. >
>> > Victor
>> >
>> >>
>> >> Hi All,
>> >>
>> >> I just wanted to say I tried compiling with
>> noFLTKThreads >> last night and was able to run the
>> keyboard or widget >> windows, but not the graph displays.
>> >>
>> >> For CsoundVST, what happens when you try to run CSD's
>> with >> FLTK widgets?  (No Windows, dead windows, etc.)
>> >>
>> >> steven
>> >>
>> >> On 10/28/06, Michael Gogins 
>> wrote: >> > Could you either take a look at the
>> CsoundVST.cpp and >> > CsoundVstFltk.cpp code (it is
>> currently built with >> > noFLTKThreads=0), or explain to
>> me what I would need to >> do to get FLTK widgets to work
>> in CsoundVST? > >> > Regards,
>> >> > Mike
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "Victor Lazzarini" 
>> >> > To: 
>> >> > Sent: Friday, October 27, 2006 8:32 AM
>> >> > Subject: [Cs-dev] internal callback
>> >> >
>> >> >
>> >> > >I have made the changes and tested on Windows, all
>> >> > seems OK, now in CVS. >Now
>> >> > > we need to test more carefully to see if this has
>> >> > > actuall fixed anything. But
>> >> > > I think this *at least* will prevent future issues
>> >> > > with host yield callbacks.
>> >> > >
>> >> > > Victor
>> >> > >
>> >> > > Victor Lazzarini
>> >> > > Music Technology Laboratory
>> >> > > Music Department
>> >> > > National University of Ireland, Maynooth
>> >> > >
>> >> > >
>> >> > >
>> >>
>> ----------------------------------------------------------
>> >> > > --------------- Using Tomcat but need to do more?
>> Need >> > > to support web services, security? Get stuff
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>> >>
>> >
>>
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>> >> > > _______________________________________________
>> >> > > Csound-devel mailing list
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>> >> > >
>> >>
>> https://lists.sourceforge.net/lists/listinfo/csound-devel
>> >> > > >> >
>> >>
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>> easier >> Download IBM WebSphere Application Server
>> v.1.0.1 based on >> Apache Geronimo
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>> > quickly with pre-integrated technology to make your job
>> > easier Download IBM WebSphere Application Server v.1.0.1
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>>
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>> > _______________________________________________
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