The whole point if getting a pointer to the live CSOUND * from Python is to enable that CSOUND to work with the transport ontrols, which I like.

The other points you mention are as they are in CsoundVST and I agree it should work.

Regards,
Mike

-----Original Message-----
>From: Istvan Varga 
>Sent: May 7, 2006 12:37 PM
>To: csound-devel@lists.sourceforge.net
>Subject: Re: [Cs-dev] csound5gui Error
>
>On Sunday 07 May 2006 19:07, Michael Gogins wrote:
>
>> I believe the problems I was having relate to executing the Python script
>> synchronously and therefore ceasing to dispatch FLTK events. I think
>> running the Csound performance in a separate thread (which is CsoundVST does)
>> will take care of this.
>
>In fact, this frontend also uses a separate thread by default (actually,
>three threads: main GUI, console messages, and audio), but implemented
>with the CsoundPerformanceThread class which does not make it possible
>to run arbitrary code in the audio thread (because it is run internally
>by the class). There is also an alternate, synchronous mode specifically
>for compatibility with the widget opcodes.
>The solution is probably to create another subclass of CsoundPerformance,
>as you mentioned, for use by a Python performance. However, if I
>understand correctly, the Python script takes over controlling the
>performace, so some of the transport controls may need to be disabled,
>but I may be wrong about this.
>
>> There may still be issues with FLTK locking. 
>
>I think if the Python performance runs in a separate thread, the
>use of FLTK graphs and widgets should be disbled there (see
>CsoundPerformance.cpp, line 253), and if the Python/audio thread
>itself does not use FLTK (note that the console messages are
>printed using a queue that is polled by the console thread - the
>Csound message callback itself only queues the messages, but does
>not actually print them), then the FLTK locking should not be an
>issue.
>
>
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